Ocalea.] staphylinid^k. 45 



Knre; usually on the banks of rivers ; Tonbridge ; Manchester ; Hartlepool ; biinks 

 of Irtliinsr and Mersey ; Sciirboroii^h ; VVallinpton, Northumberlaud ; Scotland, rare, 

 Forth and Solway districts (banks of Nilh and Avon). 



O. badia, Ev. (prolLra, Gyll.). This species resembles 0. castanra, 

 l)ul is easily distinguished by its smaller size, and the less close and 

 coarser punctuation of the head, thorax, and elytra, which latter are 

 usually, but not always, of a lighter colour ; the thorax is almost as 

 broad as the elytra, which gives the insect a more parallel ajjpearance ; 

 the posterior tarsi, also, are rather longer in proportion to the tibiie. 

 L. 3i-3| mm. 



In moss, dead loaves, &c. ; very common in the London district ; not so common 

 but somovvhat widely distributed in the South and the Midlands ; rarer further 

 north; Hartlepool; Northumberlaud, rare; Scotland local, Lowlands, Forth and 

 Solway districts. 



ZX.VOSATES, Kraatz. 



This genus contains about eight European species, which are chiefly 

 confined to the central and southern portions of the Continent, one 

 species from Morocco, and another from Japan ; there are four British 

 species, three of which are found in moss, flood refuse, sandpits, &c., and 

 one occurs in company with ants ; from continental observations, however, 

 it is probable that most of the species of the genus are more or less 

 myrmecophilous ; with the exception of /. nigricoUis they are extremely 

 rare in our country. 



I. Head, thorax, and elytra thickly and strongly punctured, 

 dull ; fourth and fifth joints of antenna) not much 



shorter than the following ones I. NIGEICOILIS, Fayli. 



IL Thorax finely punctured more or less shining. 



i. Antennas plainly but gradually thickened; fourth and 

 fifth joints not ditiering much in length from the 



following ones I. PEOPINQUUS, Aule. 



ii. Antennae plainly thickened, but with joints 5-10 

 nearly equal in breudtii; fourth and fifth joints sbort 

 or very short. 



1. Thorax uarrower with sides almost straight in 



middle ; elytra a little longer than thorax ... I. foeticoenis, Lac. 



2. Thorax broader, somewhat orbicular; elytra at 



suture slightly shorter than thorax I. glabeitenteis, Bye. 



Z. nig-ricollis, Payk. Of a dull red colour with the thorax black, 

 and the head brownish or blackish ; the hind body is darker before a])ex, 

 which is testaceous ; upper surface of head, thorax, and elytra thickly 

 pubescent, thickly and rugostly punctuied ; head nearly as broad as 

 thorax, antennae red with the apex of the last joint usually lighter, 

 plainly and gradually thickened, second and third joints nearly equal, 

 4-10 transverse, but not strongly so (as the antennae are a little flattened 

 they appear more or less transverse according to the view taken of tliem), 

 last joint as long as the two preceding together ; thorax about as broud 



