44 REVISION OF THE AMTCTERIDES, vi.. 



ACAXTHOLOPHUS ALPICOLA Ferg. 



Ferguson, Trans. Roy. Soe. S. Aust., xxxix., 1915, p. 71. 



In the original aecount of this species slight differences were noted between 

 the Mt. Baldy and Mt. Kosciusko specimens. Recently (March, 1920) I have 

 taken specimens at I\It. Kosciusko which correspond with the ilt. Baldy form. 

 These were taken from 4000 to 5000 ft. above sea-level. Mr. Waterhouse, a 

 month previously, secured the typical form at the summit (7300 ft.), and I think 

 it is likely that the original specimens wer« secured there also. Should subse- 

 quent investigations pi'ove that the difference between the forms is constant 

 and is associated with a difference of habitat, it may be necessaiy to separate 

 the Victorian form subspecifieally. A third form also occurs in Victoria ; of 

 this, I have seen a male taken by Mr. J. E. Di.xon (Jan.. 1920) and a female" 

 in the collection of the National Museum; both are labelled Victorian Alps, 

 without precise locality. This form differs in its much smaller size, but I have 

 been unable to find any structural differences. It may be that these differences 

 in size are only individual variations, but the types ha\e a distinctive appearance 

 which marks them off from the other specimens, with the exception of tlie male 

 from tiie summit of Mt. Kosciusko. This is due, I believe, to the el\i:ra being 

 longer proportionally in the types, tlian in the other specimens. 



The following are the measurements of the specimens before me: — 



Mt. Kosciusko (Types) d'. 19 x 6.5; 2. 19 x 7.5 mm. 



Mt. Kosciusko (7000 ft.) .. .. c?. 20 x 7 



Mt. Kosciusko (4-5000 ft.) .... d'. 17 x 5.5; $. 19 x 7 



ilt. Baldy ?. 19 X 7 



?. 18 X 7 

 Victorian Alps c?. 15 x 5.5; J. 14.5 x 6. 



ACAXTHOLOPHUS TASJIANIEXSIS Lea. 



Lea, Mitt. a.d. Zool. Mus. Berlin, 1910, p. 182. 

 Tliis species is closely allied to A. alpicola Ferg. from the higher mountain 

 ranges of Victoria and New Soutli Wales, but is distinguished by the more dis- 

 tinct tubercles on both prothorax and elytra. Lea records that the crests may 

 occasionally be bidentate, though as a rule the fusion is complete. Xo other 

 species of the geniis has hitherto l)een recorded from Tasmania. 



ACAXTHOLOPHUS Dixoxi Ferg. 

 Ferguson, Proc. Roy. Soe. Victoria, xxvii.. 1915. ji. 25(1. 

 The position and relationship of tliis species are by no means clear. Pro- 

 visionally I have placed it with .1. alpicola and A. fa.vmaHiOK-/* in my table of 

 species, but its facies is quite unlike those species and more closely resembles that 

 of the adelaidae group. It is, however, more strongly tuberculate than adelaidae 

 or its allies, the supraorbital crests are single and somewhat differently set, and 

 the ventral segments, especially the ajjical, are different. 

 IJah. — Victoria: Portland. 



ACAXTHOLOPHUS SQUALIDUS Macl, 

 Maeleay, Trans. Ent. Soe. N.S. Wales, i., 18(i5, p. 285; .1. tnnicaticornh. Macl., 

 loc. cit., p. 286. 

 d'. Small; black; clothing rather sparse, brown, sprinkled with grey on pro- 

 thorax and elvtral tubercles. 



