258 Mr. Frederick Smith on Aculeate Hymenoptera. 



Abdomen : the apical margins of the segments with 

 fasciae of pale yellow pubescence ; beneath^ clothed with 

 silvery white pubescence. 



Hab. Champion Bay. 



In the British Museum. 



6. Megachile nasuta. 



Female. Length 6 lines. Black: with the tip of the 

 abdomen red. Head quadrate, closely and evenly punc- 

 tured; the clypeus elevated, forming in front a smooth 

 shining hollow space, coarsely punctured above, the 

 margin irregular, sub-dentate ; the face with cinereous 

 • pubescence. The pubescence on the sides of the thorax 

 and on the legs, cinereous, nearly white, that on the 

 basal joint of the tarsi within, pale fulvous; the claws 

 ferruginous. Abdomen: the basal segment covered 

 with white pubescence, the apical one has a fulvous 

 patch above ; beneath, clothed with pale fulvous pubes- 

 cence. 



Hab. Champion Bay. 



In the British Museum. 



Gen. Ceocisa. 

 Crocisa alho-rnaculata. 



Female. Length 6 lines. Black, variegated with snow 

 white spots. Head clothed with white pubescence, a 

 snow-white spot at the base of the mandibles. Thorax: 

 the sides clothed with white pubescence; in the white is 

 a small ovate black spot, and a transverse black line ; the 

 mesothorax with a white ovate spot on each side in frCnt, 

 an oblong line between, another in front of the tegul^, 

 and four ovate ones on the disc ; the scutellum deeply 

 notched, a tuft of white hair in the notch; wings fuscous, 

 the posterior wings and base of the anterior pair sub- 

 hyaline ; also two or three small hyaline spots just beyond 

 the enclosed cells of the front wings ; the tibias and basal 

 joint of the tarsi white outside. Abdomen: a white spot 

 on each side at the basal margin, and two united spots on 

 each side of the first segment; the second segment has a 

 broad interrupted white fascia on its apical margin, 

 which also runs up the sides laterally; the third and 

 fourth segments have two ovate spots on each side, and 

 the fifth segment a simple spot ; the segments have a 

 spot on each side beneath. 



Hab. Champion Bay. 



