58 THE ENTOMOLOGIST. 



G. terminatus, Marsh., is considerably larger than G. pygmceus ; 

 it is a longer insect and less contracted behind. As a rule, it seems 

 to have the apex, sides, and suture of the elytra of a light reddish 

 colour, but is occasionally found quite black. The punctuation 

 of the striae of the elytra is much stronger than in C. pygmceus, 

 and this, with the other points of difference mentioned, will serve 

 to distinguish it. Dr. Power tells me that he has always taken 

 G. terminatus flying (generally near a wood- stack), and that he 

 cannot identify it from dung, in which C '. pygmceus abounds. He 

 has taken it at Merton, Notting Hill, Ealing, Cowley and 

 Hampstead, and it has occurred in the Hastings district. 



C. pygmceus, 111., one of the commonest species, is very variable 

 in colour ; the distinctions above given will separate it from 

 G. terminatus. Light specimens may be distinguished from 

 C. nigriceps by invariably having a dark space round the 

 scutellum, which is absent in the latter species. It is often 

 almost entirely black. 



C. nigriceps, Marsh., is at once distinguished by its light- 

 coloured elytra and dark thorax ; it looks very like a minute 

 G. quisquilius, but is half the size of that insect, and much 

 rounder, more convex, and less distinctly striated. It occurs 

 in Surrey, Norfolk, and other localities. 



The fifth group contains C. minutus, C. lugubris, C. granarius 

 and C. analis. 



At first sight these species very closely resemble each other ; 

 they are all more or less pointed species, and have the apex 

 of the elytra of a more or less reddish colour. They are larger 

 than the species of the preceding group, but smaller than any 

 species of the other groups, except perhaps C. quisquilius. 



G. minutus, F., is larger than either of the other three species ; 

 it is round and not much pointed behind, and is broad and very 

 smooth. The interstices of the elytra are almost impunctate, 

 and the stria? of the elytra are obsolete at the apex. This is one 

 of our rarest species ; it does not occur in dung, but in damp 

 situations. Dr. Power has taken it at Notting Hill, but I know 

 of no other locality. 



C. lugubris, Payk., is distinguished from C. minutus by the fact 

 that the striae of the elytra are plainly continued to the apex, and 

 from C. analis, which it very much resembles, by having the 

 interstices of the elytra smooth (like C. minutus), whereas in 



