146 



MODERN CLASSIFICATION OP INSECTS. 



Some of the species subsist upon the sap exuding from wounds in 

 various trees. It is in such situations in the New Forest that the 

 rare Synchita (Cicones Curt.) variegata Hellw. has been taken by 

 Messrs. Hope and Rudd. I have found the larvse of Rhyzophagus 

 (Cerylon) bipustulatus {Jig. 12. l.) in company with the perfect insect 

 under the bark of trees in Kensington Gardens. They are long, 

 narrow, and slightly convex, with six short legs ; the antennae and 

 trophi also short, and the terminal segment is furnished with a pair of 

 small diverging spines. Mr. Curtis forms this genus into a family 

 named Cerylonida?, considered to be allied to the Heteromerous H}'^- 

 pophlaeus ; but its entire habit, structure of the mouth, and economy 

 are too near to the other insects amongst which it is here introduced 

 to allow the variations in the tarsi, which are here also Heteromerous, 

 to prevail. 



Fig. 12. 



The rare Nemosoma elongatum {fig. \2.5.^Jig. 12. 4. its maxilla) 

 is found under the bark of old elm rails, frequenting the firmly fixed 

 barkj and in company with great numbers of Hylesinus varius, which 

 appear to me to make the labyrinth-like passages which have been at- 

 tributed to the Nemosoma. Mr. T. Ingall discovered this insect in 

 profusion near Sydenham, and was so kind as to conduct me to the 

 spot, where I found many specimens. During the day they were slug- 

 gish ; but I observed that their motions by candleliglit were much 

 more active, reminding me of a small Lathrobium : when they ap- 

 proached their companions they opened their strong jaws very widely, 

 and attempted to bite each other. In company with these I also dis- 

 covered the larvae {Jig. 12. 2.), which are very long, narrow, and sub- 

 depressed, having a very quick motion when excited, and when 

 touched throwing themselves into various attitudes like a small Sta- 



