PSELAPHID-iE. — TYCHUS. 91 



fSp. 8. nigriventris. Intense ferrugineo-rufus, abdomine nigro, thorace 



sphcerico, canaliculato, elytris unistriatis. (Long. corp. 1 J lin.) 

 Br. nigriventris. Denny, M. pi 7. f. 1. — Steph. Catal. 257. No. 2554. 



Bright ferruginous-red : head subquadrate^ with an angular depression in 

 front, terminating in two punctures, and an oblong fovea in the centre : 

 thorax thickly punctured, globular, with a deeply impressed longitudinal 

 dorsal line, and one on each side, terminating in punctures at the base : 

 elytra with four depressions at the base, and a single stria on each near the 

 suture : abdomen black, spherical : legs ferruginous : antennae the same, the 

 last joint acute; palpi testaceous; the terminal joint oblong and acute. 



Of this species I believe three examples only have been found ; 

 one taken near Barham, a second near Netley, and a third in the 

 New Forest ; so that it appears to be greatly distributed. 



fSp. 9. sulcicollis. Castanevs, punctulatus, suhpubescens, thorace obovato, dor so 



canaliculato, elyti'is postice ad angulum externum excisis. (Long. corp. 

 H lin.) 



Ps. sulcicollis. Reichenbach? — Cu?'tis, v'u. pi. 315. 



"Castaneous, shining, sparingly punctured and clothed with ochreous pubes- 

 cence : antennae as long as the thorax, very pilose : head subtrigonate, with 

 a fovea on each side of the crown, connected by a deep arched furrow : eyes 

 small and black : thorax obovate, truncated behind, a deep groove down the centre, 

 intersected towards the base by a curved channel, terminated on each side 

 by a deep fovea : elytra with the posterior angles notched and acuminated, an 

 incurved longitudinal line on each side the suture, and an abbreviated one 

 at the shoulder, forming a large and deep elongated fovea; legs slightly 

 obscure at the knees." — Curtis, I. c. 



I beheve a single example only of this species has hitherto been 

 captured in Britain ; it was " taken off the city walls of Carlisle." — 

 T. C. JUeysham, Esq. 



Genus CCCCLXXXI.— Tychus, Leach. 



Antenna; with the two first joints stout, subcylindric, the basal one longest and 

 stoutest, a little bent; the third to the eighth smaller, subglobose, the fifth 

 very large and conspicuous in the male, the ninth and tenth subquadrate, 

 transverse, tenth largest, the eleventh very large, ovate, acute. Palpi longer 

 than the head, the basal joint filiform, the second oblong and angulated, 

 the third very large, securiform : head subtriangular : thorax narrowed in 

 front : body slightly convex : elytra rather more than half the length of the 

 abdomen, the latter with the first segment the largest; legs slender; femora 

 slightly incrassatcd ; tibiw slender. 



