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Home , Bidessini, Chaco National Park, Chaco Province, Copelatinae, Copelatus caelatipennis, Copernicia alba

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ISSN 0373-5680 (impresa), ISSN 1851-7471 (en línea) Revista de la Sociedad Entomológica N° 72 (3-4): 00-00, 2013

Aquatic Coleoptera from two protected areas of the eco-region (Chaco , Argentina) Libonatti, María L., Mariano C. Michat and Patricia L. M. Torres IBBEA-CONICET - Laboratorio de Entomología, Departamento de Biodiversidad y Biología Experimental, Facultad de Ciencias Exactas y Naturales, Universidad de , Ar- gentina; e-mail: [email protected]

Los coleópteros acuáticos de dos áreas protegidas de la ecorregión Chaco Húmedo (Provincia del Chaco, Argentina)

RESUMEN. Se presenta por primera vez una lista de las especies de coleópteros acuáticos que habitan en el parque nacional Chaco y en el refugio de vida silvestre El Cachapé, dos áreas protegidas pertenecientes a la ecorregión Chaco Húmedo. Se identificaron 122 especies incluidas en 45 géneros y 10 familias. Dos especies se citan por primera vez para la Argentina: Ora atroapicalis Pic y Ora semibrunnea Pic (Scirtidae). Diez géneros (: Anodocheilus Babington, Régim- bart, Hemibidessus Zimmermann; Noteridae: Mesonoterus Sharp, Notomicrus Sharp; Hydraenidae: Hydraena Kugelann, Gymnochthebius Orchymont; Hydrophilidae: Chasmogenus Sharp, Chaetarthria Stephens; Scirtidae: Ora Clark, Scirtes Illiger) y 41 especies son citados por primera vez en la provincia del Chaco. La alta diversidad de coleópteros acuáticos registrados destaca la importancia de estas áreas protegidas.

PALABRAS CLAVE. Coleópteros acuáticos. Inventario. Parque Nacional Chaco. Refugio El Cachapé. Región Neotropical.

ABSTRACT. A list of the species of aquatic Coleoptera inhabiting and El Cachapé Wildlife Refuge, two protected areas located in the Humid Chaco eco-region, is presented for the first time. One hundred and twenty-two spe- cies included in 45 genera and 10 families were identified. Two species are new for Argentina: Ora atroapicalis Pic and Ora semibrunnea Pic (Scirtidae). Ten gene- ra (Dytiscidae: Anodocheilus Babington, Bidessonotus Régimbart, Hemibidessus Zimmermann; Noteridae: Mesonoterus Sharp, Notomicrus Sharp; Hydraenidae: Hydraena Kugelann, Gymnochthebius Orchymont; Hydrophilidae: Chasmogenus Sharp, Chaetarthria Stephens; Scirtidae: Ora Clark, Scirtes Illiger) and 41 species are first cited for . The high diversity of aquatic Coleoptera recorded highlights the importance of these protected areas.

KEY WORDS. Aquatic Coleoptera. Inventory. Chaco National Park. El Cachapé Ref- uge. Neotropical Region.

INTRODUCTION (31°S) latitudes, it shows strong gradients that define distinct subregions: the Humid, Dry, and The occupies more than 100 mil- Montane Chaco. The existence of broad climatic lion ha of territory in four South American coun- gradients, together with geological and topo- tries (Argentina, , and ), graphic features, generate a wide diversity of and is thus the largest forested region in the con- environments: wide , swamps, dry or sea- tinent after Amazonia. Due to its large extension sonally flooded savannas, marshes, salt flats, a including both tropical (18°S) and subtropical great variety of forests and scrublands, and typi-

