246 Mr. G. C. Champion on the Heteromerous Coleoptera 
feebly margined. Elytra moderately long, nearly twice as wide as 
the prothorax, densely, finely punctate ; each elytron with two 
faint costse on the disc and another near the margin. Beneath 
rather sparsely punctured. 
^ . Fifth ventral segment subtruncate at the apex ; the modified 
sixth segment divided into two broad, strongly curved, spoon- 
shaped processes. 
Length i^-U, breadth l|-lf mm. ( ^ ? ). 
Hab. Tasmania — Hobart. 
Apparently a common insect in Tasmania. It varies 
greatly in size, some of the males being very small. 
Smaller than A. atkinsoni, the antennge less elongate and 
with the apical joint not constricted at the middle. 
DOHRNIA. 
Dohrnia, Newman_, Zoologist, 1851, App., p. cxxxiii. 
Ithaca, Olliff, Proc. Linn. Soc. N. S. W. (2) ii., p. 152 
(1888). ($.) 
The type of this genus, D. miranday Newm. (= Ithaca 
anthina, Olliff), from Tasmania, has the antennas very 
peculiarly formed in the male sex (joints 5-7 being 
distorted and dilated), these organs being of normal form 
in the female. In the species now added the antennae 
are simple in both sexes. The head is more produced in 
front, and the eyes are more oblong than in Asclera ; 
the eyes are more finely granulated than in Gopidita and 
Oxacis. 
Dohrnia simplex, n. sp. 
Moderately elongate, the head and prothorax shining, the elytra 
opaque ; the head atro-caeruleous, the prothorax rufo-testaceous, the 
elytra bluish-black ; the palpi, antennas, and legs black, the antennae 
with the three basal joints testaceous beneath in the male, the 
knees rufo-testaceous ; the under surface, the prothorax excepted, 
cseruleous ; above and beneath clothed with fine cinereous pubes- 
cence. Head finely and closely, in one specimen sparsely, punctate; 
the eyes oval, finely granulated ; the mandibles bifid at the tip ; the 
apical joint of the maxillary palpi elongate-triangular ; the antennae 
filiform, about reaching the middle of the elytra, the joints from 
the fifth gradually decreasing in length, 10 and 11 equal, 11 not 
constricted at the middle. Prothorax cordate, as long as broad, 
transversely depressed in front and also depressed in the middle 
behind, the base with a reflexed margin which projects laterally, 
