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 mm.; head and thorax bluish-green, abdomen piceous, without conspicuous maculae; face slightly longer than distance between eyes; eyes parallel; cheeks subequal to eyes in width; vertex rather broad, lateral ocelli subequally distant from its hind margin and from eyes; foveae elongate, rather broad, quite deep and distinct; mandibles yellow with ferruginous tips; labrum dark ferruginous; clypeus rather narrow and elongate, protruding considerably below suborbital line, entirely piceous, with shallow, fine, well separated and rather inconspicuous punctures; facial mnculae absent; scape obscurely yellowish at extreme base anteriorly, otherwise dark, the flagellum pale brownish beneath, somewhat darker above; face and cheeks rather dull, the punctures barely evident; pubescence of head and thorax extremely short and thin, entirely white; thorax entirely dark, without maculae; tegulae yellowish-hyaline; wings subhyaline, veins pale testaceous, the stigma rather dark brownish; legs dark brownish, front tibiae yellow anteriorly and front tarsi entirely yellow; scutum and scutellum dull, almost black, the punctures very fine and indistinct, rather sparse, pleura more bluish-green, dull above, but somewhat shining below, with very fine but somewhat closer punctures; abdomen piceous, tergum 3 with a pair of very small, lateral, yellow maculations, but these sometimes absent, depressed apical margins of the terga concolorous with discs, the more apical terga with some fine, scattered, inconspicuous punctures.
MALE—Length 5 mm.; head and thorax dark greenish-piceous, abdomen entirely piceous, face with yellow maculae; face slightly shorter than distance between eyes; eyes parallel; cheeks considerably broader than eyes, without tubercles; vertex quite broad, but lateral ocelli considerably nearer its hind margin than to eyes; foveae somewhat elongated, rather deep and quite distinct, located near top of eyes; mandibles yellow, with ferruginous tips; labrum yellow; clypeus yellow except for a pair of small, lateral, brownish spots above; face marks broad and conspicuous, filling area between clypeus and lower margin of eye, extending about to level of antennae on inner margin of eye, supraclypeal area yellow; scape yellow anteriorly, dark posteriorly, flagellum testaceous beneath, slightly darker above; lower portion of face and cheeks somewhat shining, upper portion rather dull, punctures hardly evident; pubescence of head and thorax extremely short, thin, entirely white; thorax without distinct maculae, but tubercles somewhat brownish; tegulae yellowish-hyaline; wings subhyaline, veins pale testaceous, stigma somewhat more brownish; femora brownish, narrowly yellowish at tips, all tarsi and front tibiae entirely yellow, mid and hind tibiae brownish, becoming somewhat yellowish at base; scutum and scutellum dull, very dark green, punctures exceedingly minute, barely visible, rather sparse; pleura somewhat more shining, but with punctures even more indistinct; basal abdominal terga entirely impunctate, the more apical terga with barely evident, very minute and sparse punctures, surface of all somewhat shining; apical margin of sternum 6 broadly and shallowly incurved; apical margin of sternum 7 with a deep, broad, rounded, median emargination; apical portion of sternum 8 gradually narrowed to the rather abruptly and narrowly truncate tip, slightly compressed laterally, forming an obscure median longitudinal carina, tip with some short pubescence; gonostyli broad basally, rather short, somewhat curved and slender apically except for a dorsal, sharply compressed, rounded flange, penis valves slender apically, broadened toward base, slightly exceeding tips of the gonostyli, volsellae composed of a slender elongate cuspis and a considerably longer and much flattened digitus, the gonocoxites produced apically to form broadly rounded lobes.
DISTRIBUTION—Colorado to Illinois and Michigan, south to Florida; April to September.
Timberlake (1958) in his revision of Perdita did not synonymize maura with halictoides, but indicated their close relationship, expressing the opinion that they probably are no more than forms of a single species. After his manuscript was submitted for publication, two males, apparently typical maura, came to hand which had been collected in Florida. These were sent to him, and he concurs in the opinion that they constitute strong evidence for the common identity of the two. Since these males were collected in the same general region in which typical halictoides females have been collected, it would seem that the differences between the two are due to individual variability rather than to any geographic racial distinction. The type of halictoides in the British Museum has been compared with a female collected in Florida and no differences could be found.