Drosophila

Grimaldi, David A. & Jones, Lance E., 2020, A Revision of the Drosophila spinipes Species Group (Diptera: Drosophilidae), Zootaxa 4809 (1), pp. 1-28 : 21

Drosophila sp. A

Figs. 6A , 7I

Specimen: Female, HS04: “ Mwenda , Mt. Ruwenzori, Congo Belge / Dec. 13, 1948, 1400 m. forest, J. C. Bradley. ” Genitalia dissected by DG; in AMNH .

The two specimens from Mt. Ruwenzori, specimens HS-04 and HS-05, are clearly different species based on the oviscapt structure, the former having 10 (vs. 5) pegs in the ventral series. Additionally, in species A the postocellar setae are very small (OC/POC 0.06, vs. ca. 0.12); anterior reclinate orbital seta is nearly midway between the other two ipsilateral orbitals (ODB/ODA 0.45, vs. ca. 0.35); and the profemur is slightly longer than in other species (LF1/LF2 0.85, vs. 0.73–0.80).

Measurements: Head: HD/HW 0.85; FL/LFW 1.00; VB2/VB1 0.69; EW/ED 0.71; OC/POC 2.83; FW/FD 0.57; ODB/ODA 0.45; Thorax: ThL 1.00 mm.; UPS/LHS 0.65; LHS/ThL 0.23; ADC/PDC 0.40; AKE/PKE 0.51; LF1/LF2 0.85.

Figures

FIGURE 6. Female reproductive structures. A-D: ventral receptacles, probably various views. All to the same scale. A. sp. A (HS-04). B. sp. B (HS-05). C. D. cameroonensis n. sp. (HS-09). D. D. malagasy n. sp. (HS-19). E. Posterior 4 segments, lateral view of gravid female of D. malagasy n. sp. (HS-19), showing positions and sizes of ventral receptacle and egg.

FIGURE 7. Oviscapts, lateral view of right valves, with structures and peg groups used in the descriptions indicated in K. All to the same scale. A. D. cameroonensis n. sp. (HS-09). B. D. jambiya n. sp. (HS-39). C. D. malagasy n. sp. (HS-18). D. D. malagasy n. sp. (HS-28). E. D. phalloserra n. sp. (HS-11). F. D. phalloserra n. sp. (DMSA 140142). G. D. spinipes Lamb (NHMUK 014335956). H. D. suma Burla (HS-02). I. sp. A (HS-04). J. sp. B (HS-05). K. Species undetermined.