256 Mr. Cameron on 



than broad, gaping at the apex, the base broadly rounded. 

 Lateral hair fringe sparse, silvery. Legs black ; the apex 

 of coxae and trochanters ; the greater part of the femora 

 beneath ; and the tibiae and tarsi, except the apices of the 

 posterior, yellow. 



The $ has the clypeus slightly convex ; the apex pro- 

 jecting in the middle, black and with a short broad, blunt 

 tooth in the middle. The coloration is as in the <j> except 

 that the fifth segment is entirely black and the sixth nearly 

 entirely yellow. Pygidial area of equal width throughout ; 

 depressed before the apex, shining and sparsely punctured. 

 Length 7 — 9 mm. 



May be known from C. novarce by the median segment 

 wanting yellow marks ; by there being only a central basal 

 yellow mark on the second abdominal segment; by the legs 

 being broadly black at the base, by the third joint of the 

 flagellum being distinctly longer than the fourth ; by the 

 central lobe of clypeus being roundly convex and gaping 

 at the apex, &c. 



CERCERIS FERVENS, Smith. 



It is probable that this will prove to be identical with 

 C. novarce. So far as the description of the $ goes the 

 only difference is that va fervens there are two lines on the 

 scutellum ; but in both the females of Novarce I have 

 examined, there is a minute yellow mark on either side of it. 

 Smith's description of the $ differs moreover, it having the 

 sixth segment (not the fifth) yellow marked ; and apparently 

 the median segment wants the yellow marks. 



Smith, I may add, named, in Mr. Rothney's collection, 

 the $ of the species I have called Vischnu, fervens ; but it 

 does not agree with the description of fervens ; and my 

 specimen is certainly not the $ of Novarce. It is possible 

 that Smith has assigned the wrong <J to his fervens. 



