AMD^E. 



aiul with ;in iiitorruptcd narrow while iiiii;;c on the apioal marf^ins 

 of tho scmiu'iits ; (lie ajjioal sogmenl, willi ciiK^-couH pile; clolliod 

 beneath with white pubescence in the middle, that at tho sides 

 being black. 



H,ih. Villa Xova. 



48. Megachile incongrua. 



Femdlc. Length 4 lines. — lUack, with tho legs ferruginous. The 

 face densely covered with yellowish-white ])ubcsccnce ; llie clieoks 

 have a similar pubescence, but it is longer; the tips of the nuui- 

 dibles ferruginous. The pubescence on the thorax is similar to 

 that on the head; tho mcsothorax and scutcllum closely and finely 

 punctured ; wi)igs subhyaline, their apical margins and also the 

 marginal cell with a fuscous cloud, the nervurcs and tegulcc ferru- 

 ginous. Abdomen shining, with the apical segment opaque, 

 covered with fine shallow punctures ; tho apical margins of the 

 segments with a narrow fringe of white pubescence, usually more 

 or less interrupted ; clothed beneath with white pubescence. 



Male. The same length as the female ; the logs ferruginous, but 

 more or less stained with fuscous, the tarsi black above and fringed 

 with white pubescence. Tho front clothed with fulvous ])ubos- 

 cenCe, the checks thickly bearded with pale pubescence ; the an- 

 terior tarsi simple, the trochanters with a sharp angular spine ; 

 wings as in tho other sex. Abdomen oblong, the base deeply con- 

 cave, the margins of the segments constricted; the apical margins 

 with a white fringe laterally ; the margin of the apical segment 

 rounded ; beneath, the segments have a thick white marginal 

 fringe. 



Hab. Tunantins. 



49. Megacliile cornuta. 



Ftmale. Length 6| lines. — Elack ; the clypeus deeply incised, the 

 lateral angles produced into angulated compressed horns. The 

 face with short white pubescence ; the checks, the sides of the 

 thorax, and the legs with a short thin downy pubescence ; the 

 sides of the metathorax with a white fringe ; wings hyaline, with 

 a fuscous cloud at their apex beyond the marginal cells, and which 

 also enters the marginal cell ; the tarsi fulvous beneath, their 

 apical joints ferruginous. Abdomen oblong ; the apical margins 

 with narrow white fascite: clothed beneath with pale fulvous 

 pubescence. 



Ilah. Mendoza. 



50. Megachile anthidioides. 



Female. Length 5 lines. — Black ; the second, third, and fourth seg- 

 ments of the abdomen with a broad fringe on the apical margins, 

 laterally, of yellow pubescence. The flagellum fulvous beneath. 



