368 Mr. G. C. Champion on the Terebrionidex 
Hab. N. W. Australia—Baudin T., Troughton I., Port 
Darwin. 
Many specimens. Closely allied to D. ovalis, F. Bates, 
from New Caledonia, but more convex, duller, and more 
distinctly punctured, the elytra very finely punctate- 
striate. The elytra, at first sight, appear to merely have 
a series of very shallow, fine, longitudinal grooves, which 
become deeper towards the apex, the punctures in them 
being very little coarser than those of the interstices. 
The punctuation of the head is distinctly coarser than 
that of the prothorax and elytra. The Port Darwin 
specimens are less opaque and rather narrower than the 
others. 
Diphyrrhynchus apicalis, n. sp. (Plate VIIL., fig. 4, ¢.) 
Oblong-ovate, subparallel, convex, castaneous with a faint brassy 
lustre, opaque ; the upper surface very sparsely and exceedingly 
minutely punctate, the punctures on the head a little more distinct. 
Head short, deeply sunk into the prothorax, rather convex ; the 
epistoma very deeply emarginate for the reception of the labrum, 
separated from the sides of the front bya very shallow oblique 
groove ; eyes coarsely granulated, small, almost hidden beneath 
the anterior margin of the prothorax, the antennary orbits not 
extending half-way across them; antennz testaceous, very short, 
about reaching the middle of the prothorax, thickening outwardly, 
joints 7—10 transverse ; prothorax at the base barely twice as broad 
as long, the sides parallel behind, rounded and converging 
anteriorly, and sharply margined, the base very feebly trisinuate 
and witha shallow fovea on either side just within the margin, 
a narrow longitudinal space down the middle impunctate ; 
elytra at the base not wider than the prothorax, parallel to about 
the middle, the sides rounded and converging thence to the apex, 
the surface with regular rows of exceedingly minute punctures, 
which are scarcely distinguishable from those of the interstices and 
on the apical declivity are placed in rather deep striz, the inter- 
stices quite flat to about one-fourth from the apex, slightly convex 
beyond ; beneath, obscure reddish-testaceous, slightly pubescent, 
sparsely, moderately finely punctured ; legs reddish-testaceous ; 
the tibie very broadly widened, coarsely roughened and setose, 
the inner face of the anterior pair smoother; prosternum hori- 
zontal, widened and produced behind, lanciform, the mesoster- 
num slightly excavate in the middle for its reception. g¢. Anterior 
and intermediate tarsi with the second and third joints moderately 
dilated. Length 5 mm. ( 2.) 
