Records of Bees. 211 
Megachile meiliferina, Cockerell. 
Pilgrim’s Rest, Transvaal (LZ. Schumke.) South African 
Museum, 
Mayachile perniciosa pallipennis, Friese. 
Smithfield, O.R.C. (Kannemeyer). South African Museum. 
Andrena vierecki, Cockerell. 
Boulder, Colorado, April 15, 1920, 9 (Hlery R. Becker). 
Andrena beckeri, sp. n. 
? .—Length 7 mm., anterior wing 5°8 mm. 
Black, of ordinary form, resembling the species allied to 
A. nasoni, Rob., but without the broadly cuneate hind tibiz. 
Head and thorax with long pale greyish hair, except dorsally, 
where it is rich fulvous, becoming exceedingly rich ferru- 
ginous on scutellum; head broad, facial quadrangle much 
broader than long ; malar space linear; process of labrum 
emarginate; clypeus shining, with sparse but distinct 
punctures, arranged more or less in transverse rows, no 
median elevated line; facial fovezee broad (equal to about 
three-quarters distance between eyes and ocelli), reaching 
a little below level of upper edge of clypeus, whitish, suffused 
with pale reddish at the upper end; front dull, striate, and 
more or Jess punctured ; antennz rather long, black, the 
flagellum faintly brownish beneath; mesothorax moderately 
shining, but the surface microscopically cancellate anteriorly, 
and otherwise closely minutely punctured, with scattered 
larger punctures ; scutellum shining ; area of metathorax 
dull and granular, scarcely defined ; tegule shining black. 
Wings hyaline, faintly greyish apically, not at all reddish; 
stigma well developed, pale orange, nervures fuscous; b.n. 
falling a little short of t.-m.; second s.m. receiving first r.n. 
about middle. Legs with pale hair, tibial scopa greyish 
white, slightly blackish basally, not conspicuously plumose ; 
hair on the inner side of hind tarsi dull white. Abdomen 
shining, without distinct punctures, the microscope shows 
lineolation and sparse very minute punctures ; second seg- 
ment depressed much less than half; segments 2 to 4 with 
dense dull white hair-bands, broadly interrupted on 2, 
narrowly on 3, entire on 4; apex with pale, slightly brown- 
ish hair. The third antennal joint is about 270 yu long, the 
next two together about 24.0 uw. 
