1922] 
Synopsis of Panurgidce 
103 
CALLIOPSIS 
Females. 
Clypeus black, with a median stripe, 3 spots above; lateral face 
marks subquadrate, not extending above antennae; spot 
on tubercles; rarely a dot on tegulae; labrum dark; mp 
and galea subequal; 6-8mm; polylege; May 30-Oct. 14, 
andreniiormis. 
Clypeus luteous, with two black stripes, 1 spot above; lateral 
face marks pointed above antennae; tubercles black; dot 
on tegulae; mp shorter than galea; 7mm; oligolege of 
Heliantheae and Astereae; Aug. 20-Sept. 19, coloradensis. 
Males. 
Tubercles, legs, antennae except flagellum at base above, 
yellow; tegulae usually dark; 5-6mm; May 30-Sept. 19 
andreniformis. 
Tubercles, coxae, trochanters, femora except tips, tibiae behind, 
and apical joints of tarsi more or less, black; dot on tegulae; 
line on scape in front; flagellum testaceous beneath; 6-7mm; 
Aug. 21 — Sept. 24, coloradensis. 
A N THEM URGINM. 
Females. 
Scopa plumose; glossa linear, acuminate; lp 1 elongate, flat; 
mp not longer than galea; tegulae and front and middle 
knees testaceous, Pseudopanurgus. 
Scopa simple; mp longer than galea, 1. 
1. Lp 4: 13/2, 1 flat; glossa lance-linear, acuminate; nearly 
bare, finely and densely punctured, opaque; middle spur 
sparsely pectinate, about as long as planta; tegulae and 
front and middle knees testaceous; 5-6mm; polylege; 
May 28 — Oct. 23; parvus in, Heterosarus. 
