Trichomacronema Schmid, 1964

Uy, Christine Jewel C., Malicky, Hans & Bae, Yeon Jae, 2018, Review of the filter-feeding caddisfly subfamily Macronematinae (Trichoptera: Hydropsychidae) in tropical Southeast Asia, Raffles Bulletin of Zoology 66, pp. 664-703 : 697

Genus Trichomacronema Schmid, 1964

T r i c h o m a c r o n e m a S c h m i d, 1 9 6 4: 8 4 0 [T y p e s p e c i e s: Trichomacronema shanorum Schmid, 1964 , designation].

Diagnosis. This genus can be distinguished from other Macronematinae genera by having forewing venation of Rs base obsolete, joined to R1 by cross-vein. Body black when fresh and brown in alcohol. Head with five setal warts with two anterior setal warts larger then posterior. Anteromesal setal wart large and obvious. Discoidal cell present and minute.

Remarks. Only two Trichomacronema species ( T. tamdao and T. paniae ) have been reported in Southeast Asia, and both are distributed in Thailand and Vietnam. The new Trichomacronema vietnamemsis Uy, Malicky & Bae , new species that is described here represents the third species from Southeast Asia.