Drosophila spinipes

Grimaldi, David A. & Jones, Lance E., 2020, A Revision of the Drosophila spinipes Species Group (Diptera: Drosophilidae), Zootaxa 4809 (1), pp. 1-28 : 24-25

Key to Described Species of the Drosophila spinipes Species Group

(couplets 4 and after require male genitalia)

1 Notum dark yellowish (vs. black-brown); Seychelles.............................................. spinipes Lamb

- Notum blackish-brown; various localities in Madagascar and Africa............................................. 2

2 Katepisternum dark blackish-brown, with light pollinosity (fig. 3C); protarsal spines almost equal in size (fig. 5D)............................................................................................. nigrospinipes n. sp.

- Katepisternum yellowish (e.g., figs. 3A, B), protarsal spines unequal in size, at least on tarsomere 1 (e.g., figs. 5A–C)..... 3

3 Protarsal spines on tarsomere 2 short, almost equal in size, curved at apex (fig. 5A)...................... jambiya n. sp.

- Protarsal spines on tarsomere 2 alternating long and short, fang-shaped........................................... 4

4 Anterior portion of hypandrium broader than posterior portion, curved laterally; aedeagus bare (figs. 9C, 12F)................................................................................................. hypandrilata n. sp.

- Anterior portion of hypandrium as wide as or distinctly narrower than posterior portion, not curved laterally; aedeagus with spicules, coarse or fine serrations, microtrichia or other ornamentation........................................... 5

5 Distiphallus with 2 opposing, dorsomedial rows of coarse, saw-like serrations. (figs. 12J–L)............. phalloserra n. sp.

- Distiphallus with at most fine scales or serrations in this area................................................... 6

6 Hypandrium distinctly constricted at anterior end (fig. 9D, E); distiphallus with long, dense microtrichia/spicules medially (figs. 12B–D); Madagascar................................................................. malagasy n. sp.

- Anterior end of hypandrium narrowed or not, but not distinctly constricted........................................ 7

7 Aedeagus in lateral view bulbous, large, distiphallus about half the size of aedeagus (fig. 12H)............ freidbergi n. sp.

- Aedeagus in lateral view bulbous only at distal fifth (e.g figs. 12A–E)........................................... 8

8 Aedeagus 2.6x length of aedeagal apodeme (fig. 12E)........................................ cameroonensis n. sp.

- Aedeagus 1.8x length of aedeagal apodeme (fig. 12A)................................................ suma Burla