198 Notes on Australian Coleoptera. 
than behmd ; the anterior angles moderately prominent, the 
posterior ones rather obtuse ; the longitudinal sulcate very 
obliterated, hardly perceptible ; a light transverse impres- 
sions in front and another behind; two rather strong 
rounded impressions on the posterior part ; elytra a little 
broader than the thorax, oval, rather depressed, striated, 
with the intervals of the striz not elevated ; a light puncti- 
form impression behind, between the second and third striz ; 
a series of strong impressions on the posterior half of the 
margin ; lower side of the body of a dark brown, thighs 
black ; tibize strongly arched, with their extremity obscure ; 
tarsi, palpi, and first article of the antenne red ; the remain- 
ing articles of the latter obscure. 
Common near Melbourne. 
Note.—This insect is nearly allied to dvreus, Dej., but is 
easily distinguished by the form of the thorax, &e. 
Trigonotomide. 
The only Australian group that Mr. Lacordaire mentions 
as belonging to this family is Amblytelus, but this 1s evi- 
dently not in its right place, which seems to me to be near 
Dyscolus in an artificial system, or near Phylophiceus in a 
natural one; on the other hand, I have several species of 
Drimostoma. These insects have entirely the facies of the 
genus, but their mentum has a pointed tooth, equal in length 
to the wings, which are broad, rounded and pointed at the 
apex. 
brown ; head elongated ; thorax transverse, rounded laterally, 
rather broader behind than in front; having a deep longi- 
tudinal sulcate and two other deep impressions behind ; 
elytra large, convex, oval, much broader than the thorax, 
rounded at the humeral angles ; legs, antennze, and parts of 
the mouth of a dark reddish brown. 
Mountains of Victoria. 
Drvmostoma Montana: length 32° ; differs from precedent 
by its larger size, its more elonoated form; thorax not so 
narrowed in front ; elytra oblong, not sensibly broader than 
the widest part of. the thorax ; the strize of the elytra appear 
crenulated laterally when seen through a magnifying power ; 
the thorax is not marginated laterally ; legos, anteénnce, and 
parts of the mouth of a reddish brown. 
Mountains of Dandenong, Victoria, 
Drimostomea Thouzeti : length 22°; of a rather brilliant 
Drimostoma Australis: length 3°; of a brilliant dark 
