26 STAPHYLINIDiE. \^OxiJpoda. 



2. Elytra equnl to or only slightly longer than tliorax ; length 2-3 mm. 



Section III. (Sub-Gen. Baeog-lena, Thorns., and Fodozya, 



Muls. et Rey.) 



III. Hind body more or less distinctly parallel-sided, body not fusiform ; elytra not 

 shorter than thorax ; length 2-3 mm. 



1. Anteunai very long, reaching apex of elytra, gradually and plainly thickened. 



Section IV. (Sub-Gen. Sisochara, Thorns.) 



2. Antennae rather long, longer than head and thorax, rather uniformly thickened 

 from third joint, which is considerably widened at apex. 



Section V. (Sub-Gen. Disochara, pars. X) 



3. Antennae as a rule rather short and plainly thickened towards apex ; elytra equal 

 to or a very little longer than thorax. 



Section VI. (Sub-Gen. Demosoma, Thorns.) 



IV. Eljtra distinctly shorter than thorax ; length lf-2^ mm. 



Section VII. (Sub-Gen. Bessopora, Thorns.) 



Section I. (Ozypoda, i. sp.) 



This section contains five species {0. spedahilis, lividij)ennis, vittafa, 

 longipes, and opwa), which may easily be distinguished from all the 

 others belonging to the genus by their larger size ; two of these species 

 appear to be usually found in company with Formica fuliginosa : of 

 these 0. vitiata is rather common, whereas 0. lonrjipes is represented as 

 British by a single specimen ; its habitat however, on the Continent, is 

 in ants' nests, and it may, and probably will, be found again in Britain ; 

 the other species occur in fungi, under dead leaves, in haystack 

 refuse, &c. 



O. spectabilis, Maerk. Moderately shining, finely and thickly 

 pubescent, pitchy black with the elytra and the apical margin of the 

 segments of the hind body above and below of a dull reddish or testaceous 

 colour ; head finely and thickly punctured, antennas rather long, 

 testaceous, sometimes a little fuscous towards apex, third joint hardly 

 longer than second, 4-10 longer than broad, gradually a little shorter 

 and thicker, eleventh as long as the two preceding ; thorax broader than 

 long with sides rounded and narrowed in front, as broad at base as base 

 of elytra, rather finely and thickly punctured ; elytra plainly longer than 

 thorax, strongly sinuate at apex near postero-external angles, very finely, 

 thickly, and somewhat rugosely j)unctured, sometimes entirely of a 

 reddish colour, sometimes darker round scutellum and near posterior 

 angles (this var. appears to be the real 0. spedahilis of Maerkcd ) ; hind 

 body narrowed and strongly setose behind, very finely and thickly 

 punctured or shagreened ; legs slender, testaceous, posterior tarsi elongate, 

 as long as the tibiie, with the first joint however shorter than the three 

 succeeding togethci'. L. 5-5 1 mm. 



