Specific Characters in the Bee Genus Colletes 29 
1895. Colletes inaequalis Robertson, Transactions of the American En- 
tomological Society, xxii, p. 115 (May, 1895) ; synonmy, season 
of flight, etc. 
1900-01. Colletes compacta J. B. Smith, Journal of the New York En- 
tomological Society, viii, p. 208, and ix, pp. 30-36 (September, 
1909, and March, 1901) ; burrows, habits, etc. 
1901. Colletes inacqualis Cockerell, [bid., ix, p. 182 and p. 134, 2 ¢ (Sep- 
tember, 1901) ; recorded from Lahaway and Newark, New Jer- 
sey, collected by J. B. Smith. 
1904. Colletes inaequalis Robertson, Canadian Entomologist, xxxvi, no. 
9, p. 275, 9, p. 277, ¢ (September, 1904); in table of Lllinois 
species. 
1905. Colletes inaequalis Cockerell, Psyche, xii, p. 86, ¢ (October, 1905) ; 
in table of various species. 
1906. Colletes inaequalis Robertson, Science, xxiii, p. 309 (February, 
1906) ; season. 
1906. Colletes inaequalis Britton and Viereck, Report of the Connecticut 
Agricultural Experiment Station for 1905, part iv, pp. 210, 214, 
215 (1906) ; taken on Ribes and Prunus. 
1907. Colletes inaequalis Lovell, Canadian Entomologist, xxxix, no. 11, 
p. 364 (November, 1907); recorded from Waldoboro, Maine. 
?. Length 12-13 mm. Head short and broad, the eyes converging.. 
Clypeus uniformly slightly convex, shiny, sparsely covered with short, 
soiled gray pubescence, its surface roughened by deep, subparallel striae 
in which lie coarse, shallow punctures. Supraclypeal area punctured. 
Face and cheeks with much finer, very close punctures and moderately 
long and dense, erect, grayish white pubescence. Vertex finely punctured 
with two sizes, laterally almost bare, centrally with sparse, long, pale and 
blackish hairs intermixed. Antennae wholly dark, minutely punctured, 
joint 3—=4; the following joints about as long as broad. Malar space finely 
striate punctate, about three-tenths as long as wide. Prothoracic spine 
lacking. Thorax dorsally covered with a tolerably dense, erect, gray or 
pale ochraceous-gray pubescence, conspicuously mixed with dark brown 
to black hairs, especially on the scutellum. Mesopleura with long whitish 
pubescence and uniformly coarse, close, shallow punctures. Mesothorax 
moderately shiny with round, strong, rather large punctures, very close 
except upon the disk where they are rather sparse. Median and lateral 
impunctate grooves present, the former deeply impressed. Scutellum at 
extreme base shining and impunctate or with only a few scattered punc- 
tures, after which it is coarsely striate punctate on a dull surface. Post- 
scutellum crowded with fine, dense punctures, forming a dull, rough sur- 
face. Superior face of metathorax defined by a weak angulation, shiny, 
crossed by numerous crooked ridges which laterally become straight enough 
to form irregular pits half as wide as long. Posterior plate with long pale 
hairs, its sides dull, minutely roughened and sparsely pitted; the enclosure 
lod 
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