Dexosarcophaga currani ( Dodge, 1968 )

Mello-Patiu, Cátia Antunes De, 2002, Revision of some Dexosarcophaga species described by R. Dodge (Diptera: Sarcophagidae), Zootaxa 122, pp. 1-16 : 12-14

Dexosarcophaga currani ( Dodge, 1968) ( Figs. 51­58 )

Dexosarcophaga currani Dodge, 1968: 428 . Type­locality: Panama, Barro Colorado Is.; male holotype, SEM. Ref.­ Lopes, 1974c: 518 ­519 (HT examined); Mello, 1986: 351 (cit.).

Male – Total length = 7 mm.

Head – Fronto­orbital and parafacial plates gray with golden microtomentum, with a row of black setulae along eye margin; frontal vitta black; frons 0.19 X head width; frontal row of 8­9 bristles; 1 reclinate fronto­orbital bristle, proclinate absent; outer vertical bristle not differentiated from the postocular setae; gena and postgena gray with black setae; antenna dark brown, first flagellomere with gray microtomentum, pedicel 0.32 X as long as first flagellomere, arista long plumose on basal 2/3; palpus dark brown with black apex.

Thorax – Gray with sparse golden microtomentum in postpronotal area. Prosternum with scattered setulae in posterior part. Chaetotaxy: acrostichals 3 (weakly differentiated) + 1, dorsocentrals 3 + 3, intra­alars 2 + 2, supra­alars 2 + 3, postpronotals 3, postalars 2, notopleurals 4, scutellum with 2 strong marginals bristles and 1 small median one, discals 1, apical absent, meropleurals 7­8, katepisternals 3 (in a line). Wing hyaline, R1 bare, R4+5 setulose in basal 2/3 to crossvein r­m, costal spine not differentiated. Legs black, mid femur apically with posteroventral ctenidium (6 spines), mid tibia without ventral bristles; hind tibia with 1 anteroventral bristle; hind trochanter with long ventral hair­like setae.

Abdomen – Gray with the usual silver tessellation; T1+2–3 without median marginal bristles, T4 with a pair of median marginals; ST1­4 with long and dense black hair­like setae; ST5 V­shaped, with black setae in posterior half ( Fig. 51 ).

Terminalia – Syntergosternite 7+8, epandrium and cercus black with sparse yellowish gray microtomentum; epandrium with some differentiated dorsal bristles and syntergosternite 7+8 with 3 pairs of marginal bristles (according to Lopes 1974c: 518); cercus curved forwards with pointed apex ( Fig. 52 ); surstylus clavate with elongated base and apical setae (according to Lopes 1974c: 518, fig. 34); gonopod curved, with enlarged base and pointed apex ( Figs. 53, 54 ); paramere slightly curved, with narrow apex, and a strong median bristle on anterior margin ( Figs. 53, 55 ); phallus with a small but distinct basiphallus, distiphallus membranous distally; juxta membranous, reduced, not completely protecting the stylar apices ( Figs. 53, 56 ); lateral stylus long, with dentate and free apex, base bent outwards ( Figs. 56, 57 ); median stylus long and sclerotized with free apex ( Figs. 56, 57 ); vesica small and simple and with proximal region membranous ( Figs. 56, 58 ).

Female – unknown.

Material examined – Panama. Barro Colorado Is., 1 male (holotype), 12.II.1955, No 834, C. W. Rettenmeyer (SEM).

Distribution – NEOTROPICAL – Panama.

Remarks – The phallic structure of D. currani closely resembles that of D. avispaensis Mello, 1986 , specifically by the reduced and membranous juxta, the long median stylus and the long lateral styli with bent base. The species is distinguished mainly by the smaller and more simple vesica.

Figures

FIGURES 51 ­ 58. – Dexosarcophaga currani (Dodge), male holotype; 51. sternite 5; 52. apex of cercus, lateral view; 53. phallus and associated structures, lateral view; 54. gonopod; 55. paramere; 56. apex of phallus, lateral view; 57. apex of phallus without vesica, ventral view; 58. vesica, ventral view (bp = basiphallus; dp = distiphallus; go = gonopod; ju = juxta; ls = lateral stylus; ms = median stylus; pa = paramere; ve = vesica).