collected in Australia and Tasmania. 
221 
Metistete. 
Metistete, Pascoe,, Journ. Ent., ii.j p. 489 (1866). 
Metistete costatipennis , n. sp. 
Moderately elongate, convex, opaque, glabrous, pitchy-black, 
the tibiaf3 and tarsi brownish. Head densely, rugosely punctured, 
the epistoma limited behind by a fine shallow groove ; the eyes 
large, not prominent, feebly emarginate, separated by a space not 
equalling the width of one of the eyes as seen from above ; the 
mandibles feebly cleft at the apex ; the apical joint of the maxil- 
lary palpi broadly securiform ; the antennae extending to about the 
basal third of the elytra, stout, thickening a little outwardly, joint 
3 very elongate, nearly twice as long as 4, 4 and 5 subequal, 6-9 
slightly longer (10 and 11 broken off). Prothorax as long as 
broad, truncate at the base, flattened on the disc, slightly wider at 
the base than at the apex, the sides moderately rounded anteriorly, 
parallel behind ; the entire surface densely, rugosely punctured, 
without trace of basal fove^ or median channel. Elytra nearly 
twice the width, and almost four times the length of the prothorax, 
convex, parallel to the middle, and thence rapidly narrowed to the 
apex, the humeri rounded; with rows of coarse, deep, round punc- 
tures, which are separated one from another by transverse raised 
lines, the interstices strongly costate throughout and obsoletely 
granulate. Beneath coarsely punctured. Legs moderately stout. 
Body apterous. Length 8^, breadth 2f mm. ( $ ). 
Sah. W. Australia — Adelaide River. 
One mutilated specimen only^ apparently dead when 
found. This insect will probably prove to be generically 
distinct from Metistete, but it can be placed in it for the 
present. 
Otys^ n. gen. 
Apical joint of the maxillary palpi narrow, elongate-triangular, 
its outer side a little longer than the apical side, the latter about 
twice the length of the inner side ; mandibles bifid at the tip ; 
antennae rather short and slender, joints 3 and 4 elongate, equal, 
4-11 more or less obconic, 5-11 almost equal in length ; head 
short, sunk up to the eyes in the prothorax ; eyes very coarsely 
granulated, large, deeply emarginate (oblique as viewed from 
al)ove), rather narrowly separated ; prothorax strongly transverse, 
very feebly bisinuate at the base, and with small basal foveas ; 
