MEGACHILE. 



61 



men shining and very finely punctured, the basal segment with 

 thin fulvous pubescence ; the lateral apical margins of the third, 

 fourth, and fifth segments with white fasciae, clothed beneath with 

 fulvous pabescence. 



Hah. Angara Eiver. 



^o 



3. Osmia rufitarsis. 



Female. Length 6 lines.— Black, the head and thorax with black 

 pubescence and very closely punctured ; the tarsi with bright fulvous 

 pubescence, the apical joints ferruginous ; wings fulvo-hyaline. 

 Abdomen finely punctured, shining, and clothed with fulvous 

 Ijubescence ; beneath with fulvous pubescence. 



Hah. Angara River. 



MEGACHILE, Latr. 



1. MegacMle intricata. 



Female. Length 5| lines. — Black. The face with pale golden 

 pubescence, on the vertex it is short, thin, and black ; the cly- 

 peus closely punctured, and with a longitudinal central carina. 

 Thorax above with short sparing black pubescence and a little pale 

 fulvous on the collar ; beneath it is pale, also that on the meta- 

 thorax ; the apical joints of the tarsi ferruginous : the basal joint 

 of the posterior pair with fulvous pubescence within ; wings sub- 

 hyaline. Abdomen densely clothed above with short fulvo-ferru- 

 ginous pubescence, beneath it is pale and glittering. 



Male. Closely resembles the female, but has the head propor- 

 tionately wider; the apical segment of the abdomen angulated, and 

 its apex slightly notched ; the anterior tarsi simple. 



Hah. Cape of Good Hope. 



There are several species of Megachile that are very similar to 

 each other : I am acquainted with three from India, three from 

 Africa, and one from Australia ; all these have a black head and 

 thorax and a fulvous abdomen. The present species most closely 

 resembles M. hicolor ; but from that species it differs in being smaller, 

 in the colour of the pubescence on the face, and also in that of the 

 abdomen being more ferruginous ; the male of M. hicolor has the 

 apical segment of the abdomen denticulate. 



2. Megacliile nasalis. 



Female. Length 6 lines. — Black. The face with sooty-black pubes- 

 cence ; the clypeus notched anteriorly and closely punctured. The 

 thorax closely punctured ; the sides and beneath with pale fulvo- 



