4 University of Michigan 



Osmia melanotricha Lovell & Cockerell. 



Floodwood, Schoolcraft Co., July 14, 22, 29. (Gaige 20, 25. 

 26, 34). Four females. Previously known from ^Nlaine and 

 Colorado. 



c". Black ; male antenna ordinary. Feet without piilvilli. 



d\ Female zvith red ventral scopa, and segments 4 and 5 dor- 

 sally with while hair-hands ; male with anterior legs 

 much modified, anterior femora witJi tJic outer margin 

 only black at end, zchcre there is a short keel. 



Megachile vidua Smith. 



Floodwood. Schoolcraft Co.. July 6, 8. 11, 21 (males), and 

 26 (female), (Gaige ^, y, 11, 24). Whitefish Point, Chippewa 

 Co., July 29, (Andrews, 20 ) female, and (Andrews 17) male. 



d". Female z^'itli red or black ventral scopa; dorsal segments 

 4 and 5 of abdomen without white hair-bands; male with 

 anterior legs mucli modified, the anterior femora z^'ith a 

 broad black stripe from base to ape.v on outer side, and 

 no apical keel. 



Megachile melanophaea Smith. 



Floodwood. Schoolcraft Co., July 11, 30, two females 

 f Gaige 9. 35) ; July 11, 12, two males (Gaige 12, 14). White- 

 fish Point, Chippewa Co., July 29, one male (Andrews 18). 

 None of these are typical ^L melanophcca, which has the ven- 

 tral scopa of female rich dark chocolate color throughout. The 

 female Xo. 35 (July 30), which has the lower part of the 

 pleura black-haired, and the ventral scopa bright red, black at 

 base and to some extent at sides, is a slightly modified form of 

 the western (Washington State) M. melanophcca calogaster 

 (Ckll.). The other female (July 11), with the hair of pleura 



