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a Novapus. Moreover I am of opinion that it is not even 
specifically valid but is simply a very large example, with sexual 
characters very strongly developed of my 2X. interioris. 
NV. bidentatus therefore must be regarded as a synonym of 
AX. interioris. 
NV. crassus, Shp. I have recently examined male specimens 
from W. Australia (forwarded by Mr. Lea) of what I have no 
doubt is this insect. It is certainly distinct from all the Novapi 
that I have described, being nearest to NV. Adelaide (from which 
it differs inter alia by its larger size, scutellum strongly and 
closely punctulate at least in the front of the middle part, and 
evidently larger and coarser elytral punctures). 
ASEMANTUS (gen. nov. Dynastidarum). 
Mentum ovale, antice minus angustum; maxille robust 6- 
dentatz ; mandibula magna superne conspicua ad apicem 
obtuse (extus nullo modo) dentata; clypeus a fronte vix 
distinctus antice angustatus ad apicem recurvus, frons media 
tuberculo crasso brevi armata; antenne 10-articulatze 
flabello modico ; prothorax antice sat late minus profunde 
excavatus, postice fovea magna (hac puncturis sat grossis 
impressa) instructus ; elytra sat convexa, puncturis seriatis 
geminatim impressa, interstitiis haud vel vix convexis ; 
pedes robusti, tibiis anticis extus tridentatis posterioribus 
2-carinatis, tarsorum posticorum articulo basali (presertim 
feminz) extus sat fortiter lobato, tarsorum anticorum maris 
unguiculis inzqualibus, tibiis posticis ad apicem lobatis 
ciliatis ; stridulationis organa nulla. 
This genus is very close to Semanopterus but differs from it 
by the short basal joint of its hind tarsi which is strongly dilated 
externally at the apex in a kind of lobe (especially in the female) 
and by the claws of the front tarsi in the male being unequal 
(one of them is thicker than the other and is abruptly turned 
back under the claw joint). The sexes present no distinguishing 
characters on the upper surface ; the apical ventral segment is 
(as in allied genera) widely and feebly emarginate in the male. 
The only species I can refer to the genus is one which I believe 
to be Semanopterus subequalis, Hope, but Hope’s description is 
so defective that it is impossible to be very confident of this 
identification ; the description calls the elytra “ fere zqualia” but 
further on refers to them as having “ elevated lines ;” I presume 
this means that there are some scarcely elevated spaces on the 
elytra, and if this is the correct interpretation I have little 
doubt the insect before me is S. subequalis. It cannot however 
stand in the same genus as S. Adelaide, Hope, which that learned 
author seems to have regarded as the type of his genus 
