Drosophila sturtevanti Duda, 1927

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 : 533

Drosophila sturtevanti Duda, 1927

( Fig. 8 )

Non-type material. Strains STV-1 (Matão, São Paulo, Brazil): 47 males dissected; STV-2 (Aguaí, Santa Catarina, Brazil): 14 males dissected; and STV-3 (Ribeirão da Ilha, Santa Catarina, Brazil): 10 males dissected .

Male terminalia. The aedeagal apex resembles a horn, where the phallotrema is found ( Fig. 8A–C ). The ventral postgonite is chitinized, rigid and smooth and the base of this structure together with the upper ventral region of the aedeagus have scales ( Fig. 8B, C ). The lower base of the aedeagus displays a “caudal” projection ( Fig. 8B ).

Figures

FIGURE 8. Scanning electron micrographs of D. sturtevanti. male terminalia (A) Ventral and dorsal view of terminalia (630 x magnification). (B) Lateral view of aedeagus (1.490 x magnification). Arrow heads = “caudal” projection. Image from Madi- Ravazzi et al. (2021). (C) Dorsal view of aedeagus and middle ventral region of epandrium (1.470 x magnification). The imagens are from STV-1 (A, C) and STV-3 (B) strains. Abbreviations in Table 1.