522 On Two new Genera of Coleoptera. 
subparallel, with a serrulate margin. The front margin has 
two dark lamelliform tubercles ; there are two smaller ones in 
the middle of the base; and the front half of the disk has two 
converging lines of small tubercles, with three dark ones on 
each side. he elytra are one and three quarters the length 
of the thorax and head taken together, clothed with fuscous 
scales, with a few sandy-coloured ones here and there on the 
coste and at the sides. The suture is raised and it projects 
slightly at the apex. Each elytron has three marked coste, 
the one arising from the shoulder not so distinct as the others. 
Prionide (aberrant). 
PATHOCERUS, gen. nov. 
Head rather small. Eyes slightly separated above, nearly 
touching each other below. Antenne the length of the 
elytra, the third to tenth joints emitting a long branch. 
Labial palpi with the basal joint very small, the second very 
long; the third a little shorter than the second, slightly 
enlarged towards the apex. ‘The maxillary palpi very long: 
the basal joint short; the second very long, at least as long as 
the two following joints taken together, rather slender; the 
third and fourth joints subequal; the apical joint widened 
moderately at the apex, which is arcuately rounded. Man- 
dibles very prominent, falcate, strongly angular about the 
middle on the outer side (the right mandible with a triangular 
expansion), the apices acute, the inner edge bidentate. The 
epistome acuminate. ‘l'horax rather small, rather flat, a little 
broader than long, broadest a little in front of the middle, 
obliquely narrowed in front, slightly narrowed posteriorly, 
the anterior part of the margin reflexed. Scutellum obtuse at 
the apex, almost truncate. Hlytra three times the length of 
the head and thorax taken together, at the base much broader 
than the thorax, narrowed towards the apex; each elytron 
with four slightly raised coste. Prosternal process rather 
narrow, grooved, curved down posteriorly. Metasternum 
rather large, the episterna broad at the base, acuminate poste- 
riorly. Legs long and slender. ‘T'arsi slender, the middle 
pair a little longer than the tibie, the posterior pair a little 
shorter than the tibiz; the first and second joints elongate, 
narrow, the second a little shorter than the first; the third 
shorter, elongate-triangular, emarginate at the apex; the 
fourth very small, but distinct. 
This genus is closely allied to Mysteria; it differs chiefly 
in having the antenne branching, and in the form of the 
palpi. 
