230 
NEW SPECIES OF AUSTRALIAN COLEOPTERA, 
E U C N E M I D M. 
Lycaon Mastersi, Macl. (Hemiopsida, Macl.), Mast. Cat. Sp. No. 
3308. 
This species was described by Sir William Macleay as belong- 
ing to the Elaterid^e. It certainly belongs to the genus Lycaon, 
and is, I think, the species described by Bonvouloir as L. novus. 
DASCILLIDiE. 
Helodes scalaris, n.sp. 
Subdepressed, shining. Above piceous-black, undersurface 
piceous-red. Above densely clothed with short ashen pubescence, 
densest on the head; on the undersurface the pubescence is very 
short. Densely and minutely punctate all over. 
Head broad, flat, several shallow irregular impressions in the 
middle; eyes large, prominent, finely faceted; antennae flattened, 
reaching posterior coxae, 1st joint large, thick, 2nd very small, 3rd 
longest of all, 4th-10th gradually decreasing in length, 11th 
slightly longer than 10th. Prothorax about three times as broad 
as long, narrowly margined all round, widely emarginate in front, 
the middle scarcely lobed; base feebly bisinuate; anterior angles 
scarcely reaching the middle of the eyes. Scutellum triangular, 
flat, its sides straight. Elytra at base slightly broader than 
prothorax, scarcely widening to middle, and then as gradually 
decreasing to near apex, narrowly margined; four costae on each 
elytron— running from near base to near apex, the lateral one 
shortest and least distinct. Abdominal segments (except apical) 
with a shallow fovea on each side. Tibiae grooved outwardly, the 
sides minutely serrate. Length 11, width 7 mm. 
h'ab.— Galston, N.S.W. (Mr. D. Dumbrell). 
The above is the description of my largest specimen; I have 
two others which are much smaller, the smallest measuring 7 x 
4 mm.; it differs also in being more shining, paler beneath; in the 
antennae which are much longer (reaching apex of abdomen), and 
