416 Mr. E. Saunders on 



and densely fringed posteriorly with very short fine white hairs, 

 second segment with a pale apical band beyond which is a mem- 

 branous appendix, which in the g bears a row of elongate 

 punctures ; beneath with the second segment more shining than the 

 rest and strongly punctured, with the apex pale as on the upper-side. 

 Legs fulvo-testaceous, paler in the <$ , extreme base of the femora 

 piceous. 



Long. 7-8 mm. 



$ 1. Biskra, near railway, kilometre 199, in the scrub 

 between the fringe of reeds and the farm mule-track, 

 22, iv, 97. (A. E. E.) 



$ 1, $ 1. The same place, 25, iv, 97. {A. E. E.) 



The $ and £ are so different in form that I feel great 

 diffidence in uniting them, at the same time their colours 

 are so similar and the locality identical that I hope I 

 have done right ; the $ is of the ordinary form of a 

 Microdynerus, but the £ more resembles those species of 

 the minutus group, with constricted petioles, crueniatus, 

 catoni, etc., but is much more elongate. 



POLISTES. 



Of this widely-distributed genus, numerous specimens 

 have been brought home by Messrs. Eaton and Morice, 

 all of which belong to the gallica group — but the 

 majority are females which in the present state of our 

 knowledge cannot be referred for certainty to their 

 respective males. Dr. F. F. Kohl (Ann. d. K. K. Naturhist, 

 Hoftnuseums, Wien, Band xiii, 1898, p. 87, taf. iii) 

 describes and figures the males of five species of this group, 

 which appear to be easily distinguishable, and of these 

 Mr. Eaton has brought home two. 



$£ are recorded from Biskra, Boae, Medea, and Mustapha 

 Superieur. (A. E. E. and F. D. M.) 



POLISTES DUBIA, Kohl. 



$2. Biskra, in the grounds of Chateau Landon, and in 

 the fields between that and The Negro Village, on Ammi 

 visnaga, 24, v, 93 ; " eyes " in life " subolivaceous." (A. E. E.) 



POLISTES F(EDERATA, Kohl. 



£ 1. Bone, near the Plage, 28, xi, 93. {A. E. E.) 



