THE AUSTRALIAN HONEY ANT. 499 
from the basal segments outwards. The antenna is also 
thickly clothed with short hairs, and especially towards 
the apex with leaf-shaped sense-hairs. The clypeus is 
rounded, with a slightly developed median lobe and a 
row of stiff hairs round the anterior border ; it is not 
carinated. 
The mandibles have six teeth, those on one side be- 
ing rather more developed and more pointed than those 
on the other. They decrease pretty regularly from the 
outside inwards. 
The maxille are formed on the usual type. The 
maxillary palpi are six-jointed, the third segment being 
but slightly longer than the second, fourth, or fifth ; 
while in Myrmecocystus the third and fourth are greatly 
elongated. The segments of the palpi have on the inner 
side a number of curious curved blunt hairs besides the 
usual shorter ones. 
The labial palpi are four-jointed. The eyes are ellip- 
tical and of moderate size. ‘The ocelli are not developed. 
The thorax is arched, broadest in front, without any 
marked incision between the meso- and meta-notum ; 
the mesonotum itself is, when seen from above, very 
broadly oval, almost circular, rather broader in front 
and somewhat flattened behind. The legs are of mod- 
erate length, the hinder ones somewhat the longest. 
The scale or knot is heart-shaped, flat behind, slightly 
arched in front, and with a few stiff, slightly diverging 
hairs at the upper angles. The length is about two- 
thirds of an inch. 
The following refers to a new species of mite which 
I have found in nests of Lasius flavus, and of which Mr. 
Michael has been good enough to draw up the following 
description. 
URoPODA FORMICARLA, Sp. Nov. 
This species, although it falls strictly within the ge- 
nus Uropoda, and not within Kramer’s genus Trachy- 
notus as defined by that, writer, still in most respects, 
except the very distinctions upon which the genus is 
