PAN-PACIFIC ENTOMOLOGIST 
Vol. 55, No. 1, pp. 51-56 
A NEW PROTERIADES WITH DISTRIBUTIONAL NOTES AND A 
KEY TO ITS SUBGENUS (. HOPLITINA ) 
(HYMENOPTERA: MEGACHILIDAE) 
Frank D. Parker 
Bee Biology and Systematics Laboratory, 
Federal Research, Science and Education Administration, USDA, 
Utah State Univ., Logan, 84322 
Proteriades is an interesting genus of small megachilid bees, usually with 
hooked hairs on the mouthparts. It is believed that females use these hairs 
to remove pollen from the small corolla tubes of Cryptantha flowers (Tim- 
berlake and Michener, 1950). Formerly it was believed that the genus was 
an oligolege of Cryptantha and its distribution was mainly California (Hurd 
and Michener, 1955). Recently the known distribution of several species has 
been extended east of California (LaBerge, 1973; Tepedino, 1974; and Par¬ 
ker, 1977, 1978), and the concept of its floral constancy has changed to 
allow for several host families (Parker, 1978). 
Recent collecting in our southwestern desert areas has resulted in range 
extensions for several species previously known only from California. Also, 
an undescribed species of Hoplitina was found. This paper describes the 
new species, presents a key to the subgenus Hoplitina and discusses the 
distributions of five other species. 
Proteriades (Hoplitina) torchioi, new species 
(Figs. 1-4, 6) 
Holotype male. —Black; reddish laterally on terga 1-4, red area inter¬ 
rupted medially and smaller on successive apical terga; terga 4-6 with apical 
reddish brown band, sterna 3-4 reddish brown laterally; wings light brown. 
Pubescence short, white, moderate, longest on frons, vertex; mouthparts 
without hooked hairs; hair pattern on sterna as follows: 1 with thin fringe 
of long apical hairs, 2 with few short scattered hairs, 3 with dense short 
wide hair-pad on median apical margin; 4 with thin apical fringe, 5-6 with 
thicker apical fringe. Punctation of body rather uniform, pits small adjacent 
but separated by smooth integument; clypeus impunctate on summit of basal 
bulge, and apical margin; less densely punctate on hypostomal area; ster¬ 
num; hind face of propodeum; propodeal enclosure shagreen; pits on apical 
margin of sterna less dense; sterna 1, 2 more coarsely pitted than other 
sterna. Maxillary palpus 5 segmented (on paratype); apical clypeal margin 
crenulate, slightly thickened, basally swollen, protuberant; scape 3x as long 
