56 
THE TASMANIAN NATURALIST 
There are seven specimens before me, all of which were taken in the 
vicinity of ‘glow-worms* (the larvse of a true cave-fly). When lights 
were thrown on them, they remained quite motionless. They were all 
taken at a considerable distance from the entrance, and where, except 
for chance visitors, the only lights they see are those belonging to the 
‘ glow-worms.’ 
Idacarabus Flavipes, n. sp. 
Blackish brown, elytrai margins and base of antennae paler, palpi 
and legs flavous, tibiae and tarsi (except claw joint) darker Head with 
a long seta close to each eye, and one on each side half-way between 
eye and base, two on clypeus, and several shorter ones on apex of labrum; 
prothorax with two on each side, a long one at apical third, and a shorter 
one at base ; under surface with sparse and rather long seta:. 
Head with two deep and strong impressions between eyes, posteriorly 
obscurely joined to constriction of neck , hind suture of clypeus feeble. 
Eyes fairly large and strongly convex. Antenna; somewhat shorter and 
stouter, but joints proportioned as in troglodytes. Prothorax about 
as long as wide, truncate-cordate, near apex considerably wider than at 
base ; with a narrow but distinct median line, continuous to base, but 
not to apex, near apex traversed by a feeble and slightly curved impres¬ 
sion ; in places very obscurely wrinkled ; margins narrowly raised. 
Elytra elliptic ovate; with distinct striee, more strongly impressed 
towards suture than elsewhere, in places with traces of punctures; third 
on each with three conspicuous setiferous punctures, one at basal fourth, 
one near middle, and the other at apical two-fifths; margins rather 
narrow and about each shoulder supplied with four distinct granules. 
Legs fairly long, fourth tarsal joint with a long thin fascicle at apex. 
Length, 4-i m. m. 
Hab .—Tasmania : Ida Bay Caves (John O. Dawson). 
I have referred this species to the same germs as troglodytes as it 
agrees in many curious features with that species, but having a single 
specimen only was not able to examine the parts of the mouth as well as 
in that species; the palpi are rather shorter and stouter, mentum more 
depressed, abdomen different, antennas somewhat shorter and stouter, 
eyes larger, more convex and with coarser facets, and legs shorter, but 
with longer claws. The abdomen across the middle appears to be com¬ 
posed of four segments only and at the sides of six. This is due to the 
suture between the second and third being obliterated across the middle; 
on each side the suture is fairly distinct, but in addition there is a 
strongly impressed line from the coxa to the side marking the true basal 
segment. 
The type was pointed out to me by Mr. Dawson some yards away 
from a cluster of ‘ glow-worms,’ and in the same part of the caves where 
troglodytes was taken. It appears to be a female, as the front tarsi are 
not inflated. 
