MANGROVE HERCOSTOMUS SENSU LATO (DDPTERA: DOLICHOPODIDAE) OF SINGAPORE

摘要

Seven new species of Hercostomus sehsu lato are described from mangrove habitats in Singapore: H. brevidigitalis, new species, H. breviconiis, new species, H. lanceolatus, new species, H. limosus, new species, H. meieri, new species, H. plumatus, newspecies, and H. singaporensis, new species. A key is given to identify the mangrove Hercostomus of Singapore.The dolichopodid fauna of mangroves in Singapore is ver>' rich (Grootaert, 2006a). In a first paper on Dolichopodinae dealing mainly with mangrove species, we showed the presence of seven Paraclius species (Zhang et al., 2007), but there are additional species in other genera occurring in mangrove (Evenhuis & Grootaert, 2002; Grootaert, 2006b; Grootaert & Meuffels, 2001). Another good example is the genus Hercostomus sensu lato that is also speciose in Singapore's mangrove. The Island's terrestrial habitats have only two Hercostomus species that occur in low numbers (Grootaert, in litt.).