362 Prof. Westwood on 
LissOTES FURCICORNIS, N. sp. 
(Plate IX. fig.-3.) 
Niger, punctatissimus ; elytris magis cicatricosis; pro- 
thorace maris transverso quadrato, lateribus rectis; capite 
latissimo ad angulos anticos tuberculo elevato matracter ; 
mandibulis maris magnis, furcatis, furcis equalibus, mterna 
sub-porrecta subconica, apicali conica erecta; prothoracis 
dorso leviter canaliculato ; elytris dimidiatim costatis. 
Long. corp. ¢ lin. 64-74; mand. lin. 1: 9? ln. 7. 
Hab.—In Alpibus Victorize Australasiz. D. Howitt, 
& @. In Mus. Oxonie. 
This species is well distinguished by the transversely 
quadrate prothorax, and furcate mandibles of the male, 
the two branches of the furcation being of nearly equal 
size. The head of the male is transverse, regularly sloped 
from the crown to the front; the sides rather square, the 
anterior angles truncate, with each end of the truncature 
rounded ; the lateral angle behind the eye is also rounded, 
in front of each eye is an elevated obtuse tubercle; the 
disc of the head is strongly punctured; the labrum is very 
shortly and slightly trilobed and setose; the mandibles 
of the male are about the length of the head, strong and 
much curved, they have a minute angular internal pro- 
jection at the base, and they are deeply cleft in the 
middle, into two large nearly equal sized obtuse teeth, of 
which the inner is horizontal, and exhibits traces of one 
or two notches below the apex; the outer or upper tooth 
is somewhat vertically elevated. ‘The mentum is trans- 
verse, with the anterior lateral angles rounded off; it is 
strongly punctured, with the anterior margin setose, and 
conceals the maxille and labium; the former have the 
terminal lobes moderately setose, the inner one being 
rather longer than the outer, and produced into a straight 
point in the male, but in the female (fig. 3e) it forms a 
strong acute hook. The labium is somewhat vase shaped, 
strongly setose in front, and the labial palpi have the basal 
joint slender and slightly curved, the second joint short, 
and the third somewhat clavate and curved. (In fioure 
3c, the labium and palpi are represented as detached 
from the inner surface of the mentum, in front of which 
they are placed separately, to show their relative size and 
form.) The prothorax in the male is much shorter than 
wide, being slightly wider than the head, with the lateral 
