186 HYMENOPTERA. 



cence, that on the cheeks is long, dense and white. Thorax 

 strongly punctured ; wings hyaline, a fuscous cloud occupies the 

 marginal cell and traverses the apical margins ; the tegulse testa- 

 ceous, the nervures ferruginous ; legs red, the intermediate and 

 posterior tarsi black, the claws red. Abdomen short and obtuse 

 at the apex ; on each side the margins have a short fringe of 

 white pubescence, very narrow, but entire on the fifth ; the 

 apical margin entire, the third, fourth and fifth bands continued 

 beneath. 

 Hab. Brazil ; Rio Tapajoz. (Coll. H. W. Bates, Esq.) 



127. MEGACHILE L^ETA. B.M. 



Female. Length 6 lines. Black, the face and the mandibles 

 exteriorly covered with short pale ochraceous pubescence, that 

 on the cheeks and thorax beneath is of the same colour ; in front 

 of the anterior stemma a tuft of black pubescence. Thorax, the 

 disk delicately punctured, shining ; the scutellum highly polished 

 and somewhat elevated, the sides of the metathorax covered with 

 golden-yellow pubescence ; wings subhyaline ; the legs red, the 

 basal joint of the posterior tarsi broad and flat, equal in size to 

 the posterior tibiae. Abdomen short and broad; the basal seg- 

 ment covered with golden-yellow pubescence, and the margins 

 of the segment having bands of the same colour; beneath, 

 densely covered with bright fulvous pubescence. 

 Hab. Brazil ; Rio Tapajoz. (Coll. H. W. Bates, Esq.) 



128. MEGACHILE NUDIVENTRIS. 



Female. Length 6-6i lines. Black, the face has a sparing 

 short black pubescence, and a mixture of griseous hairs at the 

 sides of the clypeus, in the middle of the anterior margin of the 

 clypeus is a small notch, the antennae beneath fulvous ; the pu- 

 bescence on the disk of the thorax anteriorly is black, posteriorly 

 and at the sides of the metathorax it is griseous ; the tarsi be- 

 neath covered with bright fulvous pubescence, the legs other- 

 wise have a short scattered griseous pubescence, slightly fuscous 

 on the anterior legs in front, the calcaria pale testaceous ; the 

 basal segment of the abdomen covered with griseous pubescence, 

 beyond which it is naked and has an obscure metallic tinge ; be- 

 neath, the pollen-brush is nearly white. 

 Hab. Brazil. (Coll. W. W. Saunders, Esq.) 



129. MEGACHILE SUSURRANS. 



Megachile susurrans, Halid. Trans. Linn. Soc. xvii. 320. 13. 

 Hab. St. Paul's, Brazil. (Coll. W. W. Saunders, Esq.) 