Recibido: 13-VIII-2013; aceptado: 15-X-2013 183 Revista de la Sociedad Entomológica Argentina 72 (3-4): 00-00, 2013 LIBONATTI, M. L. et al. Aquatic Coleoptera from the Humid Chaco cal montane habitats in the southwestern portion, previously was a private cattle ranch, became a next to the road, 1 km apart from the entrance from the manor house, in a completely exposed which lead to a high level of biodiversity (TNC et Wildlife Refuge in 1990 after an agreement be- to Chaco National Park, completely exposed to sector with muddy soil, relatively clear water, and al., 2005). In Argentina, the Humid Chaco eco- tween its owner and the Vida Silvestre Argentina insolation, with muddy soil, turbid water, and almost completely covered by Nymphoides in- region is located in the eastern part of Chaco foundation. It is located in the south-eastern part vegetation composed of Poaceae on the mar- dica and other unidentified dycotiledons. and Formosa and in the northern part of Chaco Province (26º 49’ S, 59º 08’ W), in the gins and center. of , and covers 16 millon ha department Primero de Mayo, the nearest local- B. Large square pond (drinking trough about Collection techniques representing 5.7% of the Argentinean surface. ity being the small village named La Eduviges. It 15x15 m and 1 m maximum depth) located con- However, only 0.4% of the protected surface of covers a surface of 1,750 ha (Fig. 1). Both areas tiguous to pond A, completely exposed to inso- Specimens studied were captured in El Argentina belongs to this eco-region, thus con- preserve a representative portion of the Humid lation, with muddy soil, very turbid water, and Cachapé Wildlife Refuge on 3-4 December tradicting the minimal international standard rec- Chaco eco-region. The main habitats comprise: vegetation composed of Poaceae and Cyper- 2008 and in Chaco National Park on 18-20 Jan- ommended of 10% (Brown et al., 2012). During forests of balansae (quebracho col- aceae on the margins. uary 2011. Collection techniques consisted of the last two decades, the advance of the agricul- orado chaqueño); scrubland, composed mainly C. Negro River. This is the only river present aquatic nets (round bag, 25-30 ring diameter, tural frontier, the increased deforestation and the of (quebracho colorado in the Chaco National Park and one of the main 0.5-1.0 mm mesh) and mercury light traps (250 development of the road system have contrib- santiagueño), Aspidosperma quebracho-blan- rivers of Chaco Province, running with N-S di- watts), according to Torres et al. (2012). Suba- uted to the loss of native forest in the Chaco eco- co (quebracho blanco), alba (algar- rection between the marshes of Negro River quatic traps were also employed, consisting of region, resulting in 96% of forest loss in Santa Fe robo blanco), (algarrobo negro) and Barranqueras River. The sampling site was a 6 L plastic bottle baited with tuna, placed on Province, 32% in Chaco Province and 11% in and Tabebuia spp. (lapacho); gallery forest, established near the campsite of the park, in a the bottom of pond B during the night. This kind (Brown et al., 2012). dominated by Gleditsia amorphoides (espina zone of the river with very slow current, semi- of trap is very useful for capturing large-sized In order to evaluate possible future impacts corona), Myrsine laetevirens (canelón), Trichilia exposed to insolation (gallery forest on the mar- active adult Dytiscidae which usually avoid of anthropic environmental changes, it is neces- catigua (catiguá colorado), Brunfelsia australis gins), muddy bottom, and completely covered aquatic nets. The material collected in these sary to rely on inventories of natural ecosystems. (jazmín paraguayo), Trichilia elegans, Allophylus by floating vegetation, mainly Pistia stratiotes, expeditions was fixed in situ with 96% ethanol So far, the available information about the diver- edulis (chal chal), with ground covered by sev- accompanied by Eichhornia sp. and Spirodela and is held in the collection of the Laboratory of sity of aquatic Coleoptera in Chaco Province is eral species of bromeliads; savanna, character- intermedia, with some Poaceae also present. Entomology, Buenos Aires University, Argentina. scarce and fragmentary. Although Neiff & Poi de ized by alba (caranday) and several D. Negro River. This sampling site is located Neiff (1978), Poi de Neiff (1983) and Poi de Neiff species of Paspalum; marshes and small ponds outside the park but at a short distance from its Taxonomic identification & Neiff (1984) have made valuable contributions (Brown et al., 2012). These environments lodge boundaries. The bottom was muddy and the to the knowledge of macroinvertebrates associ- a wide diversity of mammals, reptiles, birds and current very slow, the surface of the water being Taxonomic classification of aquatic families of ated to aquatic macrophytes in Humid Chaco, fishes. From a topographic point of view, this covered almost totally by Nymphoides indica Coleoptera followed Nilsson (2013) (for Dytisci- their studies had an ecological approach and area is part of the large Chaco-Pampa , ex- and Azolla cristata, with some Polygonum punc- dae), Beutel & Roughley (2005) (for Gyrinidae), were not focused on aquatic Coleoptera. tending from the Pampean and subandean hills tatum, Sagittaria montevidensis and Hydrocotile Nilsson (2011) (for Noteridae), Short & Fikáček Chaco National Park and El Cachapé Wildlife to the Paraguay-Paraná Rivers in the north and sp. also present. This site was more exposed to (2013) (for Hydrophilidae) and Lawrence & Refuge are among the 13 protected areas found to the Atlantic coast in the east, with a general insolation, although gallery forest was present Yoshitomi (2007) (for Scirtidae). Specimens in Chaco Province, both are considered priority slope from west to east. The altitude within this on the margins. collected were identified to the lowest possible areas for biodiversity conservation (TNC et al., eco-region is less than 100 masl and the mean E. Relatively small pond about 15 m in length, taxonomic level, using available keys and lit- 2005), and the aquatic Coleoptera inhabiting annual precipitation is 1200 mm. 5 m in width and 40 cm maximum depth, locat- erature (Pic, 1922, 1928; Young, 1974; Grosso, them are unknown. Therefore, the focus of this ed behind the house for visitors, semi-exposed 1979; Trémouilles, 1989; Young, 1990; Grosso, paper is to provide the first inventory of aquatic Sampling sites to insolation, with sandy soil, turbid water, 1993; Trémouilles et al., 1995; Miller, 2000; Oliva Coleoptera from the Humid Chaco eco-region, Poaceae and Cyperaceae on the margins, and et al., 2002; Trémouilles et al., 2004, 2005; Miller, based on material collected in the two protected The sites sampled were not selected ac- surrounded by some large . 2005, 2009; Archangelsky et al., 2009; Libonatti areas mentioned above. cording to any specific criterion, they involved F. Very small pond about 2 m in length, 1 m in et al., 2011). Identification of the species of the every kind of available fresh water found in the width and 10 cm maximum depth, located near family Scirtidae was made by comparison with MATERIAL AND METHODS two protected areas. However, given the dif- the house for visitors, exposed to insolation, with type material or identified material borrowed ficult characteristics of the landscape, we only muddy soil, very turbid water, and almost com- from the Muséum National d’Histoire Naturelle Study areas had access to a small portion of the whole area. pletely covered by Nymphoides indica. (Paris, France) and the Natural History Museum Although we were unable to find more aquatic G. Small semipermanent oval pond about 15 (London, United Kingdom). Chaco National Park was created in 1954, in habitats, we suspect that additional water bod- m in length, 5 m in width and 70 cm maximum the central-eastern part of Chaco Province (26º ies may be found with a more extensive search. depth, located next to the main road entering the RESULTS 40’ S, 59º 48’ W, Fig. 1). With an extension of The sites A-D are inside Chaco National Park refuge, completely exposed to insolation, with 14,981 ha, it occupies part of the departments or very close to its boundaries; the sites E-H are muddy soil, very slightly turbid water, and Polyg- A total of 122 species of Coleoptera were Sargento Cabral and Presidencia de la Plaza, inside El Cachapé Wildlife Refuge: onum punctatum and Poaceae on the margins. identified, included in 45 genera and 10 families the small city of Capitán Solari being the nearest A. Small oval pond about 20 m in length, 5 H. Quiá stream. Main stream of the refuge. The (Table I). Dytiscidae was the most represented locality. On the other hand, El Cachapé, which m in width and 20 cm maximum depth, located sampling site was established about 100 m apart family in terms of number of genera (17), fol-

