Larval Psephenidae (Coleoptera: Byrrhoidea) of Thailand: Annotated List and Illustrated Key to Genera Author Shepard, William D. Author Sites, Robert W. text The Coleopterists Bulletin 2019 2019-06-21 73 2 259 282 http://dx.doi.org/10.1649/0010-065x-73.2.259 journal article 10.1649/0010-065X-73.2.259 1938-4394 5454617 Micreubrianax Pic, 1954 Discussion. Micreubrianax was described by Pic (1922) . However, the name and validity of the genus were in question until the revision by Jeng et al. (2006b) . The genus contains four species, one of which ( Micreubrianax siamensis Jeng, Jäch, and Yang, 2006 ) was described from collections in Thailand ( Chiang Mai Zoo). The other species are distributed in India , Nepal , and Vietnam . The immature stages are unknown.