NEW ZEALAND COLEOPTERA. 301 
1368. Talevax tenuis, n. sp.—Black, shining, gradually narrowed 
posteriorly ; legs and basal joint of the antennz infuscate, tarsi 
testaceous ; clothed with short greyish hairs. 
Head densely and rugosely sculptured. Pvothovax transversal, 
its apex finely carinated, anterior angles depressed, posterior pro- 
minent and a little incurved at the extremity ; its surface is 
finely and distantly punctulated. Elytva elongate, gradually and 
slightly narrowed behind, apices obtuse ; each has a sutural stria 
most deeply impressed at the base and apex, and a broad, 
oblique basal depression, causing the shoulder to seem consider- 
ably elevated; the sculpture appears confused, the punctures 
being sometimes in rows, but never coarse. Antenne relatively 
stout, as long as the body, 2nd joint very short, 4th shorter than 
3rd ; they are almost filiform. 
Length, 134 ; breadth, 34 line. 
I found one, most likely a male, at Waitakerei. It is the 
smallest Eucnemid described as yet. 
1369. Protelatey mgvicans, (Sharp). Ent. Mon. Mag., Aug., 
1881, p. 50. 
Llongatus, angustulatus, sub-cylindvicus, niger, sparsim tenuitey pubescens, 
sat mitidus, prothovacis angulis posterioribus picescentibus, abdomine nigro- 
piceo, lateribus rufis. 
Long 11, lat 234—274 mm. 
This species is the largest Pvotelatey yet discovered, and may 
thus be easily identified, also by its black colour, comparatively 
shining surface, and scanty pubescence. The thorax is shining, 
rather sparingly and distinctly punctured, the elongate hind- 
angles are much directed outwards ; the elytva are rather deeply 
striate, the strie distinctly punctured ; the interstices are more 
finely and sparingly punctured, the 3rd, 5th, and 7th are, beyond 
the middle, more elevated than the others. 
The colour of this species is very probably variable; com- 
pared with the large variety of P. elongatus, I find that P. migricans, 
independent of the colour and sculpture, is distinguished by more 
elongate antenne, and by the hind angles being more abruptly 
directed outwards. 
Greymouth, Helms. 
NoTE—Dr. Sharp’s Chvrosis violacea (Ent. Mon. Mag., Aug., 
1881, p. 49) is identical with No. 1188 (Part I, p. 681); the 
colour of his specimen is probably brighter than mine. 
ELATERIDA. 
Psorochroa, n.gen.—Head small, obliquely narrowed and carinated 
towards the front, the middle obtuse, confounded with the cly- 
peus, the latter indistinguishable ; /Jabyum prominent, rounded, 
nearly on the same plane as the forehead, separated from it by a 
deep channel ; mandibles robust, bi-dentate at apex. Antenne half 
