OSIRIS.— ETJCERA. 109 



OSIRIS, Smith. 



1. Osiris tarsatus. 



Female. Length 4 lines. — Pale ferruginous, smooth and shining. 

 The head and disk of the thorax with a few shallow punctures ; 

 the clypeus convex, paler than the rest of the head, with scattered 

 distinct punctures ; the ocelli black. The scutellum and meta- 

 thorax very smooth and shining ; wings flavo-hyaline, iridescent, 

 with the nervures pale ferruginous ; the basal joint of the posterior 

 tarsi quite as broad as the tibice, and very pubescent. Abdomen 

 broadest at the base, and tapering to a point at the apex, which is 

 pubescent. 



Hob. Tunantins. 



This species is very like 0. pallidas in general aspect ; but the 

 form of the abdomen and of the basal joint of the posterior tarsi 

 distinguish it from that species. 



EUCERA, Scop. 



1. Eucera terminalis. 



Female. Length 7 lines. — Black. The face and vertex with black 

 pubescence, that on the labrum pale fulvous. The thorax clothed 

 above with ochraceous pubescence, on the sides and beneath it is 

 paler ; the legs with fulvous pubescence, the apical joints of the 

 tarsi ferruginous ; wings hyaline, faintly clouded at the apex ; 

 nervures dark ferruginous. Abdomen with pale ochraceous pubes- 

 cence at the base ; on the second and two following segments the 

 pubescence is of the same colour, but thin and short ; on the fifth 

 it is black ; on the terminal segment it is obscure ferruginous at 

 the sides. 



Male. The clypeus bright yellow, the labrum with yellow pubes- 

 cence ; the vertex and sides of the face with black, and the cheeks 

 with long whitish pubescence. The thorax and legs clothed as in 

 the female. The two basal segments of the abdomen with pale 

 fulvous pubescence, the rest with black : the margins of the seg- 

 ments laterally beneath with long pale pubescence. 



Hah. South of France. 



2. Eucera deceptrix. 



Male. Length 6 lines. — Black. The clypeus bright yellow ; the face 

 and vertex with pale fulvous pubescence, the cheeks with white : 



