L. Harrison 
403 
group within the genus Degeeriella which characterises parrots and 
hawks. Piaget (1880, p. 300) has certainly included some of these 
parrot infesting forms in the genus Lipeurus ; but, in the case of L. cir- 
cumfasciatus, the tubercle on the third article of the d antenna, which is 
presumably his justification for the position in which he places the 
insect, is a sense organ, and not a clasping appendage. Pending a 
revision of the classification, I prefer to hold over any more precise 
statement as to the position of Psittaconirmus. The genus may be 
diagnosed as follows: 
IscHNOCERA of smallish size (less than 2 mm.) with elongate nirmoid 
form; head circumfasciate, without signate clypeus, broken in front 
by an oval emargination, across which the points of the frontal margin 
overlap; with definite weak trabeculae; third article of d antenna 
with an appendage; transverse bands of abdomen continuous in the d, 
interrupted in the ?; hind end of abdomen rounded in the d, bifid in 
the $. On Australian Loriidae. 
Psittaconirmus australis, n. sp. Figs. 7, 12-14. 
Head broad in front, sides of the forehead diverging slightly to the 
trabeculae, divergence continuing to a greatest width a little in front 
of the occiput; temporal angles broadly rounded; occiput with a shght 
convexity. In front is a small oval emargination, closed anteriorly by 
the acute overlapping tips of the frontal margin. Trabeculae weak, 
acute, as long as the first antennal article of the $. Antennae differing 
in the sexes; d with first article as long as the distal four together, 
narrower proximally; second article a third of first; third shorter, with 
an appendage; fourth shorter than fifth; $ filiform, first article shorter 
and broader than second; third and fourth shorter and sub-equal; 
fifth longer. Antennal bands, starting from an enlargement at the 
base of the airtenna, run outwards and then forwards round the margin 
of the head, gradually reducing in thickness to end in the overlapping 
acuminate points. Internal bands run forwards from the anterior 
mandibular articulation, turning inwards, then forwards again, to end 
in rounded enlargements on either side behind the emargination; the 
latter bound behind by a curved chitinous band. Temporal bands are 
continuous from eye round occiput; occipital bands hardly exist. The 
oesophageal sclerite is well marked. The eye is fairly prominent, with 
a hair and an elongated pigment spot. 
Prothorax short and much narrower than the head; narrower in front, 
with dark lateral borders and a median uncoloured space. Metathorax 
