Phortica pangi Chen and Wen, 2005

Chen, Hong-Wei, Gao, Jian-Jun & Wen, Shuo-Yang, 2005, Species diversity of the genus Phortica Schiner in Yunnan, China, with descriptions of nine new species (Diptera, Drosophildae), Journal of Natural History 39 (46), pp. 3951-3978 : 3973-3974

Phortica pangi Chen and Wen , sp. nov.

( Figure 10 )

Diagnosis

Paramere apically with one sensillum, two small teeth and a small triangular, lobe-shaped process ( Figure 10C ); branch of aedeagal basal bridge large quadripartite, strongly sclerotized ( Figure 10C ).

Some characters commonly seen in P. uncinata sp. nov. are not referred to in the following description.

Description

Head. Frons dark brown. Face brown. Gena dark brown. Postgena brown.

Thorax. Anepisternum with a few setulae.

Legs. Mid tibia subapically with three to four longer setae on anterior surface.

Abdomen. Abdominal third and fifth tergites with medially and laterally interrupted, broad, brown bands along posterior margins.

Male terminalia. Epandrium pubescent, with six setae near dorsal and posterior margins ( Figure 10A ). Surstylus with about six to eight long setae on basal one-third, and a few short setae on distal two-thirds, and about ten prensisetae along inner margin ( Figure 10A ). Paramere lacking pubescence ( Figure 10C ). Aedeagal median rod subapically expanded, symmetrical, with one pair of processes ( Figure 10C ).

Measurements. BL 53.50 mm (3 „ paratypes: 3.34–3.60); ThL 51.10 mm (1.05–1.20); WL 52.83 mm (2.67–3.10); WW 51.10 mm (1.05–1.10).

Indices. arb55/2–3 (5/2–3), avd50.65 (0.50–0.70), adf52.00 (1.80–2.00), flw51.40 (1.40–1.50), FW/HW50.40 (0.40), ch/ o50.06 (0.06), prorb51.00 (1.00–1.10), rcorb50.45 (0.45–0.50), vb50.50 (0.35–0.50), dcl50.55 (0.55–0.60), presctl50.70 (0.70–0.80), sctl51.10 (1.10–1.20), sterno50.80 (0.75–0.80), orbito51.40 (1.50–1.60), dcp50.30 (0.30), sctlp51.20 (1.10–1.20), C52.10 (2.00–2.30), 4c51.52 (1.56–1.85), 4v52.80 (2.86–3.55), 5x51.05 (1.00–1.11), ac53.80 (3.70–3.90), M50.80 (0.49–0.70), C3F50.70 (0.67–0.73).

Holotype: „, Yunnan: Menglun, Xishuangbanna , 940 m alt., 21 September 2003, H.-W. Chen ( SCAU). Paratypes: 1 „, data as holotype ( SCAU); 2 „, 24–26 December 2003, S.-Y. Wen ( KIZ and SEHU). Hainan: Ledong, Jianfengling, alt. 780 m, 2 „, 19 May 2004, H.-W. Chen leg. ( SCAU).

Remarks

This species is similar to P. setitabula sp. nov. in the paramere lacking pubescence and the aedeagal median rod subapically symmetrical. In P. setitabula the arista is without ventral branches; additional plate between cerci very large, more than tenth sternite.

Figures

Figure 10. Phortica pangi Chen and Wen, sp. nov., „. (A) Epandrium, cercus and surstylus (lateral view); (B) 10th sternite and additional plate (frontal view); (C) hypandrium, gonopod, parameres and aedeagal median rod (lateral view). Scale bars: 0.1 mm.