4 SECOND YARKAND MISSION. 



fringed with pale fulvous pubescence ; the margin of the apical segment emarginate ; the 

 emargination denticulate. Length 6J lines- In this species the head is a little wider than 

 the thorax, and narrowed behind the eyes. 



Hab. Taken in May, in the neighbourhood of Yarkand. 



7. MEGACHILE FTJLVA. 

 Femina. M. atra, thorace abdomineque hirsutisfulvo-aureis, pedibusferrugineis. 



Black ; the mandibles, scape of antennae, and the legs ferruginous ; the coxae, trochanters, 

 and tips of the mandibles, black ; densely covered with fulvous pubescence, sparingly so 

 on the vertex and basal margins of the intermediate abdominal segments ; the pubescence 

 on the legs is short and thin ; the anterior wings flavo-hyaline towards their base, beyond 

 which they are fuscous ; the nervures ferruginous at the base of the wings, beyond the stigma 

 they are rufo-fuscous ; the tegulae ferruginous. Eemale, length 7^ lines. 



Taken on the Yarkand Expedition ; the precise locality not known. 1 



8. MEGACHILE DENTIVENTEIS. 



Mas. M. pallide pubescens ; abdominis apice denticulate ; tarsis rufis. 



Black ; the face densely covered with white pubescence, that on the cheeks is also white, 

 but shorter and less dense ; on the vertex it is pale fulvous ; the mandibles stout and bidentate 

 the teeth rufo-piceous, the apical one black at the tip. The thorax and legs with white 

 pubescence ; the anterior femora and tibiae in front, and all the tarsi bright ferruginous ; 

 the anterior coxae armed with a stout spine ; wings hyaline, the anterior pair faintly clouded 

 at their apical margin ; the nervures ferruginous ; the tegulae black. Abdomen ; the apical 

 margins of the segments fringed with very pale fulvous-white pubescence; that at the 

 sides, and beneath, is white ; the apical segment with four teeth on its margin. Male, length 



5 lines. 



Sab. Neighbourhood of Yarkand. Taken in May. 



9. MEGACHILE SEBEATA. 

 Mas. M. pallide pubescens, abdomine oblongo, ano inflexo, spinuloso. 



Black; the face with pale fulvous pubescence, that on the cheeks cinereous; the 

 antennae fulvous beneath. Thorax clothed above with pale fulvous pubescence ; at the sides, 

 beneath, and on the legs, it is cinereous ; the tarsi ferruginous, with the basal joint of the 

 intermediate and posterior pairs, black above ; the anterior coxae dentate ; wings hyaline, 

 the anterior pair slightly clouded at the apex, the nervures ferruginous, the tegulae black. 

 Abdomen oblong, obtuse at the apex ; the two basal segments with pale fulvous pubescence ; 

 the apical margins of the segments fringed with pale pubescence ; the apical segment clothed 

 with short pale pubescence, its margin serrated ; beneath, the apical segment is produced 

 into a large triangular process, acute at its apex. Male. Length 5 lines. 



Hab. Neighbourhood of Yarkand. Taken in May. 



1 Probably, like some other specimens without labels, this may have been from the hills south of Yarkand. 



