Phortica sagittaristula 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 : 3954-3956

publication ID	https://doi.org/ 10.1080/00222930500533534
persistent identifier	https://treatment.plazi.org/id/C638879B-FF88-FFBF-024D-EAEFFC8BCAF5
treatment provided by	Felipe
scientific name	Phortica sagittaristula Chen and Wen
status	sp. nov.

Treatment

Phortica sagittaristula Chen and Wen View in CoL , sp. nov.

( Figure 2 View Figure 2 )

Diagnosis

Arista apically arrow-shaped ( Figure 2A View Figure 2 ); right lateral lobe of vertical process of gonopod with two pointed projections basally ( Figure 2C View Figure 2 )

Description

Head. Frons and face brown; gena brown-yellow.

Thorax. Thorax and scutellum yellow-brown, with brown patches and a pollinose pattern. Katepisternum brown-black.

Wing. r-m and dm-cu crossveins not clouded. Legs. Legs lacking dark spots and dark rings. Empodium of fore legs developed more than on the other legs.

Abdomen. Abdominal third to fifth tergites each with a brown band neither interrupted medially nor extended to lateral margins. Third sternite distinctly broadened, shorter than wide, with several long setae laterally; fourth sternite slightly longer than wide; fifth sternite longer than wide, with a few long setae laterally.

Male terminalia. Epandrium constricted mid-dorsally, laterally broad, almost entirely pubescent, with dense long setae near dorsal and posterior margins ( Figure 2B View Figure 2 ). Surstylus mostly covered, with several setae on inner surface ( Figure 2B View Figure 2 ). Cercus narrow. Vertical process of gonopod divided medially, basal projections pointed, apical processes round or expanded ( Figure 2C View Figure 2 ). Paramere slightly curved distally, basally with three sensilla ( Figure 2C, D View Figure 2 ). Median rod of aedeagus very short, unsclerotized; outer membrane undeveloped.

Measurements. BL 52.38 mm in holotype (2.30 in 1 „ paratype); ThL 51.20 mm (1.10); WL 52.26 mm (2.20); WW51.00 mm (1.00).

Indices. arb50/0 (0/0), flw51.20 (1.20), FW/HW50.40 (0.40), ch/ o50.06 (0.06), prorb51.15 (1.10), rcorb50.60 (0.65), vb50.40 (0.50), dcl50.40 (0.55), presctl50.60 (0.55), sctl51.10 (1.10), sterno51.00 (1.00), orbito51.30 (1.30), dcp50.25 (0.25), sctlp51.20 (1.20), C52.00 (2.27), 4c51.67 (1.50), 4v52.89 (2.75), 5x51.00 (1.00), ac53.00 (3.00), M50.67 (0.60), C3F50.61 (0.61).

Holotype: „, Yunnan: Xishuangbanna, Menglun, Xishuangbanna Tropical Botanical Garden , 740 m alt., 12 August 2002, M. J. Toda ( SCAU) . Paratype: 1 „, same data as holotype except 26 December 2003, H.-W. China ( SCAU). Guangxi: Fushui, Bapeng , alt. 230 m, 15 „, 5♀ (9 „, 5♀, ex tree trunks), 23 August 2004, X.-L. Dang and H.-W. Chen (3 „, KIZ; 9 „, 5♀, SCAU; 3 „, SEHU) .

Distribution

China (Guangxi, Yunnan) .

Relationships

This species is very similar to P. foliiseta Duda, 1923 from Taiwan in the shapes of the arista and gonopod, but differs from it in having the arista and right lateral lobe of vertical process of gonopod (in P. foliiseta : arista basally with two long dorsal branches, and right lateral lobe of vertical process of gonopod with one pointed projection).