Drosophila (Drosophila) sticta Wheeler, 1957

Vilela, Carlos Ribeiro, 2017, The male terminalia of seven American species of Drosophila (Diptera, Drosophilidae), Alpine Entomology 1, pp. 17-31 : 18

Drosophila (Drosophila) sticta Wheeler

Fig. 8A-J

Drosophila (Drosophila) sticta Wheeler, 1957: 96. undetermined/unidentified species of the Drosophila tripunctata species group: Vilela 1984: 63, 64.

Male holotype.

Double mounted to a point, labelled: "Lancetilla 51.15 / Apr 4, 54 WBHeed / Rep. de Honduras / HOLOTYPE [red label] / Drosophila sticta Wheeler", deposited in NMNH.

Male terminalia.

Epandrium (Fig. 8A ) dorsodistally microtrichose, with ca. 2 upper and 8 lower setae; ventral lobe posteriorly dorsally membranous, not covering surstylus. Cercus slightly microtrichose on dorsomedial area, linked to epandrium by membranous tissue. Surstylus microtrichose distally on central area, with about 8-9 cone-shaped prensisetae, 4-5 outer and 9-13 inner setae. Decasternum as in Fig. 8B . Hypandrium (Fig. 8C-E ) longer than epandrium, anterior margin convex; posterior hypandrial process absent; dorsal arch vestigial, not projected posterad; gonopod not microtrichose, fused to paraphysis, bearing 1-2 long setae on anterior inner margin. Aedeagus (Fig. 8F-J ) apically trifid (in dorsal and ventral views, Fig. 8F, J ), subapically dilated; the dilatation with a pair of ventral spurs and a dorsal membranous area covered with tiny spines (Fig. 8F-J ); dorsal cleft reduced to a small anterior opening (Fig. 8F, G ); paraphysis long, conspicuously narrow, slightly widening towards distal end, not microtrichose, fused to gonopod, submedially bearing two setulae on anterior inner surface (Fig. 8E ). Aedeagal apodeme 1/3 aedeagus length and fused to it, rod-shaped, posterodorsally bifid (Fig. 8G ). Ventral rod vestigial (Fig. 8I, J ).

Figures

Figure 8. Drosophila sticta Wheeler, 1957 (Drosophila sticta group). Holotype from Lancetilla, Honduras, male terminalia (NMNH). A, epandrium, cerci, surstyli and decasternum, oblique posterior view. B, surstyli and decasternum, posterior view. C-E, hypandrium, gonopods + paraphyses, three views. C, posterior view. D, oblique posterior. E, left lateral. F-J, aedeagus and aedeagal apodeme, several views from dorsal through ventral. Scale bar: 0.1 mm.