277 



are in facies intermediate between Aiifomohis and Caulohius 

 mlligfr, in view of which I regard it as possible that the two 

 may eventually have to be merged in one aggregate, the name 

 Aufomolus being dropped as a sjnonym of Caulohius. As, 

 however, it is easy to distinguish the A utomoli from G. v'lUUfer 

 and the species I have associated with it, by the elytra of the 

 former leaving the greater part of the propygidium exposed, 

 while those of the latter almost or quite cover the propy- 

 gidium, it is convenient to ^naintain both names provisionally. 

 The following tabulation will enable the student to distin- 

 guish the species I regard as Automoli and Crmlohii from the 

 rest of the genera that seem to me to form with them a natu- 

 ral group, and also from all other known Australian genera of 

 Sericoides. 



A. ClaAvs simple. 



B. Prosternal sntnres closed. 



C. Eyes small, not (or scarcely) pro- 

 minent, and very conspicuously 

 granulate. 

 D. Body winged. 

 E. Front tibi?e not as in EE. 

 F. Elytral not striped with 

 conspicuous wide pubescent 

 vittse. 

 G. Elytra not regularly 

 striate. 

 H. Clj^pens strongly mar- 

 gined in front- 

 HH. Clypeus not (or scar- 

 cely) margined in front 

 GG. Elytra regularly and 

 strongly striate ... 

 FF. Elytra striped with con- 

 spicuous wide pubescent 

 vittfe ... 

 EE. Front tibiae having exter- 

 nally a straight margin be- 

 tween two subapical and one 

 basal tooth. 

 F. Elytra leaving a large part 

 of the propygidium exposed 

 FF. Elytra almost or quite 

 covering the propygidium 

 DD. Body apterous ... 

 CC. Eyes not as in the above genera 

 BB. Prosternal sntnres open to receive 

 the antennae ... 

 A A. Claws not simple 



Liparetnjs 



Comophorus 



Microthopus 



Haplopsis 



Automolus 



Caulobius 

 Callabonica 

 Colpochila & its allies 



Msechidius 

 Heteronvx & its allies 



I refer, ^hen, to Automolus as distinguished from Caulo- 

 hius, all the known Australian Sericoides having the tibial 

 structure mentioned above, and having the greater part of 

 their propygidium not covered by the elytra. This distinction 



