1927] 
New West Indian Megachile 
55 
Megachile caiiotensis n. sp. 
cf. Facial quadrangle much longer than wide, densely 
ochraceous pubescent; clypeus closely and finely punctured, 
apical margin smooth and shining, slightly incurved; mandibles 
4-dentate, obscurely reddish apically, otherwise black, inferior 
tooth triangular in shape, submedian, somewhat nearer base of 
mandible than to apex; cheeks broad, closely punctured, carinate 
posteriorly; vertex considerably extended behind eyes, flat, 
closely and quite deeply punctate posteriorly, an impunctate 
area on either side of the lateral ocelli, and a small oval impunc- 
tate area between them, the posterior margin of the vertex def- 
inite but hardly carinate; ocelli considerably nearer eyes than 
to edge of vertex; antennae not especially long, the joint being 
hardly twice as long as wide, the apical joint dilated and some- 
what flattened; pubescence of face and clypeus ochraceous, 
tinged with red on vertex, some short black hairs above eyes on 
vertex, pubescence short and white on middle of cheeks, cheeks 
below with large patches of pale fulvous hair, and the inferior 
angle just below with long dense white pubescence, while just 
behind the inferior mandibular tooth is a small excavation den- 
sely covered with pale ochraceous pubescence, and the gular 
region back of this has long dense pale ochraceous pubescence. 
Thorax with pubescence ochraceous above, paling to white 
below, a patch of fuscous pubescence in center of mesonotum; 
mesonotum strongly and closely punctured; scutellum with a 
median longitudinal impunctate area, with strong punctures on 
either side, but not so closely punctured as the mesonotum, with 
hair all pale; pleura closely punctured; propodeum shining 
behind, where it is almost bare, laterally minutely roughened 
and quite densely pubescent, basal triangle tessellate and im- 
punctate; tegulse piceous, minutely punctate, pubescent basally 
and anteriorly; wings fuliginous, considerably darker apically, 
violaceous, nervures ferruginous, basal nervure beyond trans- 
verse median, second recurrent nervure entering second sub- 
marginal cell nearer apex than the first does to base; hind wings 
hyaline. 
Middle and hind coxae, trochanters and femora black, the 
