SCOTT—COLEOPTERA ; HYDROPHILIDA, HISTERID At 217 
Antenne : these organs are 9-jointed in f and ¢, and I have been unable to detect 
any difference in form between those of ¢ and those of 9. Several balsam-preparations 
were made, and the sexes distinguished by the genital structures, as in the case of the 
preceding species. 
The series consists of 32 specimens. 
Loc. Seychelles. Silhouette: highest peak, about 2400 feet, IX. 1908. 
Crercyon, Leach. 
All the four species of this genus found in the Seychelles belong to the subgenus 
Cercyon s. str. The ventral surface of the mesosternal lamella is very narrow (in C. fructi- 
cola and C. laticollis linear, in C. uniformis very slightly broadened in the middle and 
tapering to a point before and behind) and the front of the metasternum is not cut out to 
receive the posterior end of this lamella. The front tibize are simple (not emarginate out- 
wardly before the apex): the sides of the prothorax are not scalloped before the base: the 
convexity of thorax and elytra forms a single curve (except when the specimens are 
unnaturally extended). 
19. Cercyon fructicola, sp. nov. 
Ovalis, depressus, angustus, lateribus subparallelis, nitidus, parcissime tenuissimeque 
pubescens ; supra omnino piceo-niger, palpis antennisque rufo-testaceis, harum clavis in- 
fuscatis, corpore subtus pedibusque omnino rufo-ferrugineis: capite pronotoque modice 
fortiter et crebre punctatis: elytris sat profunde punctato-striatis, intervallis ad basin fere 
planis, ad apicem parum convexis, sat tenuiter crebre punctatis. Long. corp. (incl. cap.) 
12—23 mm. , 
Form oval, depressed, rather narrow, with sides subparallel: in some specimens the 
thorax appears very slightly broader at the base than the elytra: from the base to about 
half the length the sides of the elytra are nearly parallel or very slightly curved, beyond 
that point they curve inwards to the not very blunt apex. Body above entirely pitchy- 
black, shining, only the pronotum and scutellum sometimes a trifle more dilute, and the 
front margin of the head and front and hind margins of the pronotum narrowly reddish ; 
antennze and palps reddish-testaceous, clubs of the antennze infuscate ; body beneath and 
legs entirely ferruginous. Very fine short hairs rise sparsely from some of the punctures 
on the head, pronotum, and from the intervallar punctures of the elytra. Head with 
front margin subtruncate, very slightly rounded ; moderately, strongly and fairly closely 
punctured, intraocular systematic punctures not very distinct. Pronotwm with punctua- 
tion about equal to that of the head, with sides gradually narrowing from the base 
forwards and slightly curved. Scutellum considerably longer than broad at base, smooth, 
with only a few punctures. Hlytra each with nine rather deep punctate striz, the 
punctures close together near the base, separated by twice their own diameter or more in 
the posterior part, strongest in the outermost strize: striz 1—5 reach to the base, 1 (the 
sutural) bending outwards on either side of the scutellum; 6 is abbreviated before the 
