186 
BRITISH BEES. 
front, and the process rounded; mandibles obtuse, sub- 
bidentate ; cibarial apparatus short ; tongue deeply 
emarginate and bilobate, the lobes fringed with short 
setse; paraglossce half the length of the tongue, abruptly 
terminating and lacerate, and setose at the apex; labial 
palpi much shorter than the paraglossse, four-jointed, the 
joints equal and each snbclavate; labium about the same 
length as the tongue, its inosculation acutely angulated; 
maxilla broad, lanceolate, the length of the tongue; 
maxillary palpi six-jointed, not so long as the maxillse, 
the two basal joints the longest, the rest equal, short, and 
subclavate, the apical one rounded. Thorax subquad¬ 
rate, very pubescent, the prothorax inconspicuous; scu- 
tellum transversely triangular or semilunat e, posts cut ellum 
lunulate; metathorax abruptly truncated, and densely pu¬ 
bescent, especially laterally, for the conveyance of pollen; 
wings with three submarginal cells and a fourth slightly 
commenced, the second and third each receiving about 
their centre a recurrent nervure; legs all pubescent, the 
anterior and intermediate on their external surface chieflv, 
their jjlanta also setose ; the posterior coxa , trochanters, 
femora , and tibia very hirsute, especially beneath, their 
tarsi entirely setose; claws bifid. Abdomen truncated 
at the base, subconical with a downward bias, the seg¬ 
ments with bands of closely decumbent nap, and the sur¬ 
face of all more or less deeply or delicately punctured; 
the basal segment in the centre, beneath, with a longi¬ 
tudinal tuft of long hair. 
The male differs in having the mandibles more dis¬ 
tinctly bidentate, and in being less densely pubescent, 
especially upon the legs. In general aspect it is very 
like its female. 
Note. The genus Cilissa has, superficially observed, 
