Drosophila (Drosophila) nigrodumosa Wasserman & Fontdevila, 1990

Vilela, Carlos Ribeiro, 2017, The male terminalia of seven American species of Drosophila (Diptera, Drosophilidae), Alpine Entomology 1, pp. 17-31 : 17

Drosophila (Drosophila) nigrodumosa Wasserman & Fontdevila

Fig. 4A-D

Drosophila (Drosophila) nigrodumosa Wasserman & Fontdevila in Fontdevila et al., 1990: 446.

Drosophila Drosophila nigrodumosa Species "from Venezuela": Wasserman 1982a: 95; Wasserman 1982b: 54, 59.

Non-type material.

strain 514.8 (25 km S of Mérida, Mérida, Venezuela) [nickname: bushy tail], 1979: 2 ♂♂ (dissected) plus 3 ♀♀ (MZSP); 1 ♂, 3 ♀♀ (AMNH).

Male terminalia.

Epandrium (Fig. 4A ) posteriorly microtrichose, bearing about 1 upper and 11 lower setae; ventral lobe remarkably concave on ventral margin, distally pointed sharply, partially covering surstylus. Cercus (Fig. 4A ) mostly microtrichose, anteromedially fused to epandrium. Surstylus not microtrichose, with about 9 cone-shaped prensisetae in apical row, ca. 20 conspicuous outer cone-shaped setae, 2 outer and 4 inner setae of usual shape. Decasternum as in Fig. 4A . Hypandrium (Fig. 4A ) about 1 ½ longer than epandrium, anterior margin convex; posterior hypandrial process and dorsal arch absent; gonopod not microtrichose, connected to paraphysis by membranous tissue, bearing one long seta on anterior inner margin. Aedeagus long (Fig. 4B-D ), subdistally expanded dorsoventrally, bifid and slightly turned dorsad at dorsal tip (Fig. 4D ); subapically microtrichose at ventral margin; dorsal cleft ca. 2/3 length of aedeagus (Fig. 4C ); paraphysis not microtrichose, connected to gonopod by membranous tissue, narrow anteriorly, wide distally, submedially bearing 1-2 setulae dorsally. Aedeagal apodeme curved ventrad, laterally flattened, ca. 1/3 aedeagus length and fused to it, posterodorsally bifid (Fig. 4C ). Ventral rod dorsoventrally flattened, completely fused to aedeagal apodeme.

Figures

Figure 4. Drosophila nigrodumosa Wasserman & Fontdevila in Fontdevila et al., 1990 (Drosophila repleta group, Drosophila mulleri subgroup, Drosophila mulleri complex). Strain 514.8 at NDSRC (type strain), from Merida, Venezuela, male terminalia (MZSP). A, epandrium, cerci, surstyli, hypandrium, gonopods, aedeagus, paraphyses and aedeagal apodeme, oblique posterior view. B-D, aedeagus, paraphyses and aedeagal apodeme, three views. B, dorsal. C, oblique dorsal. D, right lateral. Scale bar: 0.1 mm.