348 
Mr. F. Bates's descriptions 
NYCTOZOILIDES. 
Nyctozoilus Deyrollei, n. sp. 
Tills is the species I have alhided to (Trans. Ent. Soc. 
1872, p. 271), in a comparison of its form with that of the 
genus Saragodhius — as the N. obesiis, Guerin. Haxang 
since that time forwarded the specimen to JVI. E. Deyrolle, 
he kindly compared it Avitli the type of ohesus, and, find- 
ing it distinct, has furnished me with the following com- 
parisons of the two species : — 
N. ohesus, Guc'rin (type). 
Head with a slight impression on 
the vertex. 
Prothorax narrower, the sides 
regularly rounded and hut little ex- 
panded in the middle ; front angles 
slight, the apex with hut a trace 
of a thickened margin (" houiTelet") 
at each side; the lateral gutter conti- 
nuous throughout its length. 
Elytra with the shoulders 
rounded, gradually widened at the 
sides to two-thirds their length. 
FlanJts of jiroiliordx slightly in- 
distinctly punctured in the middle. 
Body (or form) narrower, more 
oblong. 
Long. 9 lin.; width of prothorax 
across the middle 3f lin. 
N. Deyrollei, n. sp. 
Read coarsely, irregularly ru- 
gose. 
Prothorax broader, sides strongly 
expanded in the middle, strongly 
narrowed in front and behind; front 
angles very prominent, the apex 
thickly margined at each side nearly 
to the middle; the lateral gutter in- 
terrupted by a prominency in the 
middle. 
Elytra broader, more rounded at 
the sides, shoulders very strongly 
rounded, the greatest width towards 
the middle. 
Flanks of prothorax covered with 
coarse, prominent wrinkles. 
Body broader, more rounded. 
Long. 9^ lin.; width of prothorax 
across the middle 4 lin. 
Hah. — I cannot give any more definite locality than 
" Australia." A single example obtained from the col- 
lection of Major Parry. Judging from the kind of ticket 
attached to the specimen, I am strongly inclined to think 
it came from Western Australia, as similar tickets were 
attached to other insects that undoubtedly came from that 
quarter. 
Styrus, n. g. 
Near to Nijctozoilus. Head relatively narrower and 
longer, fi'ont angles of epistoma less rounded, so that the 
sides appear more parallel: eyes larger; antennae much 
longer, subfiliform, moderately perfoliate, very slightly 
depressed ; scape strongly obconic, joint 3 fully equalling 
in length 4 and 5 together, subcyhndric, 4 — 10 sub- 
cylindric, or very slightly obconic, 4 — 8 subequal, 9 — 10 
a little shorter, 11 longer than 10, rounded at apex, the 
last 4 joints finely densely pubescent : prothorax nearly as 