184 185 Revista de la Sociedad Entomológica Argentina 72 (3-4): 00-00, 2013 LIBONATTI, M. L. et al. Aquatic Coleoptera from the Humid Chaco lowed by Hydrophilidae (12), Noteridae (6), and three genera (Aciliini: Thermonectus Dejean, for the first time by Libonatti et al. (2011), who in central and northern provinces including Gyrinidae (2), Hydraenidae (2), Scirtidae (2), Aubehydrini: Notaticus Zimmermann, and Cyb- examined material coming from El Cachapé Chaco (Trémouilles, 1998; Torres et al., 2008), Haliplidae (1), Dryopidae (1), Epimetopidae (1) istrini: Megadytes Sharp). Currently, there are Refuge. The Liodessus Guignot, widely and an unpublished genus (Toledo & Michat, in and Hydrochidae (1). However, with regards to five species of Thermonectus distributed from distributed in this country (Trémouilles, 1998), prep.) which occurs in Chaco, and species, Hydrophilidae was the richest family central to northern Argentina. Thermonectus was cited for the first time from Chaco Province Entre Ríos Provinces (Libonatti et al., 2011). Five (43), followed by Dytiscidae (37), Noteridae (21), succinctus (Aubé) is the only species previously by Poi de Neiff & Neiff (1977), who found an uni- unidentified species of Laccophilus and one Scirtidae (7), Hydrochidae (5), Hydraenidae recorded from Chaco Province (Trémouilles, dentified species associated to Pistia stratiotes species of the unpublished genus were collect- (3), Gyrinidae (2), Haliplidae (2), Dryopidae (1) 1989). Thermonectus circumscriptus (Latreille), in the Barranqueras river. Here, we found an uni- ed in this study. and Epimetopidae (1). Two species are new for formerly cited from Misiones, Salta, Santa Fe dentified species in both areas studied. Argentina: Ora atroapicalis Pic and Ora semib- and Jujuy Provinces (Trémouilles, 1998; Torres The tribe Hydrovatini was represented in this Family Gyrinidae runnea Pic (Scirtidae). Ten genera (Dytiscidae: et al., 2008), is cited here for the first time. The study by the genus Hydrovatus Motschulsky, The Argentinean fauna of Gyrinidae includes Anodocheilus Babington, Bidessonotus Régim- monotypic genus Notaticus contains N. fascia- one of the two genera of this tribe. All the three three genera (Andogyrus Ochs, Gyretes Brullé bart, Hemibidessus Zimmermann; Noteridae: tus Zimmermann, which in Argentina inhabits species of Hydrovatus occurring in Argentina and Gyrinus Müller) and about 26 species, alto- Mesonoterus Sharp, Notomicrus Sharp; Hydrae- Formosa, Salta, Chaco, Corrientes and Santa were collected in the present study: Hydrova- gether distributed in the whole territory except nidae: Hydraena Kugelann, Gymnochthebius Or- Fe Provinces (Trémouilles, 1998). Particularly in tus caraibus Sharp, H. crassulus Sharp and H. the southernmost part of (Michat & chymont; Hydrophilidae: Chasmogenus Sharp, Chaco Province, it had been recorded from the turbinatus Zimmermann. Altogether, these spe- Archangelsky, in press). In the study area, we Chaetarthria Stephens; Scirtidae: Ora Clark, localities El Pintado, Resistencia, Fontana, El cies are distributed in eastern-central and north- collected two species: Gyrinus violaceus Régim- Scirtes Illiger) and 41 species of aquatic Coleop- Palmar and San Bernardo (Trémouilles & Bach- ern Argentina, but so far Chaco Province has bart and an unidentified species of Gyretes (Ta- tera are first cited from Chaco Province (Table I). mann, 1981). The genus Megadytes is repre- been part of the distribution of the first two only ble I). So far, the former species had been cited sented by 10 species in Argentina, distributed (Trémouilles et al., 2005), thus H. turbinatus is from Brazil, and Argentina, in Salta, Mi- DISCUSSION all throughout the country north of Río Negro first recorded. The other genus of Hydrovatini siones and Corrientes Provinces (Bruch, 1915; Province (Trémouilles, 1998; Torres et al., 2007, is Queda Sharp, with only one species in Ar- Fernández et al., 2008; Torres et al., 2012; Mi- Suborder 2008). Four of the six species known to be pre- gentina: Q. youngi Biström, recently recorded chat & Archangelsky, in press). Thus, this is the sent in Chaco Province were identified in this from (Libonatti et al., 2011; first mention of this species for Chaco Province. Family Dytiscidae study, and one species in adult stage could not Torres et al., 2012). This species has not been With more than 4200 described species be identified with the available keys. recorded from Chaco Province, but it is expect- Family Haliplidae (Nilsson, 2013), Dytiscidae is the world’s most The subfamily includes six able to be found there as well as in Formosa The family is represented in Argentina by the speciose family of water . The Argen- tribes in Argentina, five of which were found in Province (Libonatti et al., 2011). genus Haliplus Latreille with 10 species, altogeth- tinean fauna of Dytiscidae is composed of 119 this study: Bidessini Sharp, Hydrovatini Sharp, The Argentinean members of the tribe Hyphi- er covering practically the whole country (Vondel species, distributed in eight subfamilies (Aga- Hyphydrini Sharp, Methlini Branden and Vatel- drini are placed in two genera: Desmopachria & Spangler, 2008). Two species were found in the binae, Colymbetinae, , Dytiscinae, lini Sharp. In Argentina, nine genera of Bidessini Babington and Pachydrus Sharp (Trémouilles, study area: Haliplus maculicollis Zimmermann Hydroporinae, Hydrodytinae, Laccophilinae, are present (Libonatti et al., 2011), and in this 1995). In this study, specimens of Desmopachria and an unidentified species. The distribution of Lancetinae) and 31 genera (Libonatti et al., study we found five genera and five species. concolor Sharp, Pachydrus globosus (Aubé) H. maculicollis in Argentina comprises Santiago 2011). In the habitats sampled in our study, the Three genera and three species are first re- and P. obesus Sharp were captured, all of del Estero, Salta, Buenos Aires, Formosa and family was represented by four subfamilies, 17 corded from Chaco Province: Anodocheilus which were formerly known from Chaco Prov- Corrientes Provinces (Vondel & Spangler, 2008; genera and 37 species, seven of which are new maculatus Babington, known to occur in Buenos ince (Neiff & Poi de Neiff, 1978; Trémouilles, Gómez Lutz et al., 2012). Therefore, this paper for Chaco Province (Table I). Aires, Corrientes and Entre Ríos Provinces (Tré- 1998). Additionally, four unidentified species of provides the first record for Chaco Province. We found one genus and two species of the mouilles, 1998; Torres et al., 2007; Libonatti et Desmopachria were found. subfamily Copelatinae: caelatipennis al., 2011; Torres et al., 2012), Bidessonotus obtu- The tribe Methlini contains two genera world- Family Noteridae Aubé and C. longicornis Sharp, the former one satus Régimbart, so far distributed in Jujuy, Cor- wide, of which only Celina Aubé is present in the Noteridae comprises almost 260 species is herein first cited from Chaco Province. Six rientes and Entre Ríos Provinces (Torres et al., American continent (Nilsson, 2013). There are worldwide, included in three subfamilies, six genera of Copelatinae exist worldwide (Balke et 2008; Libonatti et al., 2011; Torres et al., 2012), seven species described from Argentina, dis- tribes and 16 genera (Nilsson, 2011). Two sub- al., 2004), two of them are present in Argentina: and Hemibidessus conicus (Zimmermann), re- tributed in eastern-central and northern Provinc- families, three tribes and six genera occur in Ar- Copelatus Erichson, distributed in Buenos Aires, cently discovered in the Argentinean fauna, in es, including Chaco (Trémouilles, 1998; Torres gentina (Noterinae: Noterini: Hydrocanthus Say, Chaco, Corrientes, Entre Ríos, Jujuy, Misiones Corrientes Province (Libonatti et al., 2011; Torres et al., 2007). Adults of four unidentified species Mesonoterus Sharp, Suphis Aubé, Suphisellus and Salta Provinces (Trémouilles, 1998; Torres, et al., 2012). The only species of Brachyvatus and larvae of Celina were collected in Chaco Crotch, Pronoteriini: Pronoterus Sharp; Noto- et al., 2008, 2012), and Agaporomorphus Zim- Zimmermann occurring in Argentina, B. acumi- National Park, but the lack of a taxonomic re- micrinae: Notomicrini: Notomicrus Sharp) (Tré- mermann, recently discovered in Misiones and natus (Steinheil), was originally described from vision of the Neotropical species makes their mouilles et al., 1995; Nilsson, 2011). Corrientes Provinces (Libonatti et al., 2011; Tor- Buenos Aires and later discovered in Corrientes, identification very difficult. In our study, the genus Hydrocanthus was res et al., 2012). Entre Ríos and Chaco Provinces (Torres et al., Within the subfamily Laccophilinae, only Lac- represented by four of the six species that inhabit The subfamily Dytiscinae was represented 2007; Libonatti et al., 2011; Torres et al., 2012). cophilini is present in Argentina (Nilsson, 2013), Argentina. Hydrocanthus debilis Sharp, H. sharpi by three tribes (out of four present in Argentina) Its presence in Chaco Province was mentioned represented by Laccophilus Leach, distributed Zimmermann and H. socius Sahlberg had been

