210 
bus longe ciliatus; rufo-ferrugineus, antennis palpisque 
flavis ; capite grosse punctulato, clypeo antice truncato, 
lateribus rotundatis integris ; prothorace subquadrato, quam 
longiori quinta parte latiori, quam elytra latiori, equaliter 
subtiliter nec crebre punctulato, basi marginata; scutello 
modico punctulato (ut 4. Tasmanie ), elytris crenato-striatis 
interstitiis sparsissime punctulatis leviter convexis; pedibus 
minus elongatis, tibiis anticis valde arcuatis, extus tridentatis, 
dentibus inferioribus 2 permagnis, dente superiori parvo. 
Feminz prothorace multo minore, quam longiori dimidio 
latiori, quam elytra angustiori, sat fortiter punctulato; tibiis 
anticis fere rectis, dentibus inferioribus minoribus, superiori 
majori. Long., 4—531.; lat., 12—22 
At once distinguished from A. Tasmanie, Hope, by the lateral 
margin of the prothorax being evenly continued along the base. 
The prothorax of the male is very large and massive, being not 
very much smaller than the elytra. The head is evidently more 
coarsely punctulate than that of A. Tasmanie: it has a fairly- 
well marked tubercle in front of each eye, but no defined eleva- 
tion on the median part. 
S. Australia; Yorke’s Peninsula. 
MACHIDIUS. 
M. tibialis, sp. nov. Minus elongatus, subovalis; sat nitidus; rufus, 
capite elytris pedibusque obscurioribus ; ; capite antice fortiter 
triangulariter exciso, clypeo medio longitudinaliter carinato, 
lateribus sinuatis ; ; prothorace fortiter transverso, antice sat 
fortiter angustato, leviter sat crasse nec crebre punctulato, 
lateribus leviter sat equaliter arcuatis, angulis omnibus 
acutis (posticis retrorsum directis) ; elytris leviter striatis et 
obscure geminatim seriatim nec crebre granulatis; femoribus 
sat dilatatis; tiblis anticis extus dentibus 3 sat magnis sat 
eequalibus (inferioribus 2 approximatis, a tertio sat remotis) 
armatis ; tibiis posterioribus 4 robustis, in medio transversim 
carinatis, ad apicem extus iobato-productis, lobo truncato 
articulo tarsorum basali longitudine equali; unguiculis 
simplicibus ; elytris propys gidium haud tegeniitee pygidio 
longitudinaliter carinato. Long., 41.; lat., 2 1. 
The femora and tibize of this species estab those of some 
Liparetri (e.g., L. ordinatus, Macl.), but the apical prolongation 
of the external margin of the posterior four tibiz is more like 
that of some Dynastides (e.g., Cryptodus paradoxus, Macl.). The 
exposed propygidium is a character I have not seen in any normal 
Mechidius. The general facies is quite that of Mechidius, as 
also the structure of the head, sterna, &c. (so far as I can see 
without dissection) ; the antenne fall into prosternal cavities 
