118 
A DECADE OF AUSTRALIAN THYNNIDEOUB INSECl’S. 
is also the colour of the tibise and tarsi; the wings are slightly 
stained with yellowish brown. 
Inhabits King George’s Sound. In Mus. Westw. 
THYNNUS TUBERCULWENTRIS, fFesiw. 
(Plate 76, fig. 2.) 
griseo-pilosus clypeo flavo-vario, abdomine elongate nitido nigro, segmentis utrinquc 
fiilvo maculatis, scgtnento 2ndo subtus tuberculis duobus parvis conicis instructo. ^ 
Bong, corp. lin. 12. Expans. alar. lin. 20. 
The head is small and black, closely and finely punctured; the 
clypeus is slightly prominent, and convex; yellow, with a slender 
curved dark line on each side, and a dark central spot; the apex 
IS truncate, nearly concealing the ciliated labrum: the yellow 
margin of the clypeus is extended to the eyes, which have an 
abbreviated yellow margin to the lower part, both in front and 
behind; the head has also two minute yellow dots behind the eyes; 
the antennae are black, with two minute yellow frontal dots ; the 
mandibles are yellow, with the tips brown ; the maxillae and 
mentum are black, the former, as well as the maxillse, strongly 
fringed with pale hairs. In other respects, the trophi agree with 
T. Brownii. The thorax is entirely black, and clothed with gray 
pubescence ; it is of an oval form ; the abdomen is of an elongate 
oval form, broadest across the middle ; it is black and shining, each 
segment with a large fulvous lateral spot, which becomes confluent 
on the sixth segment, the terminal joint being entirely fulvous; 
the basal segment is conically elevated in front above, and beneath 
it is not carinated; the second segment is, however, armed 
beneath wdth two small conical tubercles; this and the following 
segments are dark yellow, with black margins ; the terminal 
segment is armed at the tip with a short acute black spine, the 
sides of w'hich, at the base, are slightly dilated. The legs are 
chesnut-coloured, with the coxae and base of the femora black ; and 
the wings are very slightly stained with yellowish brown. 
Inhabits King George’s Sound. In Mus. Westw. 
THYNNUS (AGRIOMYIA?) MELLEUS, JVestiv. 
(Plate 76, fig. 4.) 
variis, pronoto flavo, puncto parvo nigro, abdomine eloDgato 
lulvo, mgro-cingulato, pedibusfulvi8,alisflavis. ^ x' r 6 , e 
Long, corp.lin. 9^. Expans, alar, lin. 16. 
The head is rather small, black, and punctured ; the eyes are 
margined witli yellow, except on the crown of the head, the pale 
