BY THE REV. T. BLACKBURN. 
1407 
inclinatx) elevata ; prothorace baud impresso, margine basali in 
medio interrupto, margine anteriori late (in medio triangulariter) 
dilatato, prope angulos anticos fovea rotundata instructo ; tibiis 
anticis obtusissime bidentatis ; segmento ventrali apicali baud 
emarginato, sparsim punctulato, punctis breviter setiferis. 
[Long. 13^, lat. 7 lines (vix). 
The horn of the male is very stout and strongly recurved, 
equal in length (on its front face) to the distance from the base of 
the prothoracic excavation to the front of the prothorax. The pro- 
thorax is about a quarter again as wide as long and somewhat less 
than twice as wide at its base as in front ; its sides diverge very 
strongly for a short distance from the front and then are evenly 
and slightly arched to the base, the segment thus having a very 
quadrate appearance. On the elytra, the sutural stria reaches the 
apex ; then comes a space bearing some strong punctures, irregu- 
larly placed, in front ; then two punctured strife nearly reaching 
the apex followed by another two much abbre\dated ; the inter- 
stices among all four punctureless or nearly so ; between these 
strife and the margin the elytra are scarcely striated but are finely 
punctulate, the punctures tending to run in rows, especially near 
the margin. The sinuous fovea on either side behind the front 
margin of the prothorax appears to be a narrowed and deepened 
continuation of the strong furrow that runs close wdthin the 
lateral margin ; it tends gradually away from the front margin 
and ceases abruptly about half-way to the central line of the 
prothorax. The carina running along the centre of the retuse 
part of the prothorax is feeble in front but becomes stronger 
behind, its hind apex being raised almost like a third tubercle. 
The large smooth round tubercle on either side of the mentum is a 
striking character. The superior lobe of the maxillae has a strong 
tooth at the aj>ex, and 3 or 4 smaller ones below. 
The female which I have doubtfully connected with D. major^ 
resembles it in its massive, yet moderately elongate form, scarcely 
dilated behind, — and in the sculpture of its elytra, — but the pro- 
thorax is less quadrate, and the front tibiaj furnished externally 
with only two (and those almost shapeless) teeth are very puzzling. 
