134 MR. smith's besceiptions of htmenoptebous insects 



above with short black pubescence ; beneath, the pubescence is long, 

 rigid, decumbent, and shining. 

 Hub. Bachian; Amboyna. 



3. Megachile Clotho. iVf. nigra; mandibuUs fortibus et porrectis ; 

 alis fuscis. 



Female. Length 12 hnes. Deep opake-black ; the anterior margin of 

 the clypeus transverse, with an angular tubercle in the middle ; man- 

 dibles stout and porrect; the labrum oblong, rounded in front, and 

 fringed with a row of rigid hairs. Thorax densely pubescent. The 

 wings dark fuscous with a violet iridescence. Abdomen black ; the 

 basal segment above with a dense sooty-black pubescence. 



Hab. Bachian. 



This insect very closely resembles M. tuberculata, the dark wings being 

 almost the only difference. 



4. Megachile Alecto. M. nigra; clypeo antice pube alba vestito ; 

 alis fuscis. 



Male. Length 6 lines. Black, clothed with black pubescence ; the an- 

 terior margin of the clypeus with a yellowish-white pubescence, a tuft 

 of the same colom* between the antennae ; the pectus has a griseous 

 pubescence. The wings dark brown with a violet iridescence. Ab- 

 domen : the apex obliquely truncate ; the margin of the terminal 

 segment notched in the middle, from which a central carina runs to 

 the base of the segment. 



Hab. Dory. 



M. Guerin has described a species in the ' Iconographie du Regne Ani- 

 mal,' which is closely allied to the present species ; it is from the Isles of 

 Madagascar and Bom-bon, and named M, mystacea. 



5. Megachile foliata. M. nigra ; capite thoraceque dense punc- 

 tatis et pube nigra vestitis ; segmentis duobus apicalibus pube ferru- 

 ginea vestitis ; alis fuscis. 



Female. Length 8 lines. Black, clothed with black pubescence, closely 

 punctured ; the mandibles very stout and porrect ; the legs stout ; the 

 tibiae rugose exteriorly, the posterior pair with pale pubescence ; the 

 basal joint of the tarsi within ferruginous ; the claw-joint of the tarsi 

 rufo-piceous. Abdomen : the two apical segments clothed with fer- 

 ruginous pubescence, and the three segments beneath have pubes- 

 cence of the same colour. 



Hab. Bachian. 



6. Megachile ventralis. M. nigra, delicatule punctata; abdo- 

 mine subtus fulvo dense pubescente ; ahs subhyalinis. 



Female. Length 6| lines. Black, closely and finely punctured, and shining; 

 mandibles stout, striated, and subdentate ; the front of the head and 

 sides of the thorax with black pubescence. Wings fusco-hyaline. 



