Hymenoptera acnleata collected in Algeria. 409 



segment, a wide nearly straight band on the 2nd and a very slightly 

 bi-sinuate band on the 3rd to 6th testaceous. These bands are 

 all continuous on the ventral segments. Legs testaceous yellow, 

 base of the anterior femora above, about three-fifths of the inter- 

 mediate femora above, and the posterior femora, except at the apex, 

 black. 



Head and thorax closely and rugosely punctured, clothed with short 

 greyish white hairs, clypeus deeply and semicircularly emarginate, 

 pronotum rather produced at the sides and sharply angulated, post- 

 scutellum shining, propodeum very declivous, its sides rounded, not 

 much excavated posteriorly, the sides of the excavation irregularly 

 and diagonally striate, wings nearly hyaline, but smoky along the 

 costal margins, nerves and stigma dark brown, abdomen coarsely and 

 irregularly punctured on the basal segment, finely but irregularly on 

 the second, finely closely and regularly on the rest, beneath closely 

 and finely punctured throughout, and with a larger (but still rather 

 fine) puncturation scattered over the surface — observable chiefly on 

 the 2nd and 3rd segments — legs simple. 



Long. 9 mm. 



A slenderer species than usual but bearing no very marked 

 characters, its entirely black flagellum combined with the 

 wide abdominal bands separate it from any other species I 

 can find described. 



$ 1. Biskra, 21, iii, 95. (A. E. E.) 



$ 1. „ 23, iii, 97 on Tamarix. (A. E. E.) 



$ 1. Bone, 1, v, 96. (A. E. E.) 



Odynerus (Ancistrocerus) atropos, Lep. 



$ 2. Biskra, sandy banks bordering the fallow 

 near the market garden by the river and 

 railway near kilometre 199, 17, iii, 94. 

 ^ 4, $ 4. Biskra, near the Barrage, 22, iii-iv, 97. 



"Makes a curved tubular portico to its 

 burrow with irregular elongate longitudinal 

 loopholes ; tube 18 mm. long and 35 mm. 

 external diameter." 



In one $ there are 6 submarginal cells in the right 

 wing and 4 in the left, all the other specimens have the 

 normal 3. A character observable in the $ which does not 

 appear to have been noticed in descriptions is that the 

 clypeus is practically 3-dentate — as there is a very small 

 tooth in the centre of the eniargi nation. 



