1890.] E. T. Atkinson— Ca«a%wtf 0/ the Family Pselaphidee. 187 



monstrosus, (Erineus) Walker, Ann. Mag. N. H., (3s.) ii, 1858, p. 206. 



Hab. Ceylon, 

 taphrooephalus, R. Gestro, Ann. Mus. Civ. Gen., xii, 1878, p. 144, fig. : Reitter* 

 Wien Ent., Zeit., vi, p. 303. 



grandis, Reitter, Z.c, p. 64 (jiec Casteln.). 



Hab, Borneo, Sarawak. 



Genus AGATHELOR. 



Schaufuss, Ann. Mus. Civ. Gen., (2s.) i, 1883, p. 420. 



brevitarse, Schaufuss, I.e., p. 394, 421. 

 Hab. Borneo. 



deplanatum, Schaufuss, /.c, p. 394, 421. 

 Hab. Borneo. 



Family PSELAPHIDiE. 



Catalogue of the Insecta of the Oriental Region^ No. 1 1. Order Coleoptera, 

 Family Psblaphid^. — By E. T. Atkinson, B. A. 

 Leconte describes the Pselaphidee as comprising a number of very small 

 insects, not exceeding one-eighth of an inch in length, of a chestnut-brown 

 colour, usually slightly pubescent : the head and thorax are most frequent- 

 ly narrower than the elytra and the abdomen, the latter Is convex, and 

 usually obtuse at the apex. Many are found flying at twilight, others in ants' 

 nests, or under stones or bark. The general form is that of the Scydmae- 

 nidoe from which the Pselaphidee are distinguished by the truncate, short 

 elytra that leave a part of the abdomen exposed, and the narrow, transverse 

 usually not contiguous, posterior coxae. Dr. L. W. Schaufuss^ distributed 

 the genera into six groups arranged according to the number of the anten- 

 nal joints: — Articerides, Adranides, Goniastides, Clavigerides, Cyathigerides 

 and Pselaphides. This arrangement was reviewed by Dr. E. fteitfcer," in 

 1882, who formed five sub-families, Ctenistini, Batrisini, Bryaxini, Psela- 

 phini and Euplectini, Leconte & Horn,^ give two sub-families, Clavigeriiice 

 and Pselaphince, the latter of which is again sub-divided into groups. 



List of principal worTis quoted. 



Aube, C. :— 



Monographic des Pselaphiens, Rev. Mag. Zool. 1834. 



* Note sur la famille des Pselaphiens,' in Ann. Soc. Ent. Fr., ii, 1833, p. 502. 



Kevison de la famille des Pselaphiens, in Ann. Soc. Ent. Fr., (2s.) ii, 1834, p. 73. 



1 Nunquam Otiosus, ii, 1872, p. 213. 



2 Ins. Deutschl., iii, 1882, p. 10 : Verh. Ver. Briinn, xx, 1882, p. 177. 

 « Class. Col., 1883, p. 85. 



