22 IIETEROMERA. [Palorus> 



Under bnrk of onks nnil elms ; not common ; London; Birdbrook, Essex ; Hamp- 

 shire ; Swansea ; Scarborough ; Northumberland and Durham district ; it sometimes 

 occurs in flour, nnd Bold records it as taken in shops, and apparently introduced. 



HYPOPHLCEUS, Hellwig. (Corticeus, Filler.) 



This genus, including Paloms, contains about thirty species ; of these 

 about half occur in Europe, and the remainder have been described from 

 Northern Africa and the adjacent islands, North America, Ceylon, 

 Brazil, &c.; the species belonging to the genus Hypopldoeus proper may be 

 easily known by having the elytra truncate and the pygidium exposed ; 

 the general form is elongate-oblong or subcylindrical ; the antennae have 

 the last seven joints thickened, all but the last one being strongly 

 transverse ; the last joint of the palpi is subovate, and the scutellum is 

 transverse and truncate at apex. 



The larva of H. bicolor is described and figured by Schiodte (I.e. p. 559, pi. x. 

 fig. 8) ; it is rather broad, the length being only seven times greater than the breadth, 

 smooth and shining, with fine and slender setso ; it is gradually narrowed from a 

 little before apex, and the apical segment is small and not furnished with processes ; 

 the ocelli are two in number on each side, and are ratber large and conspicuous ; the 

 prothorax is a little broader than long, slightly narrowed in front, and very finely 

 constricted before middle ; the pairs of logs are of about equal length ; its habitat is 

 in dead trunks of oak, so that it differs very much in this respect from that of 

 Palorvs. 



I. Form elongate, subcylindrical ; thorax much longer than 

 broad; elytra moderately strongly punctured in distinct 



rows, unicolorous castaueous H. CASTANEOS, F. 



II. Form elongate-oblong, somewhat depressed; thorax 

 only slightly longer than broad ; elytra finely and more 

 or less confusedly punctured, black, with the base broadly 



red H. BICOLOR, 01. 



H. castaneus, F. (cimeterius, Herbst.). Elongate, subcylindrical, 

 shining, chestnut-brown, with the thorax often darker, almost black ; 

 head thickly punctured ; antennae pitchy or ferruginous with the apex 

 usually lighter ; thorax subrectangular, considerably longer than broad, 

 distinctly and rather closely punctured ; elytra with fine punctured 

 striae, interstices minutely punctured ; legs red. L. 4-5^ mm. 



Male with the anterior tibiae furnished with a large hooked spur ; 

 female with the anterior tibiae slightly produced into a tooth at apex 

 externally. 



Under bark of beech and elm ; very local and not common ; New Forest ; Ply- 

 mouth ; Sherwood Forest, where it has occurred in some numbers to Mr. Matthews, 

 Mr. Blatch, Dr. Power, and others ; Dunham Park, Manchester. 



H. bicolor, 01. A small but brightly coloured and conspicuous 

 species ; elongate-oblong, moderately convex, shining, of a testaceous red 

 colour above, with the elytra except basal third black ; under-side 

 castaneous red, with the apex pitchy black ; head subtriangular, finely 

 punctured ; thorax subquadrate, closely and finely punctured ; elytra 



