Uruleskia Townsend (Diptera, Tachinidae): Redescription of the Type-Species, Description of New Species and Key to Identification
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Volume 52(7):93‑102, 2012 URULESKIA TOWNSEND (DIPTERA, TACHINIDAE): REDESCRIPTION OF THE TYPE-SPECIES, DESCRIPTION OF NEW SPECIES AND KEY TO IDENTIFICATION 1 ENIO NUNEZ 2,3 MÁRCIA S. COURI ABSTRACT The unique species of Uruleskia Townsend, 1934 (Diptera, Tachinidae) – U. aurescens Townsend, 1934 – is recorded only from Brazil. Its holotype and paratypes are herein redescribed with illustration of male terminalia. The examination of a material mainly from Instituto Na- cional de Pesquisa da Amazônia (INPA, Manaus, Brazil) enabled the description of four new species – Uruleskia alba sp. nov., Uruleskia extremipilosa sp. nov., Uruleskia infima sp. nov. and Uruleskia parcapilosa sp. nov. A key to the identification of all five species is also presented. Key-Words: Identification key; New species; Revision; Taxonomy. INTRODUCTION Washington, USA (USNM). All other material relat- ed to the four new species described were loaned from Uruleskia Townsend, 1934 (Diptera, Tachini- Instituto Nacional de Pesquisa da Amazonia, Manaus, dae) is a neotropical genus of Leskiini known only Brazil (INPA), where the types are now deposited. from its type-species, U. aurescens Townsend. After Some paratypes housed in Museu Nacional, Universi- the original description no other information was dade Federal do Rio de Janeiro, Rio de Janeiro, Brazil added to the knowledge of this species and genus. (MNRJ) are indicated in Material Examined. The opportunity to study a copious mate- The male terminalia were treated with potas- rial mainly from Instituto Nacional de Pesquisas da sium hidroxid (KOH 10%), neutralized with ace- Amazônia, Manaus, Brazil (INPA) conducted to the tic acid (50%), placed through an alchoolic series description of four new species.The type material of (70%, 90%) and then glycerin. After this treatment U. aurescens was also examined and redescribed, and a they were dissected, drawn and posteriorly put into key to identification for all the five species is provided. a microvial with glycerin pinned with the respective specimen. The drawings were made with a Wild M3C MATERIAL AND METHODS stereoscopic microscopic and a Leica DMLS micro- scopic, both with camera lucida. The type-material of U. aurescens examined is The terminology adopted in the decriptions are deposited at National Museum of Natural History, the same used in O’Hara (2002). 1. Universidade Severino Sombra. Rua Expedicionário Oswaldo de Almeida Ramos, 280, Centro, 27700-000, Vassouras, RJ, Brasil. 2. Museu Nacional, Universidade Federal do Rio de Janeiro. Quinta da Boa Vista, 20940-040, Rio de Janeiro, RJ, Brasil. 3. CNPq fellow. 94 Nunez, E. & Couri, M.S.: Revision of URULESKIA Rondani RESULTS dark brown area around setae inserctions; epandrium high arched; hypandrium not fusioned on its dorsal Uruleskia Townsend, 1934 apex; cerci in lateral view well curved inwards at mid- dle; surstyli with microtrichiae on its ventral surface; Uruleskia Townsend, 1934:397. Type species: distiphalus tapering from basis to apex and with lat- Uruleskia aurescens Townsend (original desig- eral arms short; ejaculatory apodeme fan-like. nation); Townsend, 1936:65 (key); Townsend, 1939:246-247 (diagnosis); Guimarães, 1971:120 (catalogue). Key to Uruleskia species Recognition: General colour golden yellow; total 1. Wing vein R1 bare, or at least basally setulose on length 4.0-9.0 mm. dorsal surface ..................................................2 – Wing vein R1 entirely setulose on dorsal surface, Head: white with silvery or golden pruinosity; frontal or at least on its apical half on dorsal surface ...3 vitta yellow or brown; dichoptic; eyes bare or near- 2. Wing vein R1 bare on dorsal surface [Brazil: Ama- ly so; antenna yellow; scape erected and very close; zonas, Pará, Rondônia and Goiás] ..................... arista slightly plumose; frontal row of setae ending a ......................................U. aurescens Townsend little below the level of antennal insertion; 1-4 setulae – Wing vein R1 setulose only basally on dorsal sur- above the vibrissa; face visible on profile; proboscis face [Brazil: Amazonas] ...U. parcapilosa sp. nov. medium-sized, mentum never surpassing head height; 3. Wing vein R1 entirely setulose on dorsal surface labella small; palpus similar in length with antenna (Fig. 16); palpus shorter than antenna; procli- (a little shorter in U. infima sp. nov.); occiput with nate and reclinate orbital setae present in both white pruinosity, upper half black on ground colour, males and females [Brazil: Amazonas] ............... otherwise white; beard with white setulae. ............................................. U. infima sp. nov. – Wing vein R1 setulose only apically (Fig. 7) on Thorax: scutum brown with golden pruinosity; no- dorsal surface; palpus at least with the same topleurals 2; supra-alars 3, the second one the larg- length of antenna; proclinate and reclinate or- est; postalars 2; prosternum bare; pleura yellowish on bital setae