Crossopalpus hirsutipes Collin, 1960

Grootaert, Patrick & Shamshev, Igor V., 2012, The fast-running flies (Diptera, Hybotidae, Tachydromiinae) of Singapore and adjacent regions, European Journal of Taxonomy 5, pp. 1-162 : 50-51

Crossopalpus hirsutipes Collin, 1960

Figs 79-83

Crossopalpus hirsutipes Collin, 1960: 387 .

Crossopalpus hirsutipes – Smith 1967: 2 (in key), figs 5, 6 — Pont 1995: 80 (type material) — Shamshev et al. 2006: 232, figs 1-7 (re-description).

Diagnosis

Antenna with postpedicel black, scape and pedicel brownish yellow. Palpus black. Thorax with anepisternum partly shining; scutum shining, covered with uniform hair-like setulae intermixed with long black bristles. Legs quite variable in colour but coxae entirely and femora almost entirely (except for apical part) black, otherwise legs yellow to brownish yellow in varying extent, lacking prominent bristles (except for circlets of subapical ones); hind femur with anteroventral and anterodorsal hairlike setae as long as femur is thick; hind tibia bearing long, spur-like apical projection, on all sides with numerous outstanding pale hair-like setae (2.0-3.0 times as long as tibia is thick) giving them very shaggy appearance. Wing with R 4+5 and Ml+2 somewhat sinuate, converging toward wing apex. Abdomen shining, with tergite 3 thickened on hind margin; bearing hairs on last four tergites decidedly longer than length of each tergite. Female resembling male, except for sexual differences.

Distribution

Cambodia, South India, Thailand, Viet Nam.

Habitat and seasonal occurrence

In Cambodia this species is recorded in July, August and December.

Remarks

This species has a wide distribution in the Oriental Region and consequently its occurrence in Singapore is quite possible.

Figures

Figs 79-83. Crossopalpus hirsutipes Collin, 1960, ♂ terminalia. 79. right surstylus dorsal view. 80. epandrium and cerci, dorsal view. 81. tip of left cercus, lateral view. 82. lower lobe of right surstylus. 83. left epandrial lamella, lateral view (after Shamshev et al. 2006).