45 
a note that it has traces of the sulci). Placed among the species 
not having ocular sulci, C. oblongus will take its place beside 
C. placidus, Blackb., from which it differs inter alia multa in 
having the seriate punctures of the elytra (as in confluens, 
Blackb.) almost lost among the interstitial punctures, and the 
elytra marked with longitudinal zones of various metallic colours. 
C. Iris, sp. nov. Oblongus, sat parallelus (forma fere ut 
C. longuli, Blackb. vel Leai, Blackb. sed magis depressa), 
sat nitidus; niger, elytris purpureo—et viridi—et aureo— 
versicoloribus, tarsis subtus fulvo-setosis ; capite zqualiter 
distincte sat crebre punctulato; oculis quam antennarum 
articuli basalis longitudine vix magis inter se remotis ; 
sulcis ocularibus nullis ; antennis ut C. longipennis, Hope ; 
prothorace quam longiori (et postice quam antice) ut 12 ad 
1 latiori, crebre distincte punctulato, antice modice vix 
sinuatim emarginato, a basi antrorsum (superne viso) ad 
medium leviter (antice arcuatim sat fortiter) angustato, basi 
media sublobata, angulis anticis fere rectis ; elytris crebre 
minus subtiliter punctulatis, haud striatis, inter puncturas 
confusas puncturis quam cetere paullo majoribus (fere ut 
C. confluentis, Blackb.) impressis ; prosterno medio sulcato ; 
metasterno sat distincte punctulato et oblique rugato, 
episternis minus nitidis obsolete punctulatis; abdomine 
antice distincte crebre (postice obsolete) punctulato et longi- 
tudinaliter rugato ; femoribus anticis subtilius punctulatis ; 
tarsorum posticorum articulo basali quam ceteri conjuncti 
paullo breviori. Long., 74 1. ; lat., 3% 1. 
A very distinct species. In my tabulation of the species of 
Chalcopterus (P. L.S., N.S.W., 1893, pp. 56, &c.), there would 
be a doubt whether it should be placed under E (on p. 62) 
having the prothorax normal or under EE (on p. 65) having the 
prothorax nearly parellel-sided in the hinder half. If placed 
under E it would stand beside velutinus, Macl. (on p. 63),—with 
which, however, it is not at all closely allied,—and might be 
thus distinguished from it : 
O. Seriate puncturation of elytra quite distinct ... velutinus, Macl. 
OO. Seriate puncturation of ie prey distinct 
from the interstitial ... Iris, Blackb. 
If placed under EE, C. ris weet aaa beside C. imper ialis, 
Blackb., as not having the elytral interstices ‘‘very finely” punc- 
tured (though they are punctured more finely than in imperialis), 
and would be distinguishable from zmperialis as follows :— 
I. Seriate puncturation of elytra very distinct ... wnperialis, Blackb. 
II. Seriate puncturation of elytra nae ae distinct 
from the interstitial Pe : ...  Lvis> Blackb. 
