Dexosarcophaga lopesi Dodge, 1968

Mello-Patiu, Cátia Antunes De, 2002, Revision of some Dexosarcophaga species described by R. Dodge (Diptera: Sarcophagidae), Zootaxa 122, pp. 1-16 : 8-9

Dexosarcophaga lopesi Dodge, 1968 ( Figs. 28­35 )

Dexosarcophaga lopesi Dodge, 1968: 430 . Type­locality: Panama, Barro Colorado Is.; male holotype, SEM. Ref.­ Lopes, 1974c: 520 (holotype examined).

Male – Total length = 8 mm.

Head – Fronto­orbital and parafacial plates gray with intense golden microtomentum, with a row of black setulae along eye margin; frontal vitta dark brown, anteriorly reddish; frons 0.22 X head width; frontal row of 11 bristles; 1 reclinate fronto­orbital bristle, proclinate absent; outer vertical bristle not differentiated from the postocular setae; gena gray with golden microtomentum and black setae; postgena gray with black setae; antenna dark brown, first flagellomere with gray microtomentum, pedicel 0.42 X as long as first flagellomere, arista long plumose on basal 1/2; palpus dark brown.

Thorax – Gray with golden microtomentum, more intensely in postpronotal area. Prosternum bare. Chaetotaxy: acrostichals 3 (weakly differentiated) + 1, dorsocentrals 3 + 4 (two posteriormost longer), intra­alars 2 + 2, supra­alars 2 + 3, postpronotals 3, postalars 2, notopleurals 4, scutellum with 2 strong marginals intercalated by 2 weaker ones, 1 small apical, discals 1, meropleurals 8­9, katepisternals 3 (in a line). Wing hyaline, R1 bare, R4+5 setulose in basal 1/2 to crossvein r­m, costal spine not differentiated, third costal sector without ventral setulae. Legs black, mid femur apically with posteroventral ctenidium (6 spines), mid tibia ventrally with 1 median setae [hind legs lost in the holotype].

Abdomen – Gray with the usual silver tesselation and slightly golden microtomentum laterally; T1+2–3 without median marginal bristles, T4 with a pair of median marginals; ST1­2 with long black hair­like setae.

Terminalia – Syntergosternite 7+8, epandrium and cercus dark brown with sparse gray microtomentum; epandrium with some differentiated dorsal bristles and syntergosternite 7+8 with 3 pairs of marginal bristles ( Fig. 28 ); cercus moderately curved forwards in lateral view ( Figs. 28, 29 ); surstylus clavate with elongated setae in apical half ( Fig. 28 ); gonopod with enlarged base and fine setae along ventral margin ( Figs. 30, 31 ); paramere narrow and slightly curved, with a strong bristle on anterior margin ( Figs. 30, 32 ); phallus and juxta similar to those of D. itaqua ( Figs. 30, 33, 34 ); lateral stylus long with simple base and dentate apex ( Figs. 33, 34 ); median stylus represented by a small, double, rugose lobe between the apices of the lateral styli ( Figs. 33, 34 ); vesica well sclerotized, laterally bearing a pair of small median apophyses, bifurcated at apical portion with convergent and pointed extremities seen in ventral view ( Figs. 33, 35 ).

Female – unknown.

Material examined – Panama. Barro Colorado Is., 1 male (holotype), 20.XI.1956, Rettenmeyers (SEM).

Distribution – NEOTROPICAL – Panama.

Remarks – The phallus of this species closely resembles that of D. transita and D. itaqua , the most noteworthy difference among them is the shape of the vesica, which has small lateral apophyses and convergent apical arms in D. lopesi ( Fig. 35 ). The ST5 of the holotype was not dissected to avoid damaging the type.

Figures

FIGURES 28 ­ 35. – Dexosarcophaga lopesi Dodge, male holotype; 28. syntergosternite 7 + 8, epandrium and cercus, lateral view; 29. apex of cercus, lateral view; 30. phallus and associated structures, lateral view; 31. gonopod; 32. paramere; 33. apex of phallus, lateral view; 34. apex of phallus without vesica, ventral view; 35. vesica, ventral view (bp = basiphallus; dp = distiphallus; go = gonopod; ju = juxta; ls = lateral stylus; ms = median stylus; pa = paramere; ve = vesica).