STUDIES IN AUSTRALIAN LEPIDOPTERA. 97 
Eam. THYRIDIDiE. 
Since I last treated of this family my material has considerably 
increased. I have now 32 species before me, and there are 4 
recorded which I have not seen. I shall therefore make a fresh 
attempt to reduce the Australian species to some preliminary 
order. The species are mostly very similar, and a great many have 
been described, often very imperfectly, from the Indo-Malayan 
region, so that it is probable that some of my new names may turn 
out to be synonymous ; even so I hope that the descriptions will 
prove useful. In identifying species particular attention should be 
given to the underside of the forewings. 
The disco-cellulars are very w r eakly developed in most genera. 
In particular the dorsal disco-cellular of the fore wing is frequently 
obsolete between veins 5 and 6, but I do not think this is a trust- 
worthy generic character; indeed it does not seem to be always 
constant in the species, for instance Striglina pyrrhata. 
Tabulation of Genera. 
a. Hindwing with 5 from near lower angle of cell. 
6. Disco-cellulars of forewing strongly oblique ; costal edge of 
cell much longer than dorsal ; antennae bipectinate in 
both sexes Oxycophina. 
66. Cell of forewing normal ; antennae in Q not pectinate. 
c. Frons rounded ; palpi porrect or obliquely ascending, 
second joint stout and densely scaled, terminal joint 
short ; posterior tibiae with long dense hairs ; thorax 
and abdomen stout. 
d. Forewing with vein 8 strongly curved and approxi- 
mated to 9; antennae of £ unipectinate ... Cansea. 
dd. Forewing with vein 8 not strongly curved ; antennae 
in £ not unipectinate. 
e. Forewing with 7 and 8 stalked Aglaopus. 
ee. Forewing with 9 and 10 stalked Troplioessa. 
eee. Forewing with all veins separate Striglina. 
cc. Fron<! flat ; palpi ascending, closely approximated to 
frons, second joint smooth, slender, terminal joint 
usuaMy long ; posterior tibiae smooth or short-haired ; 
thorax and abdomen slender. 
d. Forewings with 8 and 9 stalked Hypolamprus. 
dd. Forewingrs with 8 and 9 separate (rarely short- 
stalked). 
e. Abdomen elongate, in £ as long as forewing ... Obelura. 
ee. Abdomen moderate, in £ much shorter than 
forewing Hliodoneura. 
<aa. Hindwing with 5 from middle of disco-cellulars Addaea. 
G 
