156 



HYMENOPTERA. 



'M. Megachile denticulata. B.M. 



Mcfrachilc denticulata, Fairm. Voy. Abyss. (Fer. tV Gal.) iii. 447. 

 t. 29. f. 12 c?, 13 ?. 



Gne'r. Voy. Abyss. (Lefeb.) vi. 363. 

 Hab. Abyssinia. 



37. Megachile Atropos. 



Female. Len<,'tli 5 lines.— Black, the face naked, deeply jmnc- 

 tured, the margin of the ely])eus entire, transverse ; the man- 

 dibles stout, their ajneal margins straight, meeting beneath tlu^ 

 clypeus, rather finely sculjjtured longitudinally, more deeply so 

 at their base. The disk of the thorax covered with a black 

 velvety pubescence, the scutellum produced backwards ; wings 

 yellowish towards their base, faintly clouded towards their apex, 

 the nervures testaceous ; the legs have a black j)ubescence ; the 

 apical joints of the tarsi fcn-uginous, the posterior legs slightly 

 so towards their base. Abdomen short, very convex ; the mar- 

 gins of the segments rufo-testaceotis as well as the basal segments 

 beneath ; the pollen-brush is of a ]mle glittering yellow at the 

 base and black towards the apex of the abdomen. 

 Hab. The Gambia. (Coll. F. Smith.) 



38. Megachile capitata, n. s. B.M, 



Male. Length 2i lines. — Black, the face covered with pale 

 jjubescenee, which is yellowish towards the clypeus ; head much 

 wider than the thorax, the antennie ferruginous beneath. Thorax, 

 the pubescence griseous, the legs rufo-testaceous, anterior tarsi 

 simple ; wings hyaline, iridescent, their apical margins slightly 

 clouded, tegulae and nervures rufo-testaceous. Abdomen short, 

 obtuse at the apex, at the base a little long griseous pubescence, 

 the margins of the segments have a narrow fascia of pale j)u- 

 bescence ; the apical segment vertical, covered with short white 

 pubescence, its margin bidentate in the middle, the teeth short, 

 and as well as the abdomen beneath rufo-testaeeous. 



Hab. The Gambia (Kendall). India (Coll. W. W. Saunders, 

 Esq.). 



39. Megachile torridus, n. s. B.M. 



Female. Length 4^ lines. — Head and thorax black, the j)u- 

 bescence on the face is fusco-ferruginous, the basal joint of the 

 anteunai dark feiTuginous. Thorax, the pubescence on the disk 

 is short, thin, and fulvous, at the sides of the metathorax it is 

 dense and of a paler colour ; wings fulvo-hyaline and having a 

 broad dark fuscous margin, the tegulae and nervines fulvous ; 

 legs ferruginous ; the three basal segments of the abdomen fer- 



