Mr. A. M. Lea o% Genus of Stylopidae from Australia, 515 
Mesonotum very narrow in middle, the sides suddenly dilated. 
Scutellum transversely suboblong. Metanotum in about four equal 
parts, of which three are placed transversely, the two outer ones sub- 
triangular with the narrow part apical, the median part moderately 
narrow, but not. pointed in front, and evenly emarginate behind ; 
hind portion separated from the median one by a hollow membranous 
space, the front angles acute and hind margin rounded. Abdomen 
apparently composed of six segments. Elytra about once and one- 
fourth as long as metanotum is wide. Wings large. Legs long 
and thin ; tarsi five-jointed, with two thin, equal claws. 
The tarsi are distinctly five-jointed, and with two claws, characters 
which, according to Pierce’s table (page 70 of his monograph), would 
place it in the Mengeuidea ; to which accordingly I refer it. Only 
two genera (one fossil) are placed in the sub-family by Pierce, and 
both have the antennae seven-jointed. In the Halictophagidue the 
antennae at first appear to be similar, but they have one joint more 
to the flabellum, and their tarsi are three-jointed only and without 
claws. 
The buccal cavity is irregularly rounded, and on one specimen 
appears to have five processes, one on the upper part, round and 
hollow ; and four in pairs, of which the upper ones are triangular in 
shape, wide at the base, and pointed at the tip, and not quite touching 
each other ; the lower ones are narrower and less triangular, with the 
apices more obtuse and also not meeting. On another specimen two 
long processes cross each other over the mouth, and two somewhat 
shorter ones can be seen. These probably are broken off on the first- 
mentioned specimen, allowing parts of the mouth to be more clearly 
visible. 
The abdomen is so badly twisted on all the specimens that it is 
impossible to state what it is like on fresh ones. 
Austrostylops GRACILIPES, n. sp. 
. Of a pale but somewhat dingy flavous; antennae, elytra and 
wings lightly infuscated. Extremely finely pubescent. 
Head notched in front and ridged close to each eye. Antennae 
with first joint of moderate size, second short, third to fifth short, 
but each with a long ramus, sixth elongate, not much shorter than 
rami. Elytra rather narrow at base, with a thin strip membranous, 
apical half wider. Wings with about seven (including the outer 
one) long veins, and two short ones. Legs long and thin; front 
coxae femora and tibiae of about equal lengths, but the coxae slightly 
stouter than femora, and these than tibiae ; trochanters about one- 
third the length of femora, to which they are closely applied ; 
