984 T'ransactions.— Zoology. 
variable in their development. The two sexes may be readily distinguished 
by the form of the last ventral plate, which in the female is mueh more 
elongate than in the male, and is Shaped so that its middle part forms a 
sort of projection. 
Auckland and Tairua: sent by Mr. Lawson as well as by Captain 
Broun, but apparently rare. 
Obs. I. In certain specimens the elytra are marked by a dark transverse 
fascia across the middle, of which there is no trace in other specimens. 
Obs. II. This species is one whose position in the accepted classification 
of the group I should find it very difficult to define. In respect to the 
peculiar form of the hind angles of the thorax, and the position of the 
thoracic carina, it forms a decided point of connection with Etnalis spinicollis, 
from which, however, it is very distinct by reason of its emarginate eyes 
and more rostrate head. 
Obs. IIT. I have named this interesting species in honour of Captain F. 
W. Hutton, of Dunedin, to whom science is largely indebted for its recent 
progress in New Zealand. 
Anthribus crassus, n sp. 
A. capite haud rostrato, oculis subconvexis, brevis, transversim convexus, 
niger, nigro-tomentosus et minus distincte cinereo-maculatus ; elytris 
disco fascia abbreviata transversa, cinerea ; antennarum basi tarsis- 
que rufo-testaceis. Long. corp. 2 m.m. 
Carina of thorax quite basal; antenne inserted at inner margin of eyes, 
Head small, and much inserted in thorax, with a fine, dense, and indistinct 
punctuation. Eyes rather large, but not very prominent, their inner edge 
scarcely rounded and taking an oblique direction ; along this inner edge of 
yellowish ; they are slender, and about as long as the thorax ; the first joint 
second joint is about as stout as the first, and rather shorter than it; joints 
3-8 are very slender, each is distinctly shorter than its predecessor, the 
eighth being but short ; joints 9, 10, and 11 form a long, slender, and very 
laxly articulated club, each of them being quite narrow at the point of 
insertion. Thorax rather large, a good deal narrowed towards the front, 
the dise a little elevated, covered with a dense, fine, rugose sculpture, and 
only with excessively indistinct pubescence ; its carina is close to the elytra, 
and follows the direction of their base so ag to form the hind angle of the 
thorax, which is about a right angle; it is continued at the sides not quite 
