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Hemiptera: Heteroptera: Aenictopecheidae) from Ecuador, and Morphological Notes

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Hemiptera: Heteroptera: Aenictopecheidae) from Ecuador, and Morphological Notes PROC. ENTOMOL. SOC. WASH. 110(4), 2008, pp. 1220–1232 A NEW SPECIES OF TORNOCRUSUS (HEMIPTERA: HETEROPTERA: AENICTOPECHEIDAE) FROM ECUADOR, AND MORPHOLOGICAL NOTES PAVEL Sˇ TYS AND PETR BANˇ ARˇ (PSˇ) Charles University in Prague, Faculty of Science, Department of Zoology, Vinicˇna´ 7, CZ-128 44 Praha 2, Czech Republic (e-mail: [email protected]); (PB) Moravian Museum in Brno, Department of Entomology, Hviezdoslavova 29a, CZ- 627 00 Brno, Czech Republic (e-mail: [email protected]) Abstract.—Tornocrusus lattini Sˇ tys and Banˇarˇ n. sp. (Hemiptera: Heteroptera: Enicocephalomorpha: Aenictopecheidae: Aenictopecheinae) is described from Ecuador (-, U) and differentiated from other species of the genus. The species is characterized by several autapomorphies; the most important being the asymmetry of female first valvulae—the first somatic asymmetry found in the Enicocephalo- morpha. The forewings are characterized by presence of remigial CuA2 and claval AP, features here reported for the first time, but possibly overlooked in other Aenictopecheinae. Key Words: taxonomy, forewing venation, foreleg architecture, male and female genitalia The genus Tornocrusus Kritsky, 1977 topecheidae is a relic basal group of the (Enicocephalomorpha: Aenictopecheidae: true bugs and, therefore, any new struc- Aenictopecheinae; see Sˇtys 1995) was tural observations on it are of importance, established by Kritsky (1977) for an but that no comparative treatment is insufficiently described species, T. stysi attempted here. The new species described Kritsky 1977 from Costa Rica. The genus below differs in several important respects was revised by Wygodzinsky and Schmidt from Tornocrusus as characterized by (1991), who added, thoroughly described, Wygodzinsky and Schmidt (1991), but and illustrated six other new continental shares with the genus its general facies, Neotropical species, briefly mentioned basic features of forewing and hindwing one undescribed one, and transferred venation, basic features of male and Lomagostus aguilari Villiers 1978 from female terminalia, and several important Guadeloupe (Villiers 1978) into the genus. synapomorphies (pattern of foreleg arma- Since then, Sˇtys (2002) listed and keyed ture; inner (5 anterior) foretarsal claws the genus and considered it in a biogeo- extremely long, narrowing and filiform, graphical context (2008). In this paper, we whereas outer (5 posterior) foretarsal describe a new species of Tornocrusus claw abbreviated to reduced; mid- and from Ecuador, add observations to its hind tibiae with one apical comb each and generic diagnosis, list and compare all the one spinifiorm seta situated outside the known species, and add data on morphol- comb; propleural region reduced). There- ogy. It should be understood that Aenic- fore, prior to necessary comparative VOLUME 110, NUMBER 4 1221 morphological studies, we prefer to be Tornocrusus Kritsky, 1977 conservative, as we did in the recent case Tornocrusus Kritsky, 1977: 161. Type of a new Systelloderes Blanchard 1852 species: Tornocrusus stysi Kritsky, ˇ from New Caledonia (cf. Stys and Banˇarˇ 1977, by original designation. 2007), and retain the new species within Tornocrusus: Wygodzinsky and Schmidt, Tornocrusus. 1991: 51–85; Sˇtys 2002: 350, 362, 363. Dedication.—This paper, as well as the name of a new species of Aenicto- The following notes pertain to the pecheidae (Heteroptera: Enicocephalo- generic diagnosis (character states not morpha) hereby described, is dedicated mentioned by Wygodzinsky and Schmidt to Jack Lattin on the occasion of his 80th 1991, or found to be at variance). birthday, in recognition of his contribu- (1) The elevated interocellar part of the tions to the knowledge of Heteroptera, posterior lobe of the head in Torno- and, especially, for inspiring and attract- crusus spp. should be covered by a ing a number of students, many of which mat of ‘‘microtrichiae’’ (5 probably are nowadays eminent hemipterists. And short macrotrichia; PSˇ&JB), giving for being a good, long-standing friend— the area a dull appearance that Pavel. contrasts with the shiny surface of the rest of head (cf. Wygodzinsky MATERIALS AND METHODS and Schmidt 1991: 52, fig. 39A). Diagnostic characters.