irA [-July. 



19. — Disema ino'mipes, n. sp. 



cJ . Modei'ately elongate, widened posteriorly, rather convex, feebly 

 slnninu- ; piceous, tlie antennae and elytra reddish brown, the opaque elytral 

 patch black, the femora tiavous ; clotlied with long, scattered bristly hairs. 

 Eyes extremely large, contiguous. Antennae long, moderately stout, feebly 

 serrate, joint 11 nearly equalling 8-10 united, asperate on its inner face. Pro- 

 thorax about as long as broad, a little wider tlian the head, strongly rounded 

 at the sides, constricted before the prominent basal margin ; impressed wiih 

 intermixed coarse and fine punctures, feebly canaliculate down the middle 

 anteriorly, and triangularly depressed at the base. Elytra moderately long, 

 rather broad, rapidly widening to the middle ; finely crenato-striate, the inter- 

 stices feebly convex, each with a series of scattered small piligerous impressions ; 

 the opaque lateral patch large, elongate, oblique, extending from the fourth 

 stria to the outer margin. Ventral segment 5 unimpressed, truncate at the 

 apex, leaving a portion of the genitalia exposed. Femora comparatively 

 smooth, the scattered punctures small, the intermediate pair curved, the 

 posterior pair straiglit, unarmed ; anterior tibiae slightly sinuate within ; 

 intermediate tibiae simple. 



Length 8, breadth 3 mm. 



Hah. : Beazil, Rio de Janeiro (Fri/). 



One male. Closely related to D. crassicorms Makl., 6 , but dif- 

 fering from it in having much less strongly serrate antennae, with the 

 apical joint not sulcate within, the more elongate, laterally extended 

 opaque patch on the elytra, the smoother, llavous femora, and the simple 

 legs. The colour is doubtless variable. 



{To be continued.) 



DESCRIPTION OF A NEW GENUS OP STAPHYLINIDAE. 

 BT MALCOLM CAMERON, M.B., E.N., F.E.S. 



Paractocharis, n. gen. 



Labrum transverse, entire, anterior angles rounded. Mandibles small, not 

 prominent, the right with a comparatively large tooth at the middle of the 

 inner margin, the left with a small one in the corresponding position. Inner 

 lobe of the maxilla narrow, elongate, pectinate internally ; the outer lobe 

 narrow and elongate, ciliate at the apex. Maxillary palpi 4-jointed, the first 

 joint rather short, the second club-shaped, the third much larger than the 

 second, ovate, the fourth small, subulate. Mentum transverse; labium trans- 

 A'erse ; tongue membranous, obovate, emarginate in the middle of the anterior 

 margin; paraglossae scarcely visrible ; labial palpi 2-jointed, moderately long, 

 the first joint longer than the second. All the coxae approximate; the femora 

 (especially the anterior) dilated. Tarsal formula 4, 4, 5; last joint of the 

 tai'sus much larger than the preceding, with an emargination at the end in 

 which the simple claws are somewhat concealed. Separable from Actocharis by 

 the dentate mandibles, the differently shaped tongue, and the enlarged terminal 

 joint of the tarsus. 



