collected in Australia and Tasmania. 353 
certain Colydiide, i.c., of Corticus and Sarrotriwm. 
They are found under bark of felled Hucalyptus trees. 
Elascus crassicornis. 
Elascus crassicornis, Pascoe, Journ. Ent., i., p. 120, 
be 7 okt onde 
Hab. 'Tasmania—New Norfolk. 
Elascus lunatus. 
Hlascus lunatus, Pascoe, loc. cit., t. 7, fig. 8. 
Hab. Tasmania—lLaunceston and Hobart. 
Three specimens, agreeing with the type in the Pascoe 
Collection. 
EDYLIus, n. gen. 
Mentum strongly transverse, trapezoidal, carinate down the 
middle; mandibles bifid at the tip; last joint of the maxillary 
palpi oblong-ovate, that of the labial pair similarly shaped ; 
maxilla with the inner and outer lobes coarsely ciliated ; labrum 
moderately prominent, emarginate in front ; head large and broad, 
deeply sunk into the prothorax, arcuate-emarginate in front, the 
antennary orbits rather broadly expanded, parallel behind, and 
extending outwardly nearly as far as the eyes, the latter small, 
strongly transverse, and almost entire, the epistoma not clearly 
defined ; antenne not reaching the base of the prothorax, joint 3 
twice as long as 2, shorter than 4, 4 and 5 equal, 6 a little shorter 
and broader, 7—11 widened, 7 as broad as long, 8—10 strongly 
transverse ; prothorax large, transverse, convex, broadly, horizon- 
tally explanate at the sides, with very prominent angles, the 
anterior ones subangularly produced in front, and nearly meeting the 
antennary orbits, the base feebly bisinuate ; scutellum transversely 
triangular, moderately large ; elytra about twice as long, and of 
about the same width, as the prothorax, connate, broad oval, rounded 
at the sides in front, acutely margined, the humeri obtuse, declivous, 
not meeting the hind angles of the prothorax ; prosternum convex, 
rather broad, declivous behind, margined on either side between 
the coxz; middle coxai cavities widely open externally, the 
trochantin large; hind coxe widely separated, the intercoxal 
process broadly rounded at the apex ; epipleurz entire, broad at 
the base, gradually narrowing to the apex ; third and fourth ventral 
segments with coriaceous hind margin ; legs elongate ; anterior 
tibize flattened and dilated, strongly produced at their outer apical 
