no CALIFORNIA ACADEMY OF SCIENCES. 



at base of segments 2-6; ventral segments 2-5 are densely 

 clothed with white pubescence ; sixth dorsal segment 

 roundly notched at apex, the production on each side of 

 the notch obtuse, the fifth dorsal segment laterally at the 

 apex is armed with a tooth, which projects in such a man- 

 ner as to appear attached to the base of the sixth seg- 

 ment. Length 12 mm. 



Las Cruces, New Mexico {T. D. A. Cockerell); San 

 Ignacio, L. Cal. {Haiucs) April. This is a very distinct 

 species and belongs near Say//, pug}iata and rnjimanus. 



Melissodes suffusa Cr. San Jose del Cabo and 

 Mesa Verde, October. One ? and one <5 specimen. 



Melissodes menuacha (?) Cr. Numerous speci- 

 mens of both sexes from several localities, that I refer 

 doubtfully to this species. They either represent a variety 

 or a distinct species, but their condition is such as to make 

 a correct determination almost impossible. 



Melissodes spp. Four species in too poor a condi- 

 tion for identification. 



DiADAsiA APACHA Cr. Several specimens, both sexes. 

 San Jose del Cabo, October. 



DiADASiA TOLUCA Cr. {=^Mel/ssodcs toliicii Cr.) San 

 Jose del Cabo, October. Several specimens of both sexes. 



Xenoglossa fulva Sm. Numerous specimens, ? , 5 , 

 from San Jose del Cabo, October. I wish to herewith 

 acknowledge my Centr/s mustelina, described in the 

 former paper, as a synonym of this species. 



Antiiophora capistrata Cr, El Taste, 3,400 feet. 

 Two "3 specimens. 



Anthophora maculifrons Cr. Two 3 specimens. 

 San Jose del Cabo, July and October. 