186 187 Revista de la Sociedad Entomológica Argentina 72 (3-4): 00-00, 2013 LIBONATTI, M. L. et al. Aquatic Coleoptera from the Humid Chaco previously cited from Chaco Province (Black- (Sharp), previously cited from Entre Ríos and species, 16 new for Chaco Province. respectively. Berosus holdhausi Knisch, B. ru- welder, 1944; Nilsson, 2011). The fourth species, Chaco Provinces (Oliva et al., 2002). The subfamily Acidocerinae was represent- fulus Knisch, B. speciosus Knisch, D. altus (Le- H. paraguayensis Zimmermann, is first cited here. ed in our study by the three genera inhabiting Conte) and D. ambitus Orchymont are recorded A single species of the genus Mesonoterus, Family Hydraenidae Argentina: Chasmogenus Sharp, Helobata Ber- from Chaco Province for the first time. The tribe M. laevicollis Sharp, was collected. Both the In this family contains ca. 140 groth and Helochares Mulsant. Chasmogenus Hydrophilini was represented by Hydrobiomor- genus and the species are cited for the first species and eight genera (Archangelsky et al., sapucay Fernández, the only Argentinean mem- pha Blackburn, with three species, Hydrophilus time from Chaco Province. Three species of 2009). In Argentina, there are members of the ber of the genus, is known from Formosa, San- Geoffroy, with one species, and Tropisternus So- the genus Suphis were identified: Suphis cimi- genera Gymnochthebius Orchymont, Hydraena tiago del Estero and Corrientes Provinces (Oliva lier, with nine species. Tropisternus regimbarti coides Aubé, S. fluviatilis Guignot and S. freudei Kugelann and Meropathus Enderlein. Species of et al., 2002; Torres et al., 2012), therefore we cite Orchymont, previously known from Formosa and Mouchamps, all of them previously known from other three genera from bordering countries (Hy- the genus and species for the first time from Salta Provinces, and T. sharpi Orchymont, ear- Chaco Province (Grosso, 1993). draenida Germain, Ochthebius Leach, Parhy- Chaco Province. Helobata includes five species lier known to occur in Buenos Aires, Entre Ríos, Twenty-three species of Suphisellus are found draenida Balfour-Browne) might also be present (Oliva et al., 2002; Torres et al., 2012), of which Corrientes and Misiones Provinces (Oliva et al., in Argentina (Nilsson, 2011; Torres et al., 2012) (Torres & Archangelsky, in press). Here we col- we found two: H. cossyphoides (Bruch) and H. 2002), are herein first cited from Chaco Province. and 10 species were found in the study area. lected three species: Gymnochthebius fossatus larvalis (Horn). Helobata cossyphoides is new for The tribe Laccobiini was represented by three Three of them were unknown from Chaco Prov- (LeConte) and two unidentified species of Hy- Chaco Province, since it was known from Bue- unidentified species in the genus Paracymus. ince: S. cribrosus (Régimbart), S. curtus (Sharp) draena. Up to now, the only record for the fam- nos Aires, Entre Ríos, Corrientes and Santa Fe The current distribution of this genus includes and S. subsignatus (Sharp). Suphisellus curtus ily Hydraenidae from Chaco Province is that by Provinces (Oliva et al., 2002). Helochares has Buenos Aires, Entre Ríos, Corrientes, Misiones, (Sharp) was earlier recorded from Corrientes Neiff & Poi de Neiff (1978), who identified some five species known to exist in Chaco Province. Chaco, Tucumán, Córdoba and San Luis Prov- Province (Torres et al., 2012). larvae at the family level. Therefore, both genera We collected three species, of which only one inces (Poi de Neiff & Neiff, 1977; Archangelsky, The Argentinean members of the genus No- and G. fossatus are cited here for the first time. (H. mesostitialis Fernández) was previously re- 1999; Oliva et al., 2002; Torres et al., 2007, 2012). tomicrus are represented by three species (Nils- corded. The other two are first cited: H. atratus The subfamily Sphaeridiinae in Argentina son, 2011; Torres et al., 2012), two of which were Family Hydrochidae Bruch, earlier distributed in Buenos Aires, Entre includes eight species in one tribe (Coelosto- collected in this study: N. brevicornis Sharp and This monogeneric family is represented by Ríos, Misiones, Santa Fe and Santiago del Este- matini) and one genus (Phaenonotum Sharp) N. traili Sharp. Notomicrus brevicornis is known 17 species in Argentina, most of them distrib- ro Provinces, and H. mini Fernández, previously (Trémouilles et al., 1995). In this study, we found from Santa Fe and Corrientes Provinces (Bruch, uted in the northern part of the country (Oliva et known from Corrientes and Santa Fe Provinces two species: P. argentinense Bruch and P. punc- 1927; Torres et al., 2012) and N. traili from Cor- al., 2002). In this paper, we report the presence (Oliva et al., 2002). ticolle Bruch. The former species is distribut- rientes Province (Torres et al., 2012). This is the of five species: H. drechseli Makhan, Hydrochus The subfamily Chaetarthriinae was represent- ed in Buenos Aires, Entre Ríos, Santa Fe and first record of the genus and both species from ducalis Knisch, H. obscurus Sharp, H. richteri ed by the genus Chaetarthria Stephens, first re- Tucumán (Archangelsky, 1991) and the latter is Chaco Province. Bruch and H. variabilis Knisch. Hydrochus duca- corded here from Chaco Province. One out of six known from Buenos Aires, Entre Ríos and Santa lis was known from Santa Fe, Chaco, Formosa species of this genus occurring in Argentina was Fe (Archangelsky, 1992), and therefore both Suborder Polyphaga and Corrientes Provinces (Fernández & Bach- recorded: C. bruchi Balfour-Browne. The known species are new for Chaco Province. mann, 1998; Torres et al., 2012) and H. obscu- localities for this species are in La Rioja, Mis- Family Dryopidae rus was known from Buenos Aires, Entre Ríos, iones, Salta and Tucumán Provinces (Fernández Family Scirtidae Four genera of Dryopidae are recognized in Corrientes, Misiones, Santa Fe, Chaco and & Bachmann, 1998; Archangelsky, 2002). About 1,300 species and almost 50 genera Argentina: Dryops Olivier, Helichus Erichson, Formosa Provinces (Fernández & Bachmann, The subfamily Enochrinae, with only the ge- are recognized in Scirtidae around the world Onopelmus Spangler and Pelonomus Erichson 1998). Hydrochus drechseli, so far known from nus Enochrus Thomson present in Argentina, (Klausnitzer, 2009). The family is currently di- (Trémouilles et al., 1995). In this study, we found Formosa Province, H. richteri, earlier distributed was represented by four species in this study, vided in three subfamilies: Stenocyphoninae, an unidentified species of Pelonomus. Three in Buenos Aires, Entre Ríos, Corrientes, Mis- two of which first cited from Chaco Province: E. Nipponocyphoninae and Scirtinae (Lawrence species of this genus occur in Argentina and iones and Santa Fe Provinces, and H. variabi- circumcinctus (Bruch) and E. obsoletus (Bruch). & Yoshitomi, 2007). Up to now, Argentina had several others in Brazil (Blackwelder, 1944). lis, previously known to occur in Buenos Aires, The former species was known from Buenos housed 17 species classified in one subfam- Entre Ríos, Corrientes, Misiones and Santa Fe Aires, Entre Ríos, Corrientes, Misiones, Santa ily (Scirtinae) and five genera (Cyphon Paykull, Family Epimetopidae Provinces (Fernández & Bachmann, 1998), are Fe, Formosa, Tucumán, Jujuy and La Rioja Ora Clark, Prionocyphon Redtenbacher, Pseu- The family Epimetopidae is part of the super- new records for Chaco Province. Provinces (Denton & Oliva, 1999; Oliva et al., domicrocara Armstrong, and Scirtes Illiger) (Tré- family Hydrophiloidea, together with other five 2002; Torres et al., 2012), whereas the latter was mouilles et al., 1995; Klausnitzer, 2012; Libon- families all over the world. In Argentina, there Family Hydrophilidae known to occur in Buenos Aires, Entre Ríos, Cor- atti & Ruta, 2013). Larvae of Scirtidae had been are representatives of five hydrophiloid fami- The Argentinean Hydrophilidae include al- rientes, Santa Fe, Tucumán and Jujuy Provinces cited from Chaco Province under the old name lies: Epimetopidae, Georissidae, Hydrochidae, most 150 species and 22 genera, recently clas- (Oliva et al., 2002). Helodidae (not presently in use), as part of the Spercheidae and Hydrophilidae (Archangelsky sified in five subfamilies: Acidocerinae, Chaetar- Within the subfamily Hydrophilinae, three pleuston associated to Pistia stratiotes in the et al., 2009). The Epimetopidae include 18 spe- thriinae, Enochrinae, Hydrophilinae, and Spha- tribes were found in the study area: Berosini, Barranqueras River (Poi de Neiff & Neiff, 1977). cies in the genus Epimetopus Lacordaire, five eridiinae (Short & Fikáček, 2013). In this study, Hydrophilini and Laccobiini. The tribe Berosini We report the finding of two species in Chaco of which occur in Argentina (Oliva et al., 2002). we collected specimens of all the subfamilies, was represented by the genera Berosus Leach National Park, which are new for Argentina: Ora In this study, we collected Epimetopus trogoides 12 genera, two new for Chaco Province, and 43 and Derallus Sharp, with nine and five species atroapicalis Pic and O. semibrunnea Pic, both

