1927] 
New Megachilid Bees 
105 
being very close and quite fine; propodeum with minute close 
punctures laterally, more sparse behind, the surface tessellate, 
basal triangle not definitely demarked; tegulse ferruginous, im- 
punctate, white pubescent anteriorly; wings lightly and rather 
uniformly fuliginous, slightly paler apicallv, nervures piceous to 
black, basal nervure well beyond transverse median, the re- 
current nervures entering the second submarginal cell at about 
equal distances from base and apex; legs black, with long white 
pubescence, the tarsi tinged with red, the metatarsi very long 
and slender; spurs pale testaceous; claws ferruginous, darker 
apically, deeply cleft, pulvilli distinct. 
Abdomen black, tinged with red basallv, the basal segments 
almost impunctate, the apical segments finely punctured, seg- 
ment 6 quite closely so; pubescence pale on segments 1 and 2, 
short and fuscous on segments 3-5, long and fuscous on 6 and 7 ; 
segments 2-6 with apical fasciae of white pubescence, widely in- 
terrupted on 2 and 3, slightly so on 4, entire on 5 and 6; ventral 
segments 2-5 also with distinct entire white apical fasciae and 
with long white pubescence on the discs. Length 12 mm. 
Type: Male (Type No. 15710, Mus. Com. Zool.); Austin, 
Texas (C. T. Brues, collector). 
With the mandibles closed this would be easily mistaken for 
L. echinocacti Ckll., but with the labrum exposed it is easily dis- 
tinguished. This distinguishes this species at once from all the 
other North American species. 
Megachile austinensis n. sp. 
9 . Head broad, eyes subparallel; supraclypeal plate shin- 
ing, very sparsely punctured medially, closely so at sides and 
above; clypeus almost impunctate in center, with a few widely 
scattered minute punctures, the surface polished, punctures 
coarse and quite close on extreme sides, apex entire, deeply im- 
pressed just before the edge which is slightly grooved; mandibles 
reddish above, black on the three inner teeth, with scattered, 
coarse, striate punctures above, 4-dentate, the two outer teeth 
broadly rounded, the third one acute and the inner one subacute; 
cheeks quite broad, finely and closely punctured, the punctures 
