186 CHARACTERS OF SOME UNDESCRIBED 



Art. XIX. — Characters of some tmdescribed Genera and 



Species, indicated in the " Guide to an Arrangement of 



British Insects" By John Curtis, Esq. F. L. S. 



Order. — Coleoptera. 



Fam. — Corticarid^. Curt. 



Gen. 239.* — Holoparamecus. Curt. 



Oblong, depressed : head rounded, eyes small and lateral : thorax 

 obcordate, quadrate, broader than the head : scutellum con- 

 cealed : elytra elliptical : antennae capitate, nearly as long as the 

 thorax, inserted close before the eyes, 9-jointed, basal joint 

 sub-globose, 2d and 3d long, 4 following sub-globose, the 

 remainder forming a compressed club, the 8th joint semiovate, 

 9th somewhat ovate, the apex internally angulated : thighs incras- 

 sated: tibiae simple, compressed: tarsi triarticulate ? basal joints 

 short, terminal one long and clavate, claws minute. 



1. Depressus. Curt. 



Testaceous, shining, sparingly punctured : eyes black, granulated : 

 thorax with a transverse suture behind, the margins of the poste- 

 rior angles a little raised, with a deep abbreviated longitudinal 

 channel on each side at tlie base : elytra with a channel down each 

 side the suture (Length | a line.) 



This insect appears to connect Scydmeenus, and the group 

 I have called Corticaridse, which has hitherto been included in 

 the family of Engidse. I took a single specimen in Norfolk 

 many years since, and believe it is granivorous. 



Gen. 241. — Paramecosoma. Curt. 

 Elongate-ovate, sub-depressed : antennas longer than the thorax, 

 capitate pilose : 11-jointed, first 8 joints gradually diminishing in 

 length, the 1st and 2d robust, especially the former, the latter 

 ovate, the 9th, and following, forming a compressed club, 9th 

 joint obtrigonate, 10th subturbinate, 11th orbicular, the apex pro- 

 duced internally : head trigonate, eyes lateral : thorax slightly 

 transverse -quadrate, the sides a little convex : scutellum trans- 

 verse-ovate : elytra elliptical : thighs and tibiae simple : tarsi 

 5-jointed, 4th joint minute, 5th the longest : claws slender. 



1. Bicolor. Curt. 



Shining, ferruginous, clothed with short ochreous pubescence : head, 

 eyes, thorax, and scutellum black, strongly and thickly punctured, 

 * The numbers throughout refer to the " Guide." 