188 189 Revista de la Sociedad Entomológica Argentina 72 (3-4): 00-00, 2013 LIBONATTI, M. L. et al. Aquatic Coleoptera from the Humid Chaco previously known from Brazil (Pic, 1922, 1928). inhabited by endangered species, and to provide Table I. List of species of aquatic Coleoptera collected at Chaco National Park and El Cachapé Wild- Representatives of Scirtes brevenotatus wag- the base for selecting species or assemblages for life Refuge. A-H: sites studied (see Fig. 1 and Material and Methods); LTC: light traps at Chaco National neri Pic were also collected in Chaco National ecological monitoring (Kremen et al., 1993). Both Park; LTE: light trap at El Cachapé Refuge; NA: new for Argentina; NCP: new for Chaco Province. Park. In the original description of this subspe- Chaco National Park and El Cachapé Wildlife Ref- NA NCP LTC LTE A B C D E F G H cies, Pic (1928) informed that it is distributed uge were established mainly to preserve the Hu- ADEPHAGA in “R. Argentine”, without mentioning any more mid Chaco flora and fauna, mostly mammals, rep- DYTISCIDAE details about the type locality. The examination tiles, and birds known to be endangered. Since Copelatinae of the holotype revealed that it was collected in previous knowledge about biodiversity of aquatic Aubé + + + + + Province: “Républ. Argen- Coleoptera in the Humid Chaco eco-region was C. longicornis Sharp + tine / CHACO DE SANTIAGO / DEL ESTERO, extremely scarce and fragmentary, our study rep- Dytiscinae Río Dulce”. For this reason, this is the first record resents the first attempt to inventory the fauna of Aciliini from Chaco Province. Scirtes oblongus Guérin- this group of beetles in this area. Although incom- Thermonectus circumscriptus (Latreille) + + Méneville was originally described from Yucatán plete and subject to improvements after additional T. succinctus (Aubé) + + + + + (Mexico) (Guérin-Méneville, 1861), and soon fieldwork, our samplings clearly demonstrate that Thermonectus sp. (larvae) + after cited from Veracruz (Mexico) and Panzós the region holds a high diversity of aquatic bee- Aubehydrini (Guatemala) (Champion, 1897). More recently, tles, including several infrequent species rarely Notaticus fasciatus Zimmermann + + + this species was recorded from several locali- found in other regions or in scientific collections. Cybistrini Megadytes (Bifurcitus) magnus Tré- ties in Florida (United States of America) (Epler, The presence of several unidentified taxa (Table +1 mouilles & Bachmann 2009). The type material of this species is sup- I) also emphasizes the potential of the area as a 1 posed to be deposited at the Muséum National source of new, still undescribed species. In con- M. (Megadytes) carcharias Griffini + + + (Oliver) + d’Histoire Naturelle, but unfortunately, in recent clusion, these findings highlight the great impor- M. (M.) laevigatus M. (M.) sp. + visits to that museum it was not found (Ruta, tance of the Humid Chaco eco-region for the pres- M. (Trifurcitus) fallax (Aubé) + pers. comm., 2013). Several specimens collect- ervation of biodiversity. Hydroporinae ed in Chaco National Park (referred to as Scirtes Bidessini aff. oblongus in Table I) resulted similar in colour ACKNOWLEDGEMENTS Anodocheilus maculatus Babington + + + + + + pattern, general shape and morphology of male Bidessonotus obtusatus Régimbart + + + + + genitalia, with subtle differences noticeable, to Thanks to Eduardo Boló Bolaño (El Cachapé Brachyvatus acuminatus (Steinheil) + + + + + + specimens of this species (identified by Cham- Wildlife Refuge) and the Administration of Na- Hemibidessus conicus (Zimmermann) + + pion) collected at Panzós, and most likely rep- tional Parks for giving us the permission to col- Liodessus sp. + + + + + + + resent an allied species. However, the identifi- lect aquatic Coleoptera, to Dr. Juan José Neiff Hydrovatini cation should be confirmed after examination of for helping us identify some aquatic , to Hydrovatus caraibus Sharp + + the type material. Specimens of three additional Thierry Deuve, Azadeh Taghavian (Muséum na- H. crassulus Sharp + species, two of Ora and one of Scirtes, were tional d’Histoire naturelle, Paris, France), Max- H. turbinatus Zimmermann + + also collected in Chaco National Park, but they well V. L. Barclay and Malcolm Kerley (Natural Hyphydrini could not be assigned to any known species. History Museum, London, United Kingdom) for Desmopachria concolor Sharp + + + + + the loan of scirtid specimens, and to two anony- Desmopachria sp. 1 + + Desmopachria sp. 2 + + + + + Final considerations mous referees for their valuable corrections Desmopachria sp. 3 + + + + and comments on the manuscript. This work Desmopachria sp. 4 + Knowing the spatial distribution of species (in was funded by the National Agency for Sci- Pachydrus globosus (Aubé) + + + other words, to inventory) is the first crucial step for entific and Technological Promotion (ANPCyT P. obesus Sharp + every practice related to conservation of natural PICT2010-0526) and the University of Buenos Methlini ecosystems. The information provided by inven- Aires (UBACYT 20020100200199). First author’s Celina sp. 1 + + tories allows to select sites to protect and design work was funded by a postgraduate scholarship Celina sp. 2 + reserves, to assess the potential for sustainable from the National Scientific and Technical Re- Celina sp. 3 + use of natural resources, to prioritize those sites search Council (CONICET). Celina sp. 4 + Celina sp. (larvae) + Vatellini Derovatellus lentus (Wehncke) + + + + Vatellus haagi Wehncke + + Laccophilinae Laccophilus sp. 1 + + + + + + + Laccophilus sp. 2 + + +

