Hymenoptera aculeata collected in Algeria. 563 



Ceropales albicinctus, Ross. 



$ 4, $ 1. Biskra, on Ammi visnaga, 18. v. 93. and 23. 



v. and 22. vi. 97. A. E. E. 

 ? 6, ? 1. Biskra, 16—17. v. 98. F. D. M. 

 $ 5. Biskra, 23. v.— 9. vi. 98. F. D. M. 

 $ 1. Le Tarf, on Fcenicuhom vulgare, 24. viii. 96. 

 A. E. E. 

 The specimens vary exceedingly in size, much as do 

 those of Ceropales maculatus in this country. The males as 

 a rule are smaller than the females, but I have a $ measur- 

 ing nearly 12 m.m. in length, and Mr. Morice has a $ 

 measuring only 5 m.m. All the specimens are of the 

 variety with very wide yellow abdominal bands, which 

 often cover half the segment. 



Ceropales variegatus, Fab. 



^ 1. Biskra, on Ammi visnaga, 17. v. 97. A. E. E. 

 $ 1. Biskra, 16. v. 98. F. D. M. 



