100 Notes on Australian Coleoptera. 
Odacanthidee. 
Of this tribe I only know a new genus, and representatives in 
Australia of Casnonia and Ophionea. Mr. Macleay, jun., has 
described, in the “ Transactions of the Entomological Society 
of Sydney,” two insects as Odacantha, but one is a Casnoma 
and the other is not perhaps even a Truncatipenm, but in 
all cases does not belong to this tribe, perhaps to the 
following | 
CASNONIA. 
Casnoma Obscura: length 34’; black; thorax covered 
with a dense puncturation, and bordered or the sides; elytra 
glossy with puncturated lines which do not extend over their 
posterior portion ; parts of the mouth and four first articles of 
the antenne of a pitch brown; legs yellow with the knees 
brown; the tarsi spotted with the last colour. 
Rockhampton ; sent to me by Mr. Thouzet. 
Casnonia Micans. 
Odacantha Micans: Macleay, jun., “ Trans. of the Ent. 
Soc. of Sydney.” 
From Port Denison. 
Casnoma? Clarensw : length 54’; of a glossy black; head 
long, oval ; thorax long, with a shght longitudinal line in the 
middle; its disc covered with little transversal striz and its 
sides strongly punctured; elytra with punctured strie, which 
do not extend further than the middle, with a large yellow 
oval spot on the extremity; legs yellow, with the knees and 
tarsi brown; extremity of the palpi yellow. 
I received this pretty insect from Mr. Wilcox, who found 
it near the Clarence River. It is of large size for the genus, 
and its elongated form gives it the appearance of the genus 
Apiodera. Having only one specimen I could not dissect 
the buccal parts. 
OPHIONGA. 
This is entirely an Indian form; it differs only from 
Casnonia by the fourth article of its tarsi, which is bifid. 
Ophionwa Thouzett: length 32’; black; thorax red; 
elytra feebly striated of a dark blue, with a transverse 
yellow band on their anterior third part, and another on 
their extremity; there is also a short white longitudinal 
spot on the posterior part that joins the latter band, below 
black, with the thorax red ; legs brown, with the thighs of a 
