HYMENOPTEKA. 321 



rior half of the clypeus, a Hne on the inner orbit of the eyes, the 

 labrum and mandibles, white ; the tips of the mandibles "ferrugi- 

 nous ; the head, thorax and base of the abdomen have a thin 

 griseous pubescence ; beneath, the hinder margin of the meta- 

 thorax sometimes with a yellow spot ; the coxae, trochanters and 

 femora black ; the tips of the latter, the tibiae and tarsi, pale 

 yellow; the intermediate femora serrated beneath; the tibiae 

 have a black stripe behind ; the wings hyaline, the nervures and 

 hinder mai-gin of the tegulae ferruginous! Abdomen black : the 

 second segment with a large compressed cm-ved tooth beneath ; 

 the sixth segment with a small trigonate tubercle in the middle. 

 Var, /3. The basal segment with a narrow line on each side, 

 and the two following segments with a curved stripe on each side. 

 Hob. Albania. 



16. Bembex Rossii. 



Bembex Rossii, Dahlb, Hym. Europ. i. 492. 31 . 

 Hah. Spain. 



17. Bembex notata. . , 

 Bembex notata, Dahlb. Hym. Europ. i. 491. 28. 



Hab. Rhodes. 



18. Bembex TURCA. 



Bembex turca, Dahlb. Hym. Europ. i. 488. 1 1 . 

 Hab. Rhodes. 



19. Bembex basalis. 



Bembex basahs, Dahlb. Hym. Europ. i. 490. 20. 

 Hab. Rhodes. 



20. Bembex flavescens. 



Male. Length 7 lines. — Head and thorax black ; the labrum, 

 clypeus, inner orbit of the eyes, the scape in front, and the man- 

 dibles, yellow ; the tips of the mandibles ferruginous ; the outer 

 orbit of the eyes yellow ; the flagellum fulvous beneath, and four 

 or five of the apical joints subpectinate beneath. Thorax ; a 

 narrow line on the collar, two abbreviated ones on the meso- 

 thorax in front, a stripe over the tegulae, a narrow line on the 

 posterior margin of the scutellum and post-scutellum, a curved 

 one on the metathorax, and its posterior angles, yellow ; the sides 

 of the thorax irregularly maculated with yellow ; the legs yellow, 



