,; 75 
i.abram is much elongated and sulcate in front as in the Stenoglossce. The elytra 
•<aeeply striated, without perceptible punctures and with convex interstices, they 
Novate in shape, widely margined in the middle of the sides, and there tinged 
h rufous : the colour above is dark brassy-blue or greenish ; the body beneath is 
iihy-black, and the legs and antenna? are clear reddish-testaceous. 
New Guinea ; collected by Mr. Wallace ; I have specimens also 
:etecl as from Batchian. 
IPTODERA SPiNiPENNis, n. sp. Magna, supra unicolor, cupreo-cenea ; 
I corpore subtus fevwridusqtce ceneo-piceis, antennis, orispartibus, tibiis 
\ tarsisqice rufo-testaceis ; capite thorace multo angustiori ; hoc trans- 
\ verso, quadrato, lateribus antice angulatim dilatatis, angulis posticis 
\ distinctis, basi recto ; elytris oblongo-elongatis, lateribus marginatis, 
9 oblique sinuato-truncatis, utroque angulo spinoso ; supra profunde 
f sub-punctato-striatis, inferstitio septimo basin versus sub-carinafo. 
i Long. 10-lli millim. Lat. tlytr. ^—!S\millim. 
This fine species is distinguished by the long spine into which each angle of the 
iucature of the elytra is prolonged in both sexes. The colour varies from piceous- 
l with a brassy-lustre, to brilliant coppery with brassy reflections, and sometimes 
p head and thorax are glittering brassy-green wldlst the elytra are cupreous. 
Upper and Lower Amazons. 
)PTODETiA CHALCITES, n. sjx Ohlonga, siqyra cuprea, capite thoraceque 
parvis, ceneis ; hoc transversim quadrato, lateribus rotundatis, angulis 
posticis distinctis, bad fere recto ; elytris oUongo-ovatis, profunde punc- 
tato-striatis, valde sinuato-truncatis, angidis Jmud produdis : corj)ore 
infra nigro-piceo, antennis, oris partibus pedibusque rufo-piceis. 
Long. 8 — 10 millim. Lat. elytr. 3|— 4 millim. S ? • 
Scarcely differs from G. spinipennis, except in the absence of spines from the 
Lgles of the truncature of the elytra ; in general appearance it much resembles the 
ppery species of Anclwynenus and Colpodes. The head is small, triangular, and 
irrower than the thorax, which again is much narrower than the elytra. The 
meral colour above is shining coppery, with the head and thorax generally of a 
■een aeneous tint. 
Common at Ega. 
OPTODERA RUTILA, n. sp. Latior,flavo-testacea, elytris (margine laterali 
excepto) Icete viridi-ceneis, tenuiter jmnctato-striatis. 
Long. 9 milli7n. Lat. elytr. 4^ millim. ^ ? . 
A very handsome species, distinguished by the smooth surface and brilliant 
reen hue of the elytra. The head is rather largo, but nofc quite so wide as the 
lorax ; the labrum is not much elongated but nearly square, notched in the middle 
f its front edge ; the antennse are robust, but the joints remain cylindrical. The 
