Reprinted from: Snelling, R. 1970. STUDIES ON NORTH AMERICAN BEES OF THE GENUS
HYLAEUS. 5. THE SUBGENERA HYLAEUS. S. STR. AND
PARAPROSOPIS (HYMENOPTERA: COLLETIDAE) Contributions in Science, No. 180.|
I have examined the type of Prosopis digitata var. fedorica, now in the
American Museum of Natural History, and have compared it with homotypes
of H. grossicornis and there can be no doubt that these are conspecific, as first
suspected by Metz (1911). The type locality of H. fedorica is Fedor, Lee
County, Texas; H. fedorica has priority by one year over H. grossicornis.
This species ranges from Michigan to Minnesota, then southward to
Texas; an eastern extension exists through the southern United States to
The male may be readily distinguished by the characters given in the key. The female, similar to that of H. cressoni, is best recognized
by the shape of the head in full face view. In all other species of the H. cressoni
group, the inner margins of the eyes are strongly divergent above, with the
eyes rather strongly bulging. In these species the widest part of the head is
somewhat above the level of the antennal sockets. In the female of H. fedorica
the inner margins of the eyes are only slightly divergent above; the eyes are
much less strongly' bulging abdve and the widest 'part of the head is at, or
below, the level of the antennal sockets. The head is always slightly longer
Reprinted with permission from: Mitchell, T.B. 1960 Bees of the Eastern United States. North Carolina Agricultural Experiment Station Technical Bulletin No. 141.
FEMALE—Length 4.0-4.5 mm.; almost entirely black, yellow areas limited to a pair of very small stripes adjacent to lower half of eye, and yellow basal half of the front and hind tibiae; wings hyaline, violaceous, veins brownish-testaceous, the stigma more piceous; face somewhat narrowed below, the eyes converging; cheeks about as broad as eyes; foveae deep and distinct, elongate, closely parallel to upper portion of eye; antennae quite short, segments of flagellum about as broad as long, the 2nd and 3rd segments much broader than long; surface of face, vertex and cheeks dull, tessellate, punctures exceedingly minute and obscure, hardly visible; thorax narrow and elongate, scutum dull, finely tessellate, punctures shallow, well separated over most of the disc; scutellum somewhat more shining, the punctures somewhat more distinct but more sparse; metanotum smooth but dull and tessellate; dorsal triangle of propodeum finely and irregularly rugose along basal margin, rounded posteriorly; pleura rather dull, punctured about as dorsum of thorax; abdominal terga dull except the somewhat shining basal segment, punctures exceedingly minute, hardly visible.
MALE—Length 4 mm.; black, including tubercies and collar of pronotum; clypeus, supraclypeal area, lateral face marks, tarsi and tibiae in part, yellow, lateral face marks triangularly acute above, ending at level of antennae; outer face of front tibiae entirely yellow, mid tibiae narrowly yellow at base and apex, and basal half of hind tibiae yellow; scape with a narrow, elongate, anterior, yellow stripe, flagellum piceous above, more brownishtestaceous beneath, segments somewhat longer than broad, but the basal and 2nd segments very short; wings hyaline, violaceous, veins and stigma brownish-testaceous; supraclypeal area elongate, more than half the length of the clypeus; cheeks much narrower than eyes; face above antennae somewhat shining, with numerous rather close but shallow punctures; surface of cheeks smooth, practically impunctate; thorax narrow and elongate, scutum dull and tessellate, punctures fine and rather close in general, scutellum somewhat more shining, punctures more widely separated and distinct; metanotum narrow, dull but smooth; dorsal triangle of propodeum finely and obscurely rugose, more or less rounded posteriorly; pleura more shining, punctures rather deep and distinct, rather close but not crowded; abdominal terga shining, punctures exceedingly minute and indistinct, hardly visible even on the more apical segments.
DISTRIBUTION—Texas to North Carolina, north to Minnesota, Wisconsin and Michigan; April to June.
FLOWER RECORDS—Crataegus, Daucus and Pyracantha.