present only in females ...................4 anterior half, otherwise brown, covered with white 4. Fronto-orbital plate and parafacial, mainly in and golden pruinosity and with yellow long setulae; males, with golden pruinosity [Brazil: Roraima, proepisternum with l seta, bare above; 1 proepimeral Amazonas and Rondônia] ................................. seta; katepimeron usually setulose; katepisternals 2:1; ....................................U. extremipilosa sp. nov. anepisternals 5-7; merals 5-11. Wing vein R1 bare or – Fronto-orbital plate and parafacial white with with dorsal setulae on base, apex or on its entire exten- silvery pruinosity, sometimes with golden pru- sion; vein R4+5 setulose dorsally from base to at least inosity near the vertex [Brazil: Amazonas and half way to crossvein r-m and rarely beyond it; cell Rondônia] ................................U. alba sp. nov. r4+5 opened just before wing apex. Legs not very long with medial surface of fore coxa entirely bare; fore femur with one anterodorsal, one posterodorsal and Uruleskia aurescens Townsend, 1934 one posteroventral row of setae; fore tibia with 1-2 (Figures 1‑5) long posterior setae on middle third; hind femur with one anterodorsal row of setae and 2 posterodorsal se- Uruleskia aurescens Townsend, 1934:397 (descrip- tae on apical third; claw and pulvillus well developed tion of male and female); Guimarães 1971:120 in males (except in Uruleskia infima sp. nov.). (catalogue). Abdomen: conic in both sexes; yellow and/or golden, Diagnosis: parafacial white and fronto-orbital plate en- median apical brown spots dorsally present or absent tirely or partially golden; 10-16 pairs of frontal setae and usually with brownish spots laterally on T3 to T5; in males, 7-10 pairs in females, 2-4 pairs below level median marginal setae absent on T3; marginal row of of antennal insertion; inner and outer verticals pres- setae present on T4 and T5. ent; proboscis length 1.0-1.2 times the head height; scutum with golden pruinosity; wing vein R1 bare on Male terminalia: sternite 5 square, with a “V” shaped dorsal surface; R4+5 setulose from base to crossvein median cleft setulose on margins and usually with a r-m on dorsal surface; scutellum with one pair of basal Papéis Avulsos de Zoologia, 52(7), 2012 95 setae, one pair of subapicals and one pair of short dis- inward at middle (Fig. 4); pregonite triangular in lat- cals; abdomen yellow with brown spots laterally on T4 eral view with 2 or 3 microtrichiae; postgonite narrow and T5, rarely on T3; small median apical brown spots in lateral view, curved downwards apically (Fig. 5). dorsally on T3 and T4 in few specimens examined. Female: Differs from male as follows: frons 0.25 of Redescription: Male. Body length: 6.0-9.0 mm; wing: head width at the level of anterior ocellus; 2 pairs of 5.0-7.5 mm. proclinate orbital setae and 2 pairs of reclinate orbital setae; outer verticals more developed; palpus slightly Head: white with parafrontal entirely or partially swollen at tip. golden; eyes almost reaching the level of the vibrissa; 2-4 pairs of frontals below the level of antennal in- Type material (all seen): Holotype ♂. BRAZIL. Pará: sertion; ocellar setae short and similar in length with Urucurituba, Rio Tapajós, 03-13.iv.1937, Townsend the shorter frontals; frons 0.15 of head width at the det. (USNM). Paratypes. 3 ♀♀, same data as holo- level of anterior ocellus; inner vertical seta present and type (USNM). outer almost indistint from the postoculars; flagello- mere slightly brown, yellow on base; proboscis length Other examined material: BRAZIL. Amazonas: 1.0-1.2 times the head height (Fig. 1); vibrissa long; 26 km NE de Manaus, Reserva Ducke, armadilha 5-8 pairs of subvibrissal setulae, shorter near vibrissa. suspensa 10 m, 1 ♂, 03.xi.1988, Rafael, J.A. col. (MNRJ); armadilha suspensa 20 m, 1 ♂, 03.xi.1988, Thorax: scutum with golden pruinosity; acrostichals Rafael, J.A. col. (INPA); 1 ♂, 10.xi.1988, Rafael, 1+1 or 2+1; dorsocentrals 2+3 or 3+3; intra-alars 1+3; J.A. col. (INPA); 1 ♀, 28.ix.1981, Rafael, J.A. col. post-pronotals 2; scutellum yellowish with golden (INPA); 1 ♀, 05.x.1981, Rafael, J.A. col. (INPA); pruinosity; one pair of basal setae; one of subapicals 1 ♀, 09.ix.1986, Aquino, L.S. & Barbosa, U. col. and one of short discals. Wing and calypter hyaline, (INPA); 1 ♀, 07-21.xi. 1994, Rafael, J.A. & Vidal, vein R1 bare on dorsal surface and vein R4+5 setulose J. col. (INPA); Malaise, 5 ♀♀, 01-10.iii.1995, Bar- from base to crossvein r-m on dorsal surface (Fig. 2). bosa, M.G.v. col. (INPA); Fazenda Porto Alegre, Legs with coxa, trochanter, femur and tibia yellow; 02°23’00”S-59°56’35”W, armadilha Pennsilvania, hind tibia usually with some apical brownish areas; [KCN], luz negra, 1 ♂, 14-15.viii.1996, Hutchings, tarsus brownish; fore tibia with one anterodorsal row R.W.H. & Hutchings, R.S.G. col. (MNRJ); Parque of short setae; 1 dorsal subapical seta and 1 postero- Nacional do Jaú, 01°53’04”S-61°35’11”W, armadil- ventral apical seta; mid femur with 1 anterior seta on ha suspensa 20 m, 1 ♀, 08-16.iv.2001, Henriques, middle third; 2-3 long posteroventral setae on basal A.L.