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Specific Characters in the Bee Genus Colletes 4l 
ribbed, the tips of the sagittae exceeding the stipites; volsella rather small, 
less than one-half as long as sagitta; seventh ventral plate produced ap- 
ically into two long tails, the apices of which are setigerous medially, with 
outwardly directed short bristles, denser internally, the basal and internal 
margin glabrous. (Plate 2, figures 10 and 10a.) 
Tyre LocaLiry.—Baraga county, Michigan; cotypes in collec- 
tion of Philadelphia Academy of Natural Sciences and of the 
author. ; 
This species is known only from the type series, collected by 
Mr. Morgan Hebard in northern Michigan (Baraga county) 
along the shores of Lake Superior, July 2 to 24, 1903. The spec- 
imens were collected in huckleberry barrens and in meadows and 
marshy tracts. Quite probably it visits the huckleberry blossoms. 
SPECIMENS ExAMINED—Michigan: Baraga county, 4; Pequam- 
ing, 3; Point Abbaye, 2. 
Colletes fraserae n. sp. 
6. Length 7 mm. Clypeus coarsely and striately punctured, largely con- 
cealed by the long, erect, grayish white hair of the face. Sides of vertex 
and cheeks closely, weakly punctured. Malar space three-fifths as long as 
broad. -Antennae long, joint 3 shorter than 4 or 5, the proportion being 
3:5:5, the median flagellar joints one and three-tenths as long as wide. 
_Prothoracic spine short and distinct. Mesothorax distinctly, closely punc- 
tured, but these not crowded and on a large, shining disk quite sparse: 
Scutellum coarsely punctured, postscutellum dull and finely roughened. 
Superior face of metathorax broad and crossed by about eight ridges, form- 
ing subquadrate pits much longer than broad. Enclosure small, the bowl 
' very short and wide, entirely longitudinally ridged, the neck short and nar- 
row, smooth, surrounding areas opaque. Pubescence of thorax gray, 
slightly mixed with black on scutellum. Tegulae dark. Wings slightly 
darkened, nervures and stigma black. Legs slender, black, the basal joint 
of hind tarsi four times as long as broad. Abdomen slender, shining, seg- 
ment 1 subimpunctate, 2 sparsely weakly punctured, 3 and following 
sparsely, indistinctly punctured, apical margins of 1-5 distinctly depressed 
and bearing very thin, loose, white fasciae. 
Genitalia.—Stipes notched, its apex slender, straight, pubescent; sagittal 
rods abruptly constricted medially, their apices divergent, bases greatly 
dilated; volsella small; seventh ventral plate fan-shaped, the lobes heavily 
chitinized and densely pilose along the costae, moderately hairy on the 
disks. (Plate 2, figures 11 and 11a.) 
Type LocaLity.—Beulah, New Mexico; type in collection of 
the author. 
83 
