llyobates.'] staphtlinid;e. 47 



punctured ; hind Lody parallel-sided, almost smooth except that the 

 transverse impressions on the front segments of hind body are strongly 

 and rugosely punctured ; legs reddish testaceous, posterior tarsi with the 

 first joint equal to the three following united. L. 3^^ mm. 



]\Iale with the ventral plate of seventh segment of hind body slightly 

 prolonged in an obtuse or rounded angle. 



In moss, sandpits, flood refuse, &c. ; very rare; Snodland (Kent), Caterham, 

 Sliirley, Walton-on-Tlinnies, Riddlesdown, West Wickham, Miirgnte, L'eigate; 

 recorded as very rare in Pohiporus versicolor at Fordlaiids, Kxeter, in Partitt's 

 Devonsliire catalogue, but this may j)eilia])s be in error: this species does not 

 appear to be ever associated with ants in France, although it is common and widely 

 distributed. 



Z. g-labriventris, Rye {Bonnairei, Fauv.). Shining, entirely 

 ferruginous-testaceous, with the head and more or less of hind body some- 

 times darker ; head almost smooth, antennas rather short, thickened, 

 with joints 4-10 strongly transverse, 4-5 very short; thorax somewhat 

 orbicular with sides plainly rounded, extremely finely and closely 

 punctured ; elytra at suture shorter than thorax, sometimes darker 

 about scutellum, very finely punctured ; hind body parallel-siiled, dark 

 red, or pitchy brown, with the apex of the segments light, front segments 

 closely punctured at base, hinder segments finely and diffusely punctured, 

 sixth segment smooth ; legs reddish testaceous. L. 3 mm. 



This species was found by Dr. Power in May and June 1863 in the 

 runs of Formica fidiginosa, and has not since been captured ; it did not 

 occur in the nest of the ants. 



Mr. Eye introduced the species as Oxypoda glahriventris, and compares 

 it with 0. lurens ; he also says that " in general appearance it somewhat 

 resemljles Isrhnoglossa cortkalis, but with the antennae of llyobates 

 forticornis : " it is identical with the /. Bonnairei of M. Fauvel, and 

 there seems some doubt as to which name is entitled to priority. 



CAIiODERA, Mannerheim. 



This genus comprises about forty species, about half of wdiich occur in 

 Europe ; several, how'ever, have been described from South America, 

 especially from Chili, and from Australia ; and it is most probable tliat 

 many others will be found ; there are five British species, two of which, 

 C. ruhens and C. umhrosa, differ very considerably from the rest and 

 from each other : these have been placed by Thomson in different 

 genera, Ityocara and Amarochara respectively. 



I. Elytra much broader than thorax. 

 i. Length 3^ mm. ; third joint of antennae twice as long as 

 fourth. 



1. Length 3|-4 mm.; upper surface deep black, some-' 



what dull C. NIGEITA, Mann. 



2. Length 3 mm. ; upper surface black, very shining . . C. BIPauia, Er. 



