64 
THE PAN-PACIFIC ENTOMOLOGIST 
Females 
1. Clypeal margin with median triangular-shaped projection (Fig. 11); 
scopal hairs black on sterna 5, 6; foveae on terga 2, 3 (Fig. 12) 
. apicalis Spinola 
Clypeal margin truncate or excised medially (Figs. 9, 10); scopal 
hairs white on sternum 5; foveae absent on tergum 3 
.2 
2. Postocular area as wide as least ocellocular distance (Fig. 15 
arrows); clypeus with short shiny median lobe (Fig. 10); 
foveae on tergum 2 oval, pubescence on dorsum yellowish- 
white . pacifica (Panzer) 
Postocular area less than ocellocular distance (Fig. 14 arrows); 
clypeal margin with shallow median excision (occasionally 
with small median tooth (Fig. 9); foveae on tergum 2 in¬ 
distinct, with short hairs; pubescence white. 
. concinna Smith 
Literture Cited 
Hurd, P.D. 1954. Distributional notes on Eutricharaea, a Palearctic subgenus of Megachile, 
which has become established in the United States. Entomol. News 65:93-95. 
Parker, F.D., P.F. Torchio, W.P. Nye, and M. Pedersen. 1976. Utilization of additional 
species and populations of leafcutter bees for alfalfa pollination. J. Apic. Res. 
15:89-92. 
EDITORIAL NOTICE 
We the editors regret to announce that we will be losing the ser¬ 
vices of our Editorial Assistant, Chris Walby. We want to thank her for 
all her help, and wish her well in her new position. 
