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. C

Figs. 2 A–B, 3E

Specimens: 3 females, HS-13, HS-14, HS-15: “ Madagascar, Province d’Anisirana , Parc National Montagne de’Ambre, elev. 960 m., 7–27 Jan. 2007, 12° 30’ 52” S, 49° 10’ 53” E / California Acad. Sciences, coll. M. Irwin, F. Parker, M. Harin’Hala, Malaise trap MA 01-01A-16.” HS-14, 15 in CAS ; HS- 13 in AMNH.

Known only from females, a relatively large species (ThL>1.00 mm), distinctively with a faint, light pair of paramedian stripes on the anterior portion of the scutum. Subvibrissa about half the length of vibrissa (VB2/1 0.53), anterior reclinate relatively smaller (OR2/OR1 0.75), postpronotal setae almost equal in size (UHS/LHS 0.90, vs. 0.70–0.80), anterior katepisternal seta small (AKE/PKE 0.17, vs. 0.3–0.5). Measurements: (N=2, HS13, 14) Head: HD/HW 0.81 (0.79–0.83); FL/LFW 1.22 (1.21–1.24); VB2/VB1 0.53; EW/ED 0.66; OR2/OR1 0.75; OR3/OR1 1.16; OC/POC 1.43 (1.33–1.54); FW/FD 0.58 (0.56–0.60); ODB/ODA 0.40 (0.38–0.42). Thorax: ThL 1.03 mm. (1.00–1.07); UPS/LHS 0.90; LHS/ThL 0.20; ADC/PDC 0.51; AKE/PKE 0.17; LF1/LF2 0.77.

Figures

FIGURE 2. Distinct or apomorphic features of the Drosophila spinipes species group. A. Lateral view, sp. C (HS-13). B. Same as A, with detail of mouthparts. C. D. nigrospinipes n. sp. (HS-12), dorsolateral view of thorax, showing setal tubercles and spiracular channel. D. Wing, D. malagasy n. sp. (HS-21). Arrow indicates end of dense costal spinules. E-F. SEM of protarsal spines, mesal view of specimen HS-14 (sp. B). Note the shallow longitudinal grooves.