6'2 COLEOPTERA. 



34. Choleta colonoides, Kraatz, Stett. Ent. Zeit. xii. 



169,35; Muiray, Mon. of Gen. Catops,ip.'77,sp.^o, 

 fig. 48; J. A. Power, Zool 8997 (1864), Catops. 

 One specimen was taken, at the end of March, 1861, by 

 Dr. Power, at the Holt Forest, Hampshire, from the debris 

 of fern, in an old hovel. 



The o;radual and slight thickening; of the club of its an- 



n ~ C3 



tennas will distino;uish this insect from any species of Colon, 

 to several of which it bears a great superficial resemblance. 



From its ally. Cholera sericea, it may be known by its 

 being smaller, with the elytra not truncate, and the trans- 

 verse wrinkling stronger ; the antennte, also, are finer, and 

 much less distinctly clubbed. 



It also somewhat resembles C. anisotomoidei^, but differs 

 from that species in having the antennae dark at the apex, 

 the body contracted behind from the shoulders, and the 

 elytra transversely strigose. 



35. Hydxobius Perrisii, Fairmaire, Ann. de la Soc. Ent. 



de France, 1855, Bull. p. Ixxv. ; E. C. Rye, Zool. 

 8921 (1864); C. O. Waterhouse, Ent. M. Mag. 

 vol. i. p. 139. 

 I detected a male and two females of this species amono; 

 some undetermined Anisotoniidce in the British Collection 

 of the Rev. H. Clark; and Mr. C. Waterhouse has sub- 

 sequently found another among some old British Coleoptera 

 belonging to his father, believed to have come from Scotland. 

 The large size, short antennae and extremely coarse punc- 

 tuation of this insect at once distinguish it from its allies, 

 though it is at first sight not unlike a very fine specimen of 

 Ajiisotonia fo/va, from which its five-jointed hinder tarsi 

 remove it generically. 



It is about two lines in length ; reddish-brown, shining. 



