208 Mr. Edward Saunders on- 



is in very fine condition and the tliorax is more densely clothed 

 with longer and brighter brown hairs than in hicens, and its sculpture 

 is coarser giving it a duller appearance. The form of the 7th 

 ventral segment also is different, viewed sideways in this species it 

 is straight, in hicens it is elbowed. 



Andrena mayeti, Per. 



$ 4. Biskra, on Ammi visnaga, 18, v, 93 and 28 and 29, 



V, 94. {A. E. E.) 

 % 2. „ 27, V and 2, vi, 98. {F. D. M.) 



Andrena nigriventris, n. sp. 



9 . Caput et thorax nigra, albido hirsuta, hirsutie supra sub- 

 ochracea, antennis subtus apiceque testaceis, articulo tertio, tribus 

 sequentis simul sumptis subsequali, alls hyalinis, nervuris testaceis. 

 Abdomen supra testaceum, apice nigro, subtus nigrum ; pedes nigri, 

 tarsorum apicibus testaceis. 



5. Head and thorax black clothed with whitish hairs, those of the 

 vertex and mesonotum slightly tinged with yellow, apex and under- 

 side of the antennae pale testaceous, tegular pale, wings hyaline, 

 nervures pale testaceous, abdomen above testaceous, its extreme base 

 and the fifth segment black ; beneath with the 2nd and following seg- 

 ments black, legs black, calcaria and apices of the tarsi pale. Eather 

 short and compact in form, face densely clothed with more or less 

 decumbent white hairs, clypeus closely and rugosely punctured, 

 labrum with a flat shining lamelliform tubercle, orbital furrows 

 clothed with dense golden pubescence, antennoe with the 2nd joint 

 of the flagellum nearly as long as the next 3 together, mesonotum 

 very slightly shining closely punctured, propodeal area well defined, 

 with a central sulcature which does not reach the ajpex, there is 

 almost an indication of diagonal rugosities on each side of it, beyond 

 the area the propodeum is very finely rugulose and punctured, 

 abdomen finely and closely punctured, slightly shining, microscopic- 

 ally aciculate between the punctures, 2nd segment with a short 

 band of white hairs on each side, 3rd and 4th with entire bands, anal 

 fimbria whitish, golden at the extreme apex, segments beneath 

 fringed with pale hairs, scopaj of tibiae white. 



Long. 9 mm. 



^ 1. Hamman es Salaliin, on PicritUum vulgare, 9, iv, 

 97. {A. E. E.) 



