Specific Characters in the Bee Genus Colletes 35 
punctures becoming close apically. Following segments similarly but more 
closely punctured. Apical margins of segments 1-5, with dense, even. fas- 
ciae of grayish white to pale ochraceous pubescence, continued as a fringe 
on venter, not at all depressed. Segments 2 and 3 have a very fine and 
sparse, short, pale pubescence, best seen in profile, which is partially re- 
placed on 4 and 5 by longer dark bristles. Apex rugose, with many stiff 
black hairs. 
do. Length 10 mm. Differs from the 2 as follows: Clypeus flat, less 
distinctly suleate, more densely and closely punctured, its surface concealed 
by long yellowish gray pubescence; antennae much longer, reaching beyond 
tegulae, joint 3 five-sevenths as long as 4 or following ones, the median 
joints five-sevenths as wide as long ; malar space twice as long as broad; 
cheeks and anterior femora bearded with long pale hairs, the thoracic pu- 
bescence longer and denser, the black hairs of vertex and dorsum much 
fewer and largely replaced by brown ones; enclosure more shiny, almost 
T-shaped from the very narrow bowl and neck, merely ridged laterally; 
apical tarsal joints suffused with brownish; basal joint of hind tarsi very 
slender, over four times as long as broad, median joints over twice as long 
as broad; no black hairs on tibiae; segment 6 not fasciate. 
Genitalia.—Stipes notched, its apex swollen, bulbous, short-haired; sag- 
ittal rods falciform, their tips abruptly divergent and exteriorly pubescent; 
volsella small; both internal and external costae of seventh ventral plate 
detached from the lobes; internal costae elongate, gradually and uniformly 
acuminate, externally very strongly bristled; external costae spatulate, 
terminally largely membranous, without bristles; lobes columnar, expand- 
ing apically into a large suboval sheet, the internal process exceeding the 
external. (Plate 2, figures 7 and 7a.) 
Tyre LocaLiry.—Massachusetts ; types in collection of Amer- 
ican Entomological Society. 
This species is recognizable at a glance by the extremely elon- 
gated malar space. Its range covers the coast district of southern 
New England and the North Atlantic states. Mr. Cresson also 
records it from Dallas county, Texas, where Mr. J. Boll collected 
three specimens representing both sexes, but I have seen no spec- 
imens from without the first mentioned district. My material is 
all from New Hampshire, Connecticut, New York, New Jersey 
and Pennsylvania. It is a vernal species, flying from April 10 to 
May 16, apparently being most abundant during the first two 
weeks in May. It visits the flowers of Ribes oxyacanthoides, R. 
rubrum, Leucothoe racemosa, and Chamaedaphne calyculata, in 
wet woods and swampy lands. 
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