136 HYMENOPTERA ACULEATA. 



also in the ? are uninterruptedly white in front. In these 

 latter characters this species resembles Wesviadi, but the 

 spinose mesopleurse and the finer puncturation of the 

 somewhat dull apical dorsal valve in both sexes will dis- 

 tinguish it easily; this species is also peculiar in having 

 the abdomen of a more regularly elliptic form than its 

 allies. 



L. 5-6 mm. 



Eare ; Chobham ; Tunbridge Wells. Battersea Fields ; 

 (Shuchard) ; Earlham, Norfolk; (Bridgman). Exeter; 

 {Parfilt). Gloucestershire ; {Ferhins). 



C. Wesmaeli, V. d. Lind. — Black, shining ; head and 

 thorax closely and rather finely punctured, scape of the 

 antenna yellow in front, pronotal collar in the ? generally 

 with two spots, or a transverse band yellow, tubercles 

 yellow in both sexes, scutellum generally yellow in the ? , 

 mesopleuras not spinose, propodeum with the basal area 

 shining and smooth, surrounded and divided down the 

 centre by deeply crenate sulcatures, and bounded laterally 

 below the area by crenate impressions ; abdomen with the 

 apical dorsal valve very shining and smooth in both sexes, 

 its punctures exceedingly large and scattered, its apex red ; 

 femora yellow at the extreme apex in both sexes, and also 

 underneath in tlie S, anterior and intermediate tibiae 

 yellow, except a black line behind, posterior tibiae widely 

 yellow at the base, tarsi pale at tlie base. 



L. 5-6 mm. 



Common in sandy localities and generally distributed. 



C. elongatulus, V. d. Liiid. {propinquus, Shuck. ; hya- 

 linus, Shuck.; ohliquus, Shuck, j juilUdip alp is, Shuck.; 

 transversalis, Shuck. ; hdeipalpis, Shuck.; proximus, Shuck. ; 

 scutellaris, Smith). — Duller and less brightly coloured 

 than the preceding the S may easily be known by the dull, 

 deeply strigose basal area of the propodeum and by the 

 form of the intermediate tibije, which are very thin at the 

 extreme base and then rather suddenly thickened; man- 