—The character This autapomorphic generic charac- states of the new species below described ter is missing in T. lattini sp.n. are compared with those of other Torno- (2) In the Enicocephalomorpha, the crusus species treated (excepting the longitudinal axis of the grasping often unavailable male or female) by foretibia coincides with that of the Wygodzinsky and Schmidt (1991). How- foretarsus, or the latter is adverging ever, we are not attempting a revision of to the distal edge of the foretibia. the genus, and, consequently, we are not However, the axes concerned are confident about which character states distinctly and strikingly divergent found to be at variance with Wygod- in T. lattini sp.n. and, consequently, zinsky and Schmidt (1991) are autapo- the long filiform claw of the fore- morphies of the new species and which tarsus is directed outwards (laterad) are based on overly generalization and instead of inwards (mesad). The incorrect or incomplete observations by tarsus cum posttarsus appears to Wygodzinsky and Schmidt (1991). have undergone torsion of nearly Forewing venation. Terminology ap- 180u. It is possibly an autapomorphy plied to forewing veins and cells is shown of T. lattini because the feature was in Fig. 11 and is based largely on that observed in all four specimens but used by Wygodzinsky and Schmidt was not mentioned or illustrated in (1991: fig. 6A) taken from Sˇtys (1980). any Tornocrusus species by Wygod- The names of cells and symbols used for zinsky and Schmidt (1991). the venation of clavus follow those of an (3) All FWs of T. lattini are provided unpublished study by J.Kukalova´-Peck with a longitudinal vein—called and P. Sˇtys, and are self-explanatory. provisionally CuA2 by us. It is Abbreviations.—FW—forewing; L— diverging from the stem M + Cu at length; l—left; max—maximum (maxi- about the level of apex of the claval mal); min—minimum (minimal); r— cell, runs parallel to the claval right; W—width. furrow and disappears proximad to 1222 PROCEEDINGS OF THE ENTOMOLOGICAL SOCIETY OF WASHINGTON cu-aa. Wygodzinsky and Schmidt brown. Labium brown, segments 3 and (1991: figs 45F, 46C, 47H, 49N, 4 much paler apically; legs and abdomen 51H I, 53A, 55G) did not illustrate light brown. The external (posterior) face this feature in any Tornocrusus of forefemur and fore tibia of female species. No author studying the covered by greyish circular matt spots, aenictopecheids or enicocephalids some of them associated with a particu- has mentioned or illustrated such a lar macrotrichium, others without such vein (see Discussion). an association. Head and legs lustrous, rest of body Tornocrusus lattini Sˇ tys and Banˇarˇ, matt. Anterior lobe of head with small new species cuticular granules; posterior and dorsal faces of forefemur each with 1 row of Type locality.—Ecuador, Napo Prov- larger cuticular granules. Middle third of ince, NW of El Chaco, 1680–1690 m anterior face of foretibia, anteroventral a.s.l. Type material (locality labels cited part of forefemur and posterodorsal face exactly). Holotype: male—Ecuador, of forecoxa with numerous rows of Prov. Napo (21) 4.4 km NW of EL tilelike cuticular processes, resembling CHACO, S 00u189480 W77u509210 serrate rasping files. 28.xi.2006; 1680 m, YPT, M. Fika´cˇek & Vestiture yellowish. Setae on all faces J. Skuhrovec lgt. Cardmounted holotype of head semierect, curved anterad, longer to be deposited in the collection of on dorsal face of anterior lobe. Collum QCAZ Museum of the Pontifica Uni- covered with long, prominent setae on versidad Catolica del Ecuador, Quito, dorsal face and with shorter, semierect Ecuador. setae on lateral and ventral faces; all Paratypes: one male, same data as setae on collum directed anterad. Rest of holotype, one male and one female— pronotum and mesoscutellum with Ecuador, Prov. Napo (20) 6.5 km NW of prominent setae, directed caudad. Abdo- EL CHACO, S 00u189310 W77u509420 men regularly covered with semierect 28.xi.2006; 1680 m, sifting, M. Fika´cˇek setae, without long macrotrichia, with & J. Skuhrovec lgt., deposited in collec- exception of terminalia (see below; tions of Pavel Sˇtys and Petr Banˇarˇ, Figs. 19, 20). Antenna: all segments with preserved in alcohol. semierect, dense setae, distal part of Etymology.—lattini, a patronym de- segment 2 with several (6–8) longer, rived from the surname of Prof. John outstanding setae, as long as segment (Jack) D. Lattin (Corvallis, Oregon), an diameter; segments 3 and 4 with long eminent American hemipterist. (segment 3 with 12–15, segment 4 with ca Habitat and collecting methods.— 20) long, fine outstanding setae about Two specimens of T. lattini were sifted twice as long as segment diameter. from forest litter, and two specimens Labium with dense, semierect pilosity, were caught in a yellow pan trap, the first longer on dorsal face. Foreleg with 2 published example for enicocephalomor- types of setae: (a) long, prominent phans. trichobothria-like setae (tr-setae); (b) Description.—Measurements. Total shorter, semierect, denser setae. Vestiture length from 3.45 in male to 3.75 in female of foreleg markedly more dense in males. (other measurements see Table 1). Coxa and trochanter antero- and postero- Coloration and sculpture. Head, pro- ventrally with numerous semierect setae, notum, scutellum and FW dark brown. coxa
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