(Hymenoptera: Apidae: Xylocopinae)
Issue No. 167
E. E. Grissell
May, 1976
Introduction
In America north of Mexico Ceratina (small carpenter bees) is one of 2 genera of the subfamily Xylocopinae. The other genus, Xylocopa (large carpenter bees), was discussed in entomology circular 160 (Grissell, 1975). Of the 21 species of Ceratina in America north of Mexico, only 2 are known to occur in Florida: C. cockerelli H. S. Smith and C. dupla Say. Mitchell (1962) described the subspecies C. dupla floridanus from Florida, but Daly (1973) synonymized it simply as a more densely punctate, brighter blue population of the typical eastern C. Dupla. this circular, along with no. 160, is designed to make possible the species identification of anv Florida Xylocopinae.