90 



GUIDE TO CALIFORNIA INSECTS. 



laticincta Cr. 

 subc^rulea Cr. 



sexmaculata Ash. 



MEGACHILID/E. 



This family contains the leaf cutting bees, Megachile, which cut round or 

 oval holes in the leaves of various plants, particularly roses; these are used 

 to line their nests. Anthidium gathers cottony materials from plants for 

 the same purpose. 



Figure 66. Leaf cutting bee, Megachile. 



SYNOPSIS OF GENERA. 

 Osmia: pulvillus present, Chelostoma and Heriades: maxillary palpi three- 

 jointed, the latter with mandibles tridentate. Alcidamia: male antennae de- 

 formed. 



Anthidium. Megachile: second submarginal receiving both recurrents. 

 Alcidamia producta Cr californicum Cr. 



Anthidium atriventris Cr. 



californicum Cr. 



compactum 



consimile 



edwardsii Cr. 



emarginatum Say. 



i I lustre Cr. 



maculifrons Cr. 



maculosum Cr. 



pallidiventre Cr. 



provancheri Tit. 



tricuspidum 

 Chelostoma australis Co. 



Heriades albicinctum Prov. 



glaucum Fow. 



semirubra Co. 

 Megachile brevis Cr. 



exilis 



fidelis Cr. 



frigida 



latimanus 



montivagus Cr. 



pugnata Say. 



studiosa 

 Osmia abjecta Cr. 



albiventris Cr. 



