[1]
Roig-Alsina, A. 2006.

A new species of Hexantheda Ogloblin (Hymenoptera, Colletidae), a genus of bees with labial palpi of variable number of segments

. Zootaxa. 1229, 1 (Jun. 2006), 33–40. DOI:https://doi.org/10.11646/zootaxa.1229.1.2.