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NA NCP LTC LTE A B C D E F G H NA NCP LTC LTE A B C D E F G H Laccophilus sp. 3 + + + + H. variabilis Knisch + + + Laccophilus sp. 4 + + + + + HYDROPHILIDAE Laccophilus sp. 5 + + Acidocerinae Laccophilinae (unpublished genus) + + + + Chasmogenus sapucay Fernández + + GYRINIDAE Helobata cossyphoides (Bruch) + + + Gyrininae H. larvalis (Horn) + + + Gyrinini Helochares atratus Bruch + + Gyrinus violaceus Régimbart + + + + + + + + H. mesostitialis Fernández + + + Orectochilini H. mini Fernández + + + Gyretes sp. + Chaetarthriinae HALIPLIDAE Chaetarthria bruchi Balfour-Browne + + Haliplus maculicollis Zimmermann + + + + Enochrinae Haliplus sp. + Enochrus circumcinctus (Bruch) + + NOTERIDAE E. obsoletus (Bruch) + + Noterinae E. sublongus (Fall) + + + Noterini E. vulgaris (Steinheil) + + + + + Hydrocanthus debilis Sharp + + + + + Hydrophilinae H. paraguayensis Zimmermann + + + + + + + Berosini H. sharpi Zimmermann + + Berosus decolor Knisch + H. socius Sahlberg + B. holdhausi Knisch + + Mesonoterus laevicollis Sharp + + + B. minimus Knisch + + + + Suphis cimicoides Aubé + + + + + B. patruelis Berg + S. fluviatilis Guignot + + + B. pedregalensis Jensen-Haarup + S. freudei Mouchamps + B. reticulatus Knisch + + + Suphisellus cribosus (Régimbart) + + B. rufulus Knisch + + + + + S. curtus (Sharp) + + + B. speciosus Knisch + + S. flavopictus (Régimbart) + + + + + + B. stenocoptus Jensen-Haarup + S. grammicus (Sharp) + Derallus altus (Leconte) + + S. grossus (Sharp) + D. ambitus Orchymont + + S. nigrinus (Aubé) + D. angustus Sharp + + S. remator (Sharp) + + + + D. argutus Orchymont + + S. rotundatus (Sharp) + + D. paranensis Oliva + + + + S. subsignatus (Sharp) + + Hydrophilini Suphisellus sp. + Hydrobiomorpha irina (Brullé) + + Noterini (larvae) + + H. longa (Bruch) + Pronoterini H. spinosa (Orchymont) + Pronoterus punctipennis Sharp + Hydrophilus ensifer Brullé + Notomicrinae Tropisternus apicipalpis (Chevrolat) + + Notomicrus brevicornis Sharp + + T. collaris (Fabricius) + + + + N. traili Sharp + + T. dilatatus Bruch + POLYPHAGA T. laevis (Sturm) + + + + DRYOPIDAE T. lateralis limbatus (Brullé) + + + + Pelonomus sp. + + + T. mergus (Say) + + + EPIMETOPIDAE T. ovalis Laporte + + + + + Epimetopus trogoides (Sharp) + T. regimbarti Orchymont + + HYDRAENIDAE T. sharpi Orchymont + + Hydraena sp. 1 + + + Laccobiini Hydraena sp. 2 + + Paracymus sp. 1 + + + + Gymnochthebius fossatus (LeConte) + + Paracymus sp. 2 + + + HYDROCHIDAE Paracymus sp. 3 + Hydrochus drechseli Makhan + + + Sphaeridiinae H. ducalis Knisch + + + Coelostomatini H. obscurus Sharp + + + Phaenonotum argentinense Bruch + + + H. richteri Bruch + + + + + + P. puncticolle Bruch + +

