Hymenoptera aculeata collected in Algeria. 257 



Anthidium reticulatum, Mocs. 



$ 1. Between Medea and Lodi, alt, about 2,809 ft., on 

 Centaurea calcitrapa, 12, vii, 93. (A. E. E.) 



Anthidium stigmaticorne, Drs. 



^ 1. Biskra, north of railway, Kilom. 199, on Tcucrium 



polmm, 28, v, 94,. (A. E. E.) 

 (4th and 5tli joints of the antennae testaceous.) 



Stelis aterrima, Pz. 

 $ 1, $ 3. Philippeville, 20, vi, 98. {F. D. M.) 



Stelis cassiop/ea, n. sp. 



S. phooopteroe affinis, facie niagis rotundata, capite thoraceque 

 opacis, densissime punctatis facile distinguenda. 



(Jj?. So closely allied to jj/iosopfcro, K., that it will only he 

 necessary to point out its differential characters. The head and thorax 

 are much more closely punctured so that their surface is quite dull, 

 and they are more evenly and closely clothed with grey hairs, the 

 abdomen on the other hand in the $ is less closely though quite as 

 largely punctured especially on the 3rd segment. The abdominal 

 puncturation in the males of both species is very similar, but the 6th 

 segment in the ^ of phvoptera has a stronger apical angle. In both 

 sexes of the new species the face is broader and therefore rounder 

 and in the ^ the eyes are more convergent. 



Long. 7-8 mm. 



$ 2. Biskra, near Kilora. 199, visiting Amlerhoa lijppii, 12, 



iv, 95. {A. E. E.) 

 ^ 1. „ above the barrage, visiting Amherhoa lij)pii, 



8, iv, 97. {A. E. E.) 

 $1. „ flying about "adobe" house walls, 27, ii, 



97. {A. E. E.) 

 $ 1. Bone, 30, iv, 96. (A. E. E.) 



Stelis nasuta, Ltr. 



^ 1, $ 1. CWstantine, 13, v, 95. (A. E. E.) 



Stelis vachali, Per. 



$ 1. Biskra, visiting Antirrhinum ramosissimum , 29,u\, 



97. (A. E. E). 

 % 1. „ on Atrnctylis scrratuloidcs, 13, v, 97. 



{A. E. E) 

 trans, ent. soc. lond. 1908. — part il (sept.) 17 



