20 Myron Harmon Swenk 
Colletes crawfordi Swenk. 
1906. Colletes crawfordi Swenk, Entomological News, xvii, pp. 257-58, 
g *( September, 1906) ; original description. 
9. Length 8-9 mm. Closely allied to C. latitarsis but ae smaller; 
clypeus broadly medially sulcate with the punctures coarse but well. sep- 
arated, and the surface but slightly striate; pubescence paler, the vertex 
without black hairs and those on thorax much reduced; outer spur of hind 
tibiae pectinate with about a dozen long teeth; basal joint of hind tarsi 
longer, fully three times as long as broad. 
6. Unknown. 
Type Locairy.—Dallas, Texas; type in collection of the 
author. 
The type was collected October 8, 1905, on Physalis, and I 
have since examined two metatypes from San Angelo, Texas, 
collected September 27, on the same flower. The season and food 
plant thus correspond with those of the closely related and better 
known species, Jatitarsis. 
SPECIMENS EXAMINED—Texas: Dallas, 1; San Angelo, 2. 
Colletes chamaesarachae Cockerell. 
1897. Colletes chamaesarachae Cockerell, Annals and Magazine of Nat- 
ural History, series 6, xix, pp. 49-50, 2 (January, 1897) ; original 
description. 
1897. Colletes chamaesarachae Cockerell, Bulletin of the New Mexico 
Experiment Station, no. 24, p. 19 (August, 1897); recorded 
from Santa Fé, New Mexico, on basis of type. 
1898. Colletes chamaesarachae Cockerell, Bulletin of the Scientific Lab- 
oratories of Denison University, xi, p. 43, 2 (November, 1898) ; 
in table of New Mexico species. 
1906. Colletes chamaesarachae Cockerell, Transactions of the American 
Entomological Society, xxxii, p. 292 (October, 1906) ; recorded 
from Santa Fé, New Mexico, on basis of type. 
2. “Length about 10 mm. Black, with short, dull grey pubescence. 
Head tolerably broad; eyes not bulging at top; face and cheeks with sparse 
gray pubescence; clypeus bare, shining, strongly but not very densely 
punctured; sides of vertex sparsely punctured, shining; a broad dull groove 
in front of the upper part of each eye; labrum with a deep median long- 
itudinal furrow; mandibles stout, rounded at tips, the notch near the end; 
space between mandible and eye very short; flagellum dark brown beneath 
from the third joint to the end, its second joint shorter than the third and 
only half as long as the first. Prothoracic spine rather short, but very 
slender and sharp. Mesothorax with very large close punctures, absent on 
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