Drosophila

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

Drosophila sp. D

Figs. 5G , 8G , 10D, 10K , 11K , 12G

Specimen: Male , HS-03: “ Togo: Région des Plateaux, Abriwa–Nko, 7°37’18” N, 0° 36’ 13” E, 310 m., Tg 1904, M. v.Tschirnaus, 24.4.2008.” Genitalia dissected by DG; in AMNH .

A dissected male with genitalia and some other structures indicating a different species from D. suma , but the head on the unique specimen has been lost, making it too partial to fully diagnose. Aedeagus apically narrow, with fine scales and central microtrichia/spicules; aedeagus in lateral view significantly thicker than in D. suma ; subepandrial sclerite π-shaped; profemur particularly short relative to the mid-femur (0.65, vs. ca. 0.80). Measurements: Head [lost]. Thorax: ThL 0.78 mm.; UPS/LHS 0.79; LHS/ThL 0.24; AKE/PKE 0.52; LF1/LF2 0.65.

Figures

FIGURE 5. Protarsi of representative species in the Drosophila spinipes group, mesolateral view. Homologous spines are numbered (note spine 7 missing in D. malagasy specimen HS-20 [B], presence of supernumerary spine 3a in D. jambiya). A. D. jambiya n. sp. (HS-39). B. D. malagasy n. sp. (HS-20). C. D. malagasy n. sp. (HS-22). D. D. nigrospinipes n. sp. (HS-24). E. D. phalloserra n. sp. (HS-07). F. D. spinipes Lamb (NHMUK 014335956). G. sp. D (HS-03). All to the same scale.

FIGURE 8. Male reproductive structures of epandrium and surstyli of representative species of the Drosophila spinipes group, all to the same scale. A. D. hypandrilata n. sp. (HS-38). B. D. malagasy n. sp. (HS-22). C–D. D. nigrospinipes n. sp. (HS-24). E. D. phalloserra n. sp. (HS-08). F. D. suma Burla (HS-01). G. sp. D (HS-03).

FIGURE 10. Continued from Fig. 9, hypandrium with aedeagus of two species in the Drosophila spinipes group, ventral views. A-C: D. phalloserra n. sp. (HS-07, HS-08, DMSA 140413, respectively). D. sp. D (HS-03). E-K: subepandrial sclerites, all to the same scale. E. D. cameroonensis n. sp. (HS-10). F. D. freidbergi n. sp. (HS-06). G. D. malagasy n. sp. (HS-20). H. D. nigrospinipes n. sp. (HS-24). I. D. phalloserra n. sp. (DMSA 140413). J. D. suma Burla (HS-01). K. sp. D (HS-03). A-D: to same scale as ones in fig. 9.

FIGURE 11. Distiphallus of most species in the Drosophila spinipes group, ventral view, all to the same scale. A. D. cameroonensis n. sp. (HS-10). B. D. freidbergi n. sp. (HS- 06). C. D. hypandrilata n. sp. (HS-38). D. D. malagasy n. sp. (HS- 20). E. D. malagasy n. sp. (HS- 16). F. D. nigrospinipes n. sp. (HS- 24). G. D. phalloserra n. sp. (HS-08). H. D. phalloserra n. sp. (HS- 07). I. D. phalloserra n. sp. (DMSA 140413). J. D. suma Burla (HS-01). K. sp. D (HS-03).

FIGURE 12. Aedeagus, aedeagal apodeme, and postgonite for most species in the Drosophila spinipes group, lateral views, all to the same scale. Spicules on the phallus are on the inner (mesal) surface. A. D. suma Burla (HS-01). B. D. malagasy n. sp. (HS- 17). C. D. malagasy n. sp. (HS-20). D. D. malagasy n. sp. (HS-22). E. D. cameroonensis n. sp. (HS- 10). F. D. hypandrilata n. sp. (HS- 38). G. sp. D (HS- 03). H. D. freidbergi n. sp. (HS- 06). I. D. nigrospinipes n. sp. (HS-24). J. D. phalloserra n. sp. (HS-07). K. D. phalloserra n. sp. (HS-08). L. D. phalloserra n. sp. (DMSA 140413).