MEGACHILE. 81 



behind with white pubescence ; the coxae have each a stout blunt 

 spine ; the intermediate coxae have a long and more slender acute 

 spine, and the femora are incrassate. Abdomen with the three 

 basal segments thinly clothed with erect pale fulvous pubescence, 

 the fourth and fifth have their apical margins fringed with short 

 pale pubescence, and the apical margin of the sixth has a small 

 notch in the middle. 



Hob. Mexico, Oajaca. 



57. Megachile deceptrix. 



Female. Length 5| lines. — Black, its pubescence white, the abdo- 

 men with a purple tinge. The head and thorax closely punctured ; 

 the face densely pubescent ; the clypeus strongly punctured ; tho 

 flagellum fulvous beneath ; the cheeks with dense pubescence. 

 Thorax with a line of white pubescence from the tegulae passing 

 along the base of the scutellum ; the legs rufo-piceous beneath ; the 

 tarsi with fulvous pubescence beneath ; the wings subhyaline. The 

 apical margins of the segments of the abdomen with narrow white 

 pubescent fasciae; the basal segment thinly pubescent in the 

 middle and densely so at the sides; beneath, the pubescence is 

 dense and of silvery brightness. 



Hob. St. Domingo. 



58. Megachile orbata. 



Male, Length 6 lines. — Head and thorax very closely punctured 

 and opaque ; the face densely clothed with pale pubescence, that 

 on the cheeks is white ; the flagellum of the antennae fulvous be- 

 neath. Thorax with white pubescence ; on the disk it is very 

 sparing, on the metathorax, the sides, and beneath it is longer and 

 much more dense ; all the tarsi yellowish white, the anterior pair 

 broadly dilated and fringed behind with curled white pubescence, 

 the first joint elongate and broadest at its apex, the following 

 joints small and transverse, diminishing in size to the apical joint ; 

 the femora and tibiae pale beneath ; the coxae armed with a stout 

 spine ; wings hyaline, slightly fuscous beyond the enclosed cells, 

 the nervures rufo-fuscous. Abdomen oblong ; the apical margins 

 of the segments with narrow pale pubescent fasciae ; the basal seg- 

 ment deeply concave above, the second segment with a deep trans- 

 verse channel at its basal margin ; the abdomen finely punctured ; 

 the apical segment rugose, and with a deep notch in its apical 

 margin. 



Hah. St. Domingo. 



59. Megachile valida. 



Female. Length 7 lines. — Black ; the pubescence on the head and 

 thorax white, that on the abdomen yellowish-white. The head 

 closely and very finely punctured ; the face and cheeks densely 



