Drosophila austrosaltans Spassky, 1957

Roman, Bruna Emilia & Madi-Ravazzi, Lilian, 2021, Male terminalia morphology of sixteen species of the Drosophila saltans group Sturtevant (Diptera, Drosophilidae), Zootaxa 5061 (3), pp. 523-544 : 528-529

Drosophila austrosaltans Spassky, 1957

( Fig. 4 )

Non-type material. Strains A 1 (Matão, São Paulo, Brazil): 32 males dissected; and A2 (Nova Granada, São Paulo, Brazil): 30 males dissected .

Male terminalia. The median gonocoxites of the hypandrium are square and they present a hypandrial bristle on each side ( Fig. 4A, C ). The aedeagal apex displays a punctiform dorsal protuberance, called aedeagal apical crest ( Fig. 4B, C ); and this structure as well as the aedeagal apex are covered by scales ( Fig. 4B ). The aedeagal sheath also differs from the species mentioned above, because it has several serrated and strongly chitinized crests, arranged longitudinally, dorsally, and laterally ( Fig. 4B, D ). The ventral postgonites extend along the ventral region of the aedeagus, being parallel in the initial portion and divergent at the end ( Fig. 4C, D ). The aedeagal ventral processes are thin and arranged parallel to each other ( Fig. 4D ). The pregonites are short and each pregonite displays two bristles ( Fig. 4D ).

Figures

FIGURE 4. Scanning electron micrographs of D. austrosaltans male terminalia. (A) Ventral and dorsal view of terminalia (512 x magnification). (B) Ventral view of aedeagus (1.310 x de magnification). (C) Ventral view of aedeagus and hypandrium (676 x magnification). (D) Lateral view of aedeagus and phallapodeme. Arrow heads = chitinized crests on the aedeagal sheath (707 x magnification). The imagens are from A2 strain. Abbreviations in Table 1.