Patton.] 144 [March 5, 
polished. Calcaria testaceous, apical joints of tarsi rufo-piceous, the 
tips of the joints with golden pubescence. Abdomen polished, 
densely and finely punctured, first segment thinly pubescent, the re- 
maining segments with a short scattered pubescence, and all the seg- 
ments, except the last, with an even apical fascia of appressed pubes- 
cence, the ventral segments with the fasciae uninterrupted. Wings 
hyaline, the nervures dark piceous. 
In Connecticut this species, together with C. compacta and C. 
americana, is common in the autumn. I have found C. inaequalis 
Say, abundant on the willow-blossoms in Massachusetts. 
Colletes scitula sp. n. 
gd. Length 7 to 8 mm. Black, head, thorax, legs and basal 
seoment of the abdomen clothed with long white pubescence, that on 
vertex and on thorax above mixed with fuscous. Margins of the ab- 
dominal segments with narrow continuous fasciae of appressed white 
pubescence, the fine scattered pubescence on the second and follow- 
ing dorsal segments black; the pubescence on the venter white, the 
fasciae uninterrupted. Tips of the mandibles and of the tarsi 
piceous, the calearia and the base of the claws whitish testaceous. 
Space between eye and mandible moderate, clypeus rugose or puncto- 
striate, base of the labrum with an oblong pit in the centre, and with 
two or four smaller pits on each side. Spines of the prothorax 
moderate. Head and thorax coarsely punctured, the punctures small 
and confluent on face, dilated on pleura, and scattered on the disk of 
the thorax. Posterior face of the metathorax closely reticulated, with 
a highly polished triangular depression in the middle; beneath the 
apex of the triangle at the insertion of the abdomen two other de- 
pressions, and at the base of the triangle above two or four irregular 
enclosures of larger size than those at the sides. Abdomen shining, 
finely punctured, the venter tinged with piceous and more sparsely 
punctured. The contrast between the white fasciae and the deep 
black abdomen gives the species a very neat appearance. Wings 
hyaline, nervures and tegulae piceous. 
Bethlehem, N. H., July 26 and 31; Jefferson, N. H., Aug. 2 and 18. 
The spines of the prothorax are larger and stouter than in C. amer- 
icana, being in that species very small and slender. 
le 
