of new Coleoptera from Australia. 201 
This species is very unlike all the others in the genus. 
The thorax is slightly angular at the sides, the elytra are 
long, and the setee which are on the surface are very dis- 
tinct, and bright yellow; each elytron has three distinct 
dark lines of a slightly purple-brown colour. 
Hab.—Sydney. B. M. 
Mechidius obscurus, rugosicollis and parvulus, de- 
scribed by MacLeay, and M. Mellyanus and Raddonanus 
of Westwood, are unknown to me, so that I cannot say to 
which section they belong. 
Lepidiota squamulata, sp. nov. 
Picea, convexa, creberrime albo-squamulata. Capite 
lato, convexo; clypeo transverso, antice rotundato, in 
medio reflexo-emarginato. horace longitudine fere 
duplo latiori, convexo, antice angustato, margine antico 
vix emarginato, basi late bisinuato, angulis posticis rectis. 
Scutello apice obtuso. Elytris basi thorace haud latioribus, 
postice rotundato-ampliatis, convexis. Tibiis anticis fortiter 
tridentatis. 
Long. 134 lin.; lat. 63 lin. 
Thorax closely covered with round shining scales. The 
elytra very thickly covered with white scales, but not 
crowded together as on the thorax. The margins of the 
pygidium are reflexed. 
Hab.—Swan River. B. M. 
In the Musuem Collection there is a second specimen, 
which has the white scales smaller than in the specimen 
described, and consequently they are less close together, 
LEPIDODERMA, gen. nov. 
Antenne with the 3rd and 4th joints elongate and 
equal; the 5th very transverse; the 6th to 10th forming 
a short club, the 6th joint not quite as long as the four 
following joints. No sternal process. Anterior tibi 
armed with three teeth. 
This genus belongs to the true Melolonthide of La- 
cordaire, but differs in the antennz from any genus with 
which I am acquainted. The species described below 
somewhat resembles T'richolepis niveopilosa, Blanch., and 
I think the genus is best placed immediately after 
Lepidiota. 
