466 . 
ELOPHORUS FENNICUS. 
Order Coleoptera. Fam. Helophoridoe Leach. 
Type of the Genus, Silpha aquatica Linn. 
Elophorus Fab., Lat., Gyl., Curt. — Helophorus Leach.— Hydrophi- 
lus.De Geer, Marsh. — Dermestes Geof. — Silpha Linn. 
Antenna remote, inserted before the eyes at the base of the 
mandibles, small capitate and 9-jointed, basal joint the longest, 
stout and clavate, 2nd elongate-ovate, 3 following slender 
and oblong, the 5th being a little dilated at the apex, the re- 
mainder forming a compressed pubescent club, 6th joint semi- 
ovate, 2 following large and cup-shaped, 9th suborbicular (6). 
Labrum transverse, the sides sloped, forming an angle towards 
the base, the anterior margin truncated and irregularly cili- 
ated (1). 
Mandibles alike, subtrigonate, rounded and hairy externally, 
pointed at the apex, slightly emarginate below, with a sharp 
notch beneath, the internal margin ciliated with stout bristles, 
submembranous towards the base (2). 
Maxillae oblong, terminated by an oval transverse lobe, very 
hairy externally with an internal lobe ciliated on the inside, 
with 3 or 4 spines at the apex. Palpi not longer than the 
antennse, rather stout naked and 4 -jointed, basal joint mi- 
nute, 2nd long subclavate, 3rd considerably shorter but stouter, 
4th the largest, elongate-ovate, or subfusiform (3). 
Mentum large, subquadrate, anterior angles oblique, slightly di- 
lated at the base. Mentum forming a very hairy lobe on each 
side. Palpi remote, not small, triarticulate, basal joint minute, 
2nd long and subclavate, 3rd the largest, very hairy, elongate- 
ovate (4). 
Head subtrigonate obtuse ; clypeus entire : eyes small sessile lateral 
and remote. Thorax transverse broader than the head. Scutellum 
concealed. Elytra broader than the thorax, elliptical. Wings am- 
ple. Legs compressed, anterior the shortest : thighs rather broad : 
tibiae, anterior the broadest, with 2 short spines at the apex and 2 
outside, and somewhat serrated (5) : tarsi as long as the tibia in the 4 
anterior feet, o -jointed, basal joint minute and concealed, 3 following 
short, the 2nd being a little the longest, especially in the hinder feet, 
5th as long as the others united in the 4 anterior : claws rather long 
and acute. 
FENNicusP«y&. — Curt. Guide, Gen. 106.6. — cinereus Marsh. 410. 26. 
In the Author s and other Cabinets. 
