Abstract:
Host plants and behavior of males and females of 4
subspecies of the carpenter bee Xylocopa (N otoxylocopa)
tabaniformis (illota Cockerell, melallosoma O'Brien
and Hurd, rujina Maidl, and tabaniformis Smith) are
discussed and a nest site (bracket fungus) of illota is
figured. Males of melanosoma were found to establish a territory, and the activity of illota and mjina males sug~
gests territoriality. These bees are active in the evening
and early morning; this fact is reflected by their rarity
in collections and should be considered by the collector
in Mexico.