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NA NCP LTC LTE A B C D E F G H ean species of Pseudomicrocara Armstrong (Coleoptera: gional Assessment. Fundación Vida Silvestre Argentina, Scirtidae). Zootaxa 3718(2): 137-157. Buenos Aires. SCIRTIDAE MICHAT, M. C. & M. ARCHANGELSKY. In press. Gyrinidae. In: TORRES, P. L. M. & M. ARCHANGELSKY. In press. Hydraeni- Ora atroapicalis Pic + + + Roig-Juñent, S., L. E. Claps & J. J. Morrone (eds.), Biodi- dae. In: Roig-Juñent, S., L. E. Claps & J. J. Morrone (eds.), vol. 3. O. semibrunnea Pic + + + versidad de Artrópodos argentinos, vol. 3. Biodiversidad de Artrópodos argentinos, MILLER, K. B. 2000. Revision of the Neotropical genus TORRES, P. L. M., S. A. MAZZUCCONI & M. C. MICHAT. 2007. Ora sp. 1 + Hemibidessus Zimmermann (Coleoptera: Dytiscidae: Hy- Los coleópteros y heterópteros acuáticos del Parque Na- Ora sp. 2 + droporinae: Bidessini). Aquatic 23: 253-275. cional El Palmar (Provincia de Entre Ríos, Argentina): lista Ora sp. (larvae) + MILLER, K. B. 2005. Revision of the New World and south- faunística, diversidad y distribución. Revista de la Socie- east Asian Vatellini (Coleoptera: Dytiscidae: Hydropori- dad Entomológica Argentina 66 (3-4): 127-153. Scirtes brevenotatus wagneri Pic + + nae) and phylogenetic analysis of the tribe. Zoological Torres, P. L. M, S. A. Mazzucconi, M. C. Michat & A. Scirtes aff. oblongus Guérin-Méneville + Journal of the Linnean Society 144: 415-510. O. Bachmann. 2008. Los coleópteros y heterópteros Scirtes sp. + Miller, K. B. 2009. On the systematics of Noteridae (Coleop- acuáticos del Parque Nacional Calilegua (Provincia de tera: Adephaga: Hydradephaga): Phylogeny, description Jujuy, Argentina). Revista de la Sociedad Entomológica Scirtidae (larvae) + of a new tribe, genus and species, and survey of female Argentina 67(1-2): 127-144. 1 captured using subaquatic trap. genital morphology. Systematics and Biodiversity 7(2): Torres, P. L. M., M. C. Michat, m. l. libonatti, l. a. 191-214. fernández, a. oliva & a. o. bachmann. 2012. NEIFF, J. J. & A. POI DE NEIFF. 1978. Estudios sucesionales Aquatic Coleoptera from Mburucuyá National Park (Cor- en los camalotales chaqueños y su fauna asociada. I. Eta- rientes Province, Argentina). Revista de la Sociedad Ento- LITERATURE CITED Denton, J. S. & A. Oliva. 1999. Biodiversity in some lentic pa seral Pistia stratiotes – Eichhornia crassipes. Physis, mológica Argentina 71(1-2): 57-71. habitats from southern South America. I. Hydrophilidae sección B, 37(95): 29-39. TRÉMOUILLES, E. R. 1989. Contribución para el conocimien- Archangelsky, M. 1991. El género Phaenonotum en la Berosini and Hydrophilini (Coleoptera, Hydrophiloidea). NILSSON, A. N. 2011. A world catalogue of the family No- to del género Thermonectus Dejean en la Argentina y Argentina. I. Redescripción de Phaenonotum regimbarti Revista del Museo Argentino de Ciencias Naturales, nue- teridae, or the burrowing water beetles (Coleoptera, areas limítrofes (Coleoptera, Dytiscidae). Revista de la Bruch, 1915 y Ph. argentinense Bruch, 1915 (Coleoptera, va serie 1(1): 49-52. Adephaga). Version 16.VIII.2011. Umeå: distributed elec- Sociedad Entomológica Argentina 46(1-4): 95-115. Hydrophilidae, Sphaeridiinae). Revista de la Sociedad En- Epler, J. H. 2009. More new distribution records for Florida tronically as a PDF file by the author, 54 pp. Available on: TRÉMOUILLES, E. R. 1995. Insecta, Coleoptera, Dytiscidae. tomológica Argentina 49(1-4): 157-164. water beetles (Coleoptera: Dytiscidae, Elmidae, Hydro- http://www2.emg.umu.se/projects/biginst/andersn/WCN/ Fascículo 1. Dytiscidae: Methlinae-Hydroporinae. Fauna Archangelsky, M. 1992. El género Phaenonotum Sharp en philidae, Scirtidae), with additional notes on Scirtes ob- WCN_20110816.pdf de Agua Dulce de la República Argentina 37: 1-82. la Argentina (Coleoptera: Hydrophilidae). II. Reubicación longus Guerin-Meneville. Insecta Mundi 87: 1-5. NILSSON, A. N. 2013. A world catalogue of the family Dytisci- Trémouilles, E. R. 1998. Dytiscidae. In: Morrone, J.J. y S. de Hydroglobus puncticollis Bruch, 1915, dentro del gé- FERNÁNDEZ, L. A. & A. O. BACHMANN. 1998. Hydrophiloi- dae, or the diving beetles (Coleoptera, Adephaga). Ver- Coscarón (eds.), Biodiversidad de artrópodos argentinos. nero Phaenonotum. Revista de la Sociedad Entomológica dea. In: Morrone, E, J. J. & S. Coscarón (eds.), Biodiver- sion 1.I.2013. Umeå: distributed electronically as a PDF Una perspectiva biotaxonómica, La Plata, pp. 210-217. Argentina 51(1-4): 47-51. sidad de Artrópodos argentinos, Una perspectiva biotax- file by the author, 304 pp. Available on: http://www2.emg. TRÉMOUILLES, E. R. & A. O. BACHMANN. 1981. Distribución Archangelsky, M. 1999. Immature stages of Paracymus onómica, vol. 1, Ediciones Sur, La Plata, pp. 218-226. umu.se/projects/biginst/andersn/WCD_20130101.pdf del género Notaticus en la Argentina (Coleoptera, Dytisci- rufocinctus Bruch, 1915 and Enochrus (Methydrus) vul- FERNÁNDEZ, L. A., M. ARCHANGELSKY & V. MANZO. 2008. OLIVA, A., L. A. FERNÁNDEZ & A. O. BACHMANN. 2002. dae). Physis, sección B, 39(97): 101-102. garis (Steinheil, 1869) (Coleoptera: Hydrophilidae: Hydro- Coleópteros acuáticos y semiacuáticos del Parque Pro- Sinopsis de los Hydrophiloidea acuáticos de la Argentina TRÉMOUILLES, E. R., M. C. MICHAT & P. L. M. TORRES. philinae). Elytron 13: 87-99. vincial Salto Encantado y Valle del Cuñá Pirú (Misiones, (Insecta, Coleoptera). Monografías del Museo Argentino 2005. A synopsis of the South American Hydrovatus (Co- Archangelsky, M. 2002. Nuevas larvas de Hydrophilidae Argentina). Revista de la Sociedad Entomológica Argen- de Ciencias Naturales 2: 1-67. leoptera: Dytiscidae: Hydroporinae), with notes on habitat (Coleoptera: Hydrophiloidea): Hemiosus multimaculatus y tina 67(3-4): 87-98. PIC, M. 1922. Nouveautés diverses. Mélanges exotico-ento- and distribution, and a key to species. Revista de la Socie- Chaetarthria bruchi. Revista de la Sociedad Entomológica Gómez lutz, m. c., l. fernández & arturo i. kehr. mologiques 37: 4-7. dad Entomológica Argentina 64(1-2): 61-69. Argentina 61(3-4): 89-97. 