368 Prof. Westwood on 
form two or three almost indistinct longitudinal striz, 
in consequence of their being more or less confluent; the 
anterior tibize have five teeth on their outer edge, of 
which the second is by far the strongest. 
Plate IX. fig. 6a, represents the head and prothorax of 
this female insect; and fig. 6b, the anterior tibia. 
There is no locality attached to the specimen, but I 
believe I received it from Tasmania. 
LISsSOTES SUBCRENATUS, n. sp. (2). 
(Plate IX. fig. 5a, b.) 
Piceo-niger nitidus punctatissimus, labro transverso, 
antice vix bisinuato, lateribus capitis ante oculos oblique 
truncatis, lateribus prothoracis subrotundatis, angulo 
postico laterali parum prominulo. 
Long. corp. lin. 44 (9 mill.). 
Hab.—Tasmania. In Mus. Parry. 
I am only acquainted with a single female of this in- 
sect, which differs so much from the females of the other 
known species of the genus, that I am reluctantly com- 
pelled to describe it as distinct, in the absence of its 
male. 
It is considerably smaller than the L. crenatus, female ; 
the head and pronotum are much more numerously 
and closely punctured, the disc of the head is flat, and 
gradually slanting; the sides, between the eyes and the 
outside of the base of the mandibles, are obliquely trun- 
cate and depressed, so as to leave a slight longitudinal 
carina on either side running backwards from the man- 
dibles ; the anterior canthus of the eyes is rounded off. 
The labrum is transverse, with the lateral angles rounded 
off, and the fore-margin very slightly bisinuate, the 
central portion formed by this bisinuation not more pro- 
minent than the side portions. The mandibles are small, 
curved, dilated inwards at the base, the apex of each 
forming a strong conical tooth, below which is a second 
smaller tooth, unequal both in size and position, in the 
two mandibles; the prothorax is transverse and convex, 
the anterior lateral angles slightly rounded; the disc 
with a slight central longitudinal channel; the sides are 
regularly curved and subserrate, the widest part being 
