On the distribution of the marine genus Thinolestris Grootaert & Meuffels (Diptera, Dolichopodidae) with a description of a new species from Singapore, Malaysia and Brunei Author Grootaert, Patrick Author Evenhuis, Neal L. text Zootaxa 2006 1134 59 68 journal article 10.5281/zenodo.171929 bbf72547-0cb8-4c63-bf22-9af55fc4e7e0 1175­5326 171929 Thinolestris obscura Grootaert & Meuffels, 1989 Fig. 15 . Thinolestris obscura Grootaert & Meuffels, 1989 , Indo­Malayan Zoology 5: 35 ( Fig. 6 ). FIGURES 8–11 . Thinolestris nigra sp. nov. male (Brunei). 8. genital capsule left lateral view; 9. dorsal view of genital capsule; 10. sternite 5. 11. appendage on sternite 5 (left lateral view). ae: aedeagus; ce: cercus; hy: hypandrium. FIGURES 12–15 . Thinolestris extension on sternite 5 and hypandrium (left lateral view): 12. T . luteola (PNG); 13. T. nigra (Singapore, Malaysia, Brunei); 14. T . thaica (Thailand) ; 15. T . obscura (Sulawesi) . Diagnosis : Antenna reddish yellow, third segment darker than basal segments. Palp with white hairs. Mesonotum and scutellum brownish black. Abdomen with all tergites dark brown, except for first tergite with a narrow yellow band anteriorly. Tergites with short white hairs and pale marginal seta. Tip of hypandrium shallowly indented ( Fig. 15 ). Distribution : Indonesia : North Sulawesi: Celebes Sea. Phenology : Adults observed only in September (being the only collecting period).