Ngirhaphium Evenhuis & Grootaert from southern Thailand (Diptera: Dolichopodidae) with the description of a new species

Abstract

The genus Ngirhaphium Evenhuis & Grootaert, 2002 is reported for the first time from Thailand in particular from mangroves on the coast of the Andaman Sea in southern Thailand. Three species were found: N. murphyi Evenhuis & Grootaert, 2002, N. sivasothii Grootaert & Puniamoorthy, 2014 and N. chutamasae sp. nov. The latter species is described and illustrated and a key to all four known species is provided. COI barcode data showed that the new species is most closely related to N. murphyi with a genetic distance of 7%. The distance with the other species is 11 to 12%.

New marine Thinophilus species (Diptera: Dolichopodidae: Hydrophorinae) from the Thai Andaman Sea coast and new records from peninsular Thailand

“…Thinophilus in Southeast Asia thrives in marine habitats (Grootaert & Meuffels 2001;Evenhuis & Grootaert 2002;Samoh et al 2015Samoh et al , 2017Grootaert 2018), where they are often found on rocky shores, but most species are found in front mangroves or follow the creeks inside the mangrove. A few species are non-marine, such as T. mekongensis Grootaert, 2017, and the very common and widespread T. nitens Grootaert & Meuffels, 2001 and T. setiventris Grootaert & Meuffels, 2001.…”

Eight new species of marine dolichopodid flies of Thinophilus Wahlberg, 1844 (Diptera: Dolichopodidae) from peninsular Thailand

“…In a previous survey (Grootaert & Meuffels 2001) 15 species belonging to seven genera of Dolichopodidae were found. Samoh et al (2015) added the genus Ngirhaphium Evenhuis & Grootaert, 2002 with three species, resulting in 18 known species from southern Thailand to date. Only three species of Thinophilus have been recorded from peninsular Thailand until now: T. nitens Grootaert & Meuffels, 2001, T. parmatus Grootaert & Meuffels, 2001 and T. setiventris Grootaert & Meuffels, 2001.…”