2012. Coleópteros acuáticos de lagunas situadas en el PIC, M. 1928. Notes et descriptions. Mélanges exotico-ento- TRÉMOUILLES, E. R., A. OLIVA & A. O. BACHMANN. 1995. ARCHANGELSKY, M., V. MANZO, M. C. MICHAT & P. L. M. noroeste de la provincia de Corrientes, Argentina. Revista mologiques 51: 8-9. Insecta Coleoptera. In: Lopretto, E. C. & G. Tell (eds.), TORRES. 2009. Coleoptera. In: Domínguez, E. & H. R. de la Sociedad Entomológica Argentina 71(1-2): 73-85. POI DE NEIFF, A. 1983. Observaciones comparativas de la Ecosistemas de Aguas Continentales, Metodologías para Fernández (eds.), Macroinvertebrados bentónicos su- GROSSO, L. E. 1979. Contribución al conocimiento biológico mesofauna asociada a Pistia stratiotes L. (Araceae) en su Estudio, vol. 3, Ediciones Sur, La Plata, pp. 1133-1197. damericanos, Sistemática y biología, vol. 2, Fundación y sistemático de las especies de Noteridae algunos ambientes acuáticos permanentes y temporarios TRÉMOUILLES, E. R., P. L. M. TORRES & M. C. MICHAT. 2004. , Tucumán, pp. 411-468. (Coleoptera, Adephaga). Doctoral thesis N° 374. Facultad (Chaco, Argentina). Physis, sección B, 41(101): 95-102. New distributional records and comments for the species Balke, M., I. Ribera y A. P. Vogler. 2004. MtDNA phylog- de Ciencias Naturales y Museo, Universidad Nacional de POI DE NEIFF, A. & J. J. NEIFF. 1977. El pleuston de Pistia of the genus Queda Sharp 1882 (Coleoptera: Dytiscidae: eny and biogeography of Copelatinae, a highly diverse La Plata, La Plata, 166 pp. stratiotes de la laguna Barranqueras (Chaco, Argentina). Hydrovatini). Revista de la Sociedad Entomológica Argen- group of tropical diving beetles (Dytiscidae). Molecular GROSSO, L. E. 1993. Revisión de las especies neotropicales Ecosur 4: 69-101. tina 63(1-2): 38-40. Phylogenetics & Evolution 32: 866-880. del género Suphis Aubé, con la descripcion de S. ticky POI DE NEIFF, A. & J. J. NEIFF. 1984. Dinámica de la veg- VONDEL, B. J. VAN & P. J. SPANGLER. 2008. Revision of the Beutel, R. G. & R. E. Roughley. 2005. Gyrinidae. In: Beu- n.sp. (Coleoptera- Noteridae). Acta Zoológica Lilloana etación acuática flotante y su fauna en charcos tempo- Haliplidae of the Neotropical Region including Mexico tel, R. G. & A. B. Leschen (eds.), Coleoptera, Volume 1: 42(2): 225-238. rarios del sudeste del Chaco (Argentina). Physis, sección (Coleoptera: Haliplidae). Koleopterologische Rundschau Morphology and Systematics (Archostemata, Adephaga, Guérin-Méneville, F. E. 1861. Monographie du nouveau B, 42(103): 53-67. 78: 69-194. Myxophaga, Polyphaga partim), Handbuch der Zoologie genre Dicranopselaphus et description de quelques au- SHORT, A. E. Z. & M. Fikáček. 2013. Molecular phylogeny, YOUNG, F. N. 1974. Review of the predaceous water beetles Volume IV Arthropoda: Insecta, Part 38, De Gruyter, Berlin, tres Insectes coléoptères appartenant aussi a la famille evolution and classification of the Hydrophilidae (Coleop- of genus Anodocheilus (Coleoptera: Dytiscidae: Hydro- pp. 55-64. des Dascillides. Revue et magasin de zoologie pure et tera). Systematic Entomology. Online early. porinae). Occasional papers of the Museum of Zoology, Blackwelder R.E. 1944. Checklist of the coleopterous in- appliquée ser. 2, t. 13: 531-547. The Nature Conservancy (TNC), Fundación Vida Silvestre University of Michigan 670: 1-28. sects of Mexico, Central America, the West Indies, and KLAUSNITZER, B. 2009. Insecta: Coleoptera: Scirtidae, vol. Argentina (FVSA), Fundación para el Desarrollo Sustent- YOUNG, F. N. 1990. A review of classification of the water South America. Part 2. United States National Museum Spektrum Akademischer Verlag, Heidelberg. able del Chaco (DeSdel Chaco) & Wildife Conservation beetles of the New World genus Bidessonotus Régim- Bulletin 185: 189-341. KLAUSNITZER, B. 2012. Zur Kenntnis der Gattung Priono- Society Bolivia (WCS). 2005. Evaluación Ecorregional del bart (Coleoptera: Dytiscidae: Hydroporinae: Bidessini). BROWN, A., S. PACHECO & L. CRISTÓBAL. 2012. Bitácora. cyphon L. Redtenbacher 1858 sensu lato (Coleoptera, Gran Chaco Americano / Gran Chaco Americano Ecore- Quaestiones Entomologicae 26: 355-381. Los caminos del Chaco. Obras viales y paisajes de con- Scirtidae) aus Südamerika (181. Beitrag zur Kenntnis der servación en la región chaqueña. Ediciones del Subtrópi- Scirtidae). Linzer biologische Beiträge 44: 1177-1194. co, Tucumán. Kremen, C., R. K. Colwell, T. L. ERWIN, D. D. MURPHY, BRUCH, C. 1915. Catálogo sistemático de los coleópteros R. F. NOSS & M. A. SANJAYAN. 1993. Terrestrial de la República Argentina. Pars II. Familias: Haliplidae, assemblages: their use in conservation planning. Conser- Dytiscidae, Gyrinidae, Hydrophilidae y Staphylinidae. Re- vation Biology 7(4): 796-808. vista del Museo de La Plata 19: 174-526. Lawrence, J. F. & H. Yoshitomi. 2007. Nipponocyphon, BRUCH, C. 1927. Suplemento al catálogo sistemático de los a new Genus of Japanese Scirtidae (Coleoptera) and its coleópteros de la República Argentina. II. Addenda, cor- Phylogenetic Significance. Elytra 35: 507-527. rigenda y lista de especies. Physis 8: 537-553. LIBONATTI, M. L., M. C. MICHAT & P. L. M. TORRES. 2011. CHAMPION, G. C. 1897. Fam. Dascillidae. In: Waterhouse, Key to the subfamilies, tribes and genera of adult Dytisci- C., G. Horn & G. C. Champion (eds.), Biologia Centrali- dae of Argentina (Coleoptera: Adephaga). Revista de la Americana. Insecta Coleoptera, vol. 3, part 1, Taylor and Sociedad Entomológica Argentina 70(3-4): 317-336. Francis, London, pp. 586–662, pls. 26–27. LIBONATTI, M. L. & R. RUTA. 2013. Review of the Argentin-

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