.100 



5. Thorax above and basal tergito of abdomon witli whitish to or-hreous 



pubescence, sometimes with dark hair intei-mixod on tiie tliorax ; 

 ventral scopa comparatively dense 6 



Thorax above and basal tergite of abdomen with dense, mostly 

 short and appressed pubescence of a deep, bright fulvous color; 

 ventral scopa thin. .1/. .svJiauiiislandi Alfken 



6. Venter of abdomen without white apical hairdiands 7 



Venter with narrow white apical hairdiands beneath and distinct 



from the seojia 8 



7. Ventral scopa bright fulvous in color; pubescence on thorax ochreous, 



becoming griseous on the sides of the mesoscutum; abdomen with 

 narrow, fulvous apical haird)ands on tergites 2 to o. 



M. diJir/ciis Snnth 



Ventral scopa very i>ale fulvous to pale ochreous; pubescence on 

 disk of thorax sparse, short and erect, whitish on the sides, but 

 nuieli intermixed with blackish hairs medially, the disk also with 

 very fine, pale ajipressed hairs; abdomen with narrow, white 

 apical hair-bands on tergites 2 to 5 and an apical white fringe 

 on the first tergite . . . . .M. i-ialmarum Perkins 



8. Ventral scopa rather liright fulvous changing anteriorly to creamy 



white on the second ventrite ; pubescence of face and thorax 

 white, on the disk of the mesoscutum sparse and short with some 

 brownish hairs intermixed, and also a few appressed white scale- 

 like hairs anteriorly on the mesoscutum and along the anterior 

 and posterior margins of the seutellum; abdomen with narrow, 

 white apical hair-bands on the first five tergites. 



M. fnU(iirai/i Cockerell 



Ventral scopa creamy white to jiale oclireous; pubescence of face 

 and thorax ochreous or in part yellowish, the disk of the mesos- 

 cutum in perfect specimens almost concealed by short, appressed 

 scale-like ochreous hair, with longer, erect and brownish hairs 

 intermixed, first five tergites of abdomen witli narrow, apical hair- 

 bands pale ochreous to creamy white, tlie last band gen(>ra]ly 

 whiter than those preceding M. iimberlakci Cockerell 



Megachile schauinslandi Alfken. 



Alfken. F]ntom. Nadir.. 24. p. .S4(), 1S98. 



An abtmdant sijccies, and nia\- be seen in hwi^c numbers 

 visiting the flowers of the Mexican creeper. Anti;^o}ion Icptopits, 

 and less frequently the flower of Bidnis ["ilosa. Cifnis and ])r()b- 



