728 STAPHYLINIDA. 
shorter thorax, and the elevations on the thorax and elytra not so conspicuous; 
there is no trace of an additional carina between the inner two elevations on the elytra ; 
the hind body has neither sculpture nor sete. 
8. Thoracophorus pallidus. 
Testaceo-ferrugineus, opacus ; antennis tenuibus ; prothorace elytrisque costatis, illo fortiter transverso. 
Long. 14 millim. 
Hab. Guatemata, Cerro Zunil (Champion). 
Differs from 7. pusil/us not only in its smaller size and pallid colour (this may be 
due to immaturity), but also by its more slender antenne, smaller eyes, and by the 
more distinct, though fine, costee on the thorax and elytra. The head is most minutely 
denticulate at the hind angles. The thorax has the surface uneven, and a fine carina 
halfway between the middle and each side. The elytra are considerably longer than 
the thorax, each bearing three fine cost, but there is no other sculpture. Hind body 
without sculpture. One example only. 
9. Thoracophorus filum. 
Angustior, fere depressus, rufescens, opacus; capite nigricante; prothorace elytrisque vix costatis, illo haud 
transverso, ineequali. 
Long. 14 millim. 
Hab. GuatemaLa, El Tumbador, El Reposo, Zapote (Champion). 
This species is very closely allied to 7. pusil/us, but is much narrower and more 
depressed and has an elongate thorax. The antenne are short, strongly thickened 
externally. The head is only a little constricted behind the eyes, the hind angles 
obtuse, the carine quite obsolete. The thorax isa little broader than long, without 
carine, but the surface is uneven and has a large depression on the middle. . The 
elytra are a good deal longer than the thorax, indistinctly tricostate. ‘The hind body 
is without sculpture. 
Group ELEUSININA. 
It will facilitate the classification of the “ Oxytelinee” if these insects be treated as a 
separate group, defined by the small, globose front cox, whose acetabula are widely 
open behind, while their external prolongation is closed by the trochantin, which latter 
has the appearance of a supernumerary piece of the sternun. 
ELEUSIS. 
Eleusis, Laporte, Etud. ent. p. 131 (1835) ; Fauvel, Ann. Mus. Genov. xii. p, 206; Notices ent. vii. 
p. 17. 
Isomalus, Erichson, Gen. et Spec. Staph. p. 838 (1840) ; Fauvel, Bull. Soc. Linn. Normand. ix, 
p- 35; Notices ent. ii. p. 31. 
This genus as at present limited is a widely distributed one, and possesses represen- 
