50 
present these characters—though the last mentioned two are only 
slightly marked, and in addition its head is of black colour and 
is very much more strongly punctured, its prothorax is black 
(scarcely tinged with green), and the interval between its eyes 
is quite evidently narrower. C. nigritarsis is either identical 
with one or other of Sir W. Macleay’s species or is an insect I 
have not seen ; for it cannot be either of the other two species 
before me on account of its seriate elytral punctures being de- 
scribed as “minute.” I do not think it can be the species I take 
to be picipes, Macl., inasmuch as its head is called ‘“ nearly 
impunctate,” but it may well be a colour var. of rufipes with the 
description (or rather with Mr. Master’s type) of which it agrees 
very wel! in all respects except in its elytra being “green.” I 
have seen several specimens of rufipes, and find the elytra to vary 
from blue towards a reddish purple tone, but have not seen any 
with elytra green. So nigritarsis remains an enigma to me. There 
are thus before me two species (having ocular sulci and legs not 
entirely dark) which are distinct from any species yet described 
possessing those characters, but unfortunately one of them is 
represented by a broken specimen unfitted to be treated as a 
type. I proceed to name and describe the other. 
C. jucundus, sp. nov. Ovalis (modice late) ; sat nitidus; viridis, 
capite nigro, prothorace nigro viridi-micanti, femoribus 
tibiisque testaceo-brunneis, tarsis piceis ; capite minus crebre 
(in clypeo crebre) subtiliter punctulato, parte mediana Jeevi ; 
oculis quam antennarum articuli basalis longitudine nullo 
modo minus inter se remotis; sulcis ocularibus bene 
definitis ; antennis quam corporis dimidium subbrevioribus 
sat robustis apicem versus vix incrassatis, articulo 3° quam 
1** 2° que conjuncti sat longiori quam 4™ 5™ que conjuncti 
sat breviori, articulis apicalibus quam precedentes parum 
brevioribus ; prothorace quam longiori ut 13 ad 1 (postice 
quam antice fere duplo) latiori, subtilissime vix perspicue 
punctulato, utrinque basin versus oblique subsulcato, antice 
vix emarginato, a basi antrorsum (superne viso) arcuatim 
angustato, basi media vix lobata, angulis (superne visis) 
obtusis ; elytris haud striatis, seriatim punctulatis, punct- 
uris sat magnis (fere ut C. levicollis, Blessig, sed basin 
versus magis subtilibus et apicem versus subobsoletis), inter- 
stitiis planis levibus; prosterno medio planato; corpore 
subtus fere levi; femoribus anticis antice subtilissime 
punctulatis ; tarsis subtus fulvo-vestitis, posticorum articulo 
basali quam ceteri conjuncti parum breviori. Long., 71. ; 
lat., 34 1. 
This species is easily distinguishable from the other described 
ones having ocular sulci and legs not uniformly of dark colour by 
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