248 



[^larch 



The following specific points also occur to me among the Hydradephaga and 

 Pliilhydrida : — 



Our rejected Eydropori, minutissimus, and hisulcatus (bju. of our equally re- 

 jected unistriatus) are still credited to us. H. derelictus, Clark, is (as in Schaum) 

 attributed to erythrocephalus, Linn. ; but, from an examination of Dr. Power's 

 original specimen, I must say I think this assertion of identity cannot be sustained. 

 My suggestion (Ent. Ann., 1869) that AgabiLS nigro-osnms, Er., should bo re-named 

 Erichsoni, in consequence of the priority of the same Marshamian name, is here 

 anticipated. Helophorus dorsaliSy Marsh., is reinstated, but dorsalis, Muls., is 

 erroneously attributed to it as a synonym. The latter has long been re-named 

 Mulsanti by me, a correction adopted by Mr. Crotch. Ochthehius rufimarginatus, 

 St., Er., is (erroneously, as I think) considered a var. of 0. hicolon. Germ. 0. 

 Jiihernicus, Curtis, is exalted over the Stephensian punctatus ; — De Marseul and 

 Stein separating the tw», and giving the former as a syn. of hifoveolatus, Waltl., a 

 species not yet recorded as British, as far as I know. In Wat. Cat. they are given 

 as identical, punctatus having the priority. Hydrosna concolor, Waterhouse, Ent. 

 Mag., I, 1833, 293, not appearing in the synonymy of Wat. Cat., is given as a dis- 

 tinct species. From an examination of Mr. Waterhouse's notes, I find that this 

 insect is H. riparia, apparently immature, and accidentally omitted from his Cat. 



Among the Brachelytra I find the following : — 



Ischnoglossa corticalis, Steph., and Mycetoporus hrunneus, Marsh., respectively 

 recognised as identical with I. rufo-picea, Ktz., and M. rujicornis, Ktz., are never- 

 theless deposed in favour of the two latter names, in spite of the evident priority 

 of the former. Aleochara Kirhyi, Steph., erroneously coupled with grisea, Ktz., — 

 the aXgarum of Fauvel (really identical with and posterior in date to the former) 

 being erroneously given as a distinct species. Oxypoda nigrofusca, Waterhouse, 

 seems to me to require re-naming, on account of the prior insect of that name of 

 Kirby and Stephens, which, however, appears to be a synonym of 0. longuiscula. 

 For the former species I accordingly propose the name Waterhousei.^' Homalota 

 planifrons and platycephala, of Waterhouse are erroneously given as distinct species : 

 Mr. Waterhouse withdrew the latter name, originally proposed by him for his 

 insect, on account of platycephala, Thorns. The wind-bags, Homalota picea, Mot- 

 Bchulsky, and Euplectus Easterhrookianv^y Leach, are again inflated. Will no one 

 puncture them? Qyrophazna Poweri, Crotch, Stenus annulatus, Crotch, Lathrohium 

 Jansoni, Crotch, and Homalium crassicome, Matth., are omitted. Bryoporus Hardyi 

 is inserted under the genus MycetoporuSy though J5)T/oportts is recognized as a dis- 

 tinct genus. QuMius microps, Grav., Stett. Ent. Zeit., 1847, is accredited to 

 Britain. 



Raphirus (Quedius) nigricomis, Holme, Trans. Ent. Soc. iii, pt. 2, 1842, p. 127, 

 and Homalium mesomelas, Holme, 1. c, 1841, 128, are respectively given as good 

 species. Neither of them is accounted for in the synonymy of Wat. Cat., though 

 Philonthus eericeus, Holme, is therein recognized. Tho Quediv^ is stated by Holme 

 to be barely 2 lines long, and to be distinguished from all others of tho genus, 

 except fuscipes, by its black legs and antenna). Stephens' exponent of it appears 

 to be a very small block form of Q.fidgidxis. Tho Homxilium is by Holme himself 

 stated to be possibly a highly coloured variety of H. sordidnm, Kirby, Steph., — tho 

 typo of which insect appears to be Philorhinum Jtumile^ Er., and which is repre- 

 sented by H. iopterum in Steph. Coll. 



