FURTHER NOTES ON AUSTRALIAN COLEOPTERA, 
WITH DESCRIPTIONS OF NEW GENERA AND 
SPECIES. 
By the Rev. T. Biacksury, B.A. 
[Read October 6, 1896.] 
XX. 
PECTINICORNES. 
AULACOCYCLUS. 
A. errans, sp. nov. Minus latus; minus convexus; nitidus ; 
rufo-brunneus; vertice cornuto, cornu adunco supra sulcato 
in apice emarginato; prothorace sulco marginali excepto 
sublevi (ut A. edentuli, Macl.), utrinque pone medium fovea 
curvata impresso; elytris minus fortiter striatis, striis 
eequaliter valde distincte punctulatis, puncturis in striarum 
interiorum parte antica quam in striis exterioribus haud 
minus perspicuis, interstitiis nullo modo convexis. Long., 
11 ).5 ‘lat., 4 1. 
The species of Au/acocyclus are extremely closely allied inter se, 
and most of the characters that have been relied upon in the 
brief published descriptions seem to be in reality of little value. 
The form of the frontal horn is certainly liable to some variation 
and the number of external teeth on the front tibiz sometimes 
differs in the two tibiew of the same specimen. Nor is the form 
and sculpture of the lateral fovea of the prothorax constant; I 
have examples in which the two fovea of an individual specimen 
are by no means identical. The only constant characters I can 
find (apart from the size which does not seem to vary much) are 
in the striation and puncturation of the upper surface. The 
present species is very easily recognised by its prothorax almost 
without puncturation (as in A. edentulus, Macl., the commonest 
species of the genus in my experience) in combination with elytra 
comparatively feebly striate but having their strie extremely 
evenly punctulate (so that the punctures are scarcely less defined 
in the front part of the subsutural striz than in the lateral strie. 
Australia ; I do not know the exact habitat but believe it to 
be tropical. 
A. collaris, sp. nov. Minus latus; modice convexus; nitidus ; 
niger ; vertice cornuto, cornu adunco supra sulcato in apice 
emarginato ; prothorace subtiliter distincte sat crebre punc- 
