BY THE REV. T. BLACKBURN. 
1435 
A. DIAPERIOIDES, Sp.llOV. 
Ovalis ; niger, supra obscure cyaneus, epistomate labroque antice 
palpisque plus minus piceo-rufis, tarsis dilutioribus ; capite crebre, 
protliorace sat sparsim, fortius punctulatis ; hoc basi quam elytro- 
rum basis vix angustiori, quam longitude quamve margo anticus 
dimidio latiori, lateribus leviter arcuatis, basi margineque antico 
bisinuatis ; elytris fortiter striatis, striis subtilius punctulatis, 
interstitiis leviter convexis sparsim subtiliter punctulatis ; seg- 
mentis ventralibus vix manifeste punctulatis, undatim longitudi- 
naliter strigosis ; antennis apicem versus manifeste incrassatis. 
[Long. 2|, lat. 1| lines. 
This is a true Amarygmus as distinguished from Chalcopterus ; 
it is very distinct from all the hitherto intelligibly described 
species, and does not seem to fit even any of Boisduval’s laconic 
diagnoses. It is perhaps nearest (but not very near) to A. 
maurulus, Pa sc. 
Northern Territory of S. Australia ; collected by Mr. J. P. 
Tepper. 
Chalcopterus (Amarygmus) amethystinus, Fab. 
This species belongs to the genus Chalcopterus. having 
mandibles truncate at the apex. It has been taken in the 
N. Territory of S. Australia by Mr. J. P. Tepper. The 
uniform bright blue colour (in some specimens with a violet 
tone in certain lights) of its upper surface and its red femora, 
together with its small pro thorax, and elytra punctured in 
conspicuous rows (consisting of uniform rather strong punctures 
not placed very close one to another), the intervals between 
which are hardly visibly punctulate, render it an easily recog- 
nisable insect. 
C. LONGiuscuLUS, sp.nov. 
Elongatus ; subparallelus ; niger, elytris cyaneis violaceo- 
micantibus, epistomate labroque antice late testaceis ; capite 
crebre (spatio inter oculos sparsius excepto), protliorace minus 
crebre, subtilius punctulatis ; hoc elytris multo angustiori, basi 
