498 . 
TRITGMA BIPUSTULATUM. 
Order Coleoptera. Fam. Tritomidae. — Diaperiales Lat. 
Tritoma Fab., Lat., Curt . — Dermastes Mars. 
Antenna inserted in a cavity close to the inner margin of the 
eyes and the clypeus, not much longer than the head, capitate, 
1 1 -jointed, basal joint stout and ovate, 2nd suborbicular, 3rd 
the longest, slender, the 3 following short of equal length, sub- 
ovate, 7th rather stouter, subpyriform, 8th cup-shaped, the re- 
mainder forming a compressed pubescent club, 9th and 10th 
joints crescent-shaped, 11th smaller and of similar form, tuber- 
culated at the apex (6). 
Labrum attached under the clypeus, semiorbicular, emarginate 
in front and ciliated (1). 
Mandibles subquadrate, pointed, one bifid at the apex, with a 
notch on the inside covered by a thick ciliated membrane (2). 
Maxilla terminated by 2 hairy lobes, the internal one linear, 
the external articulated, narrow at the base and dilated towards 
the apex. Palpi large, 4-jointed, basal joint rather long, a little 
narrowed at the base, 2nd and 3rd much broader and cup-shaped, 
4th very large, compressed and semiorbicular, being truncated 
and appearing spoon-shaped when dry (3). 
Mentum subquadrate, the sides rounded, tricuspidate before. 
Lip narrower, suborbicular and slightly pilose. Palpi rather 
stout, but much shorter than the maxillary, triarticulate, basal 
joint the smallest, 2nd more robust and cup-shaped, 3rd ovate- 
truncate, with a long bristle outside (4). 
Head rather small and somewhat trigonate : eyes small and lateral . 
Thorax transverse, narrowed and concave before, slightly produced 
over the scutellum which is rather small and trigonate. Elytra much 
broader than the thorax and subovate, the disc slightly elevated. 
Wings ample. Legs, hinder pair scarcely larger than the other's : 
thighs short and rather stout : tibiae compressed and very much di- 
lated toivards the apex, with one or two spines on the internal angle, 
and serrated externally : tarsi 5 -jointed, 3 first joints rather dilated, 
and very pubescent beneath, basal joint a little longer than the 2nd 
which is subcordate, 3rd ovate, cup-shaped, 4th small, inserted in the 
cup of the 3rd; 5th long, slightly clavate : claws simple (5, a fore 
%)• 
Bipustulatum Fab. — Curt. Guide, Gen. 162. 1. — humeralis Mars. 
Black, shining, sparingly punctured ; palpi ferruginous, antennae 
more ochreous with the club rather dusky : elytra with 8 punc- 
tured striae on each, and a large red spot more or less lunated 
at the base, sometimes with a black spot on the shoulder : tarsi, 
and base and tips of tibiae ferruginous. 
In the Author s and other Cabinets. 
