BY EUSTACE W. FERGUSON. 71 



?. As in J., but broader, aud elytra more produced, with rather smaller and 

 more numerous tubercles ;/ venter lightly convex ; anterior tibiae simple . Dimen- 

 sions: c?. 14 X 5.5 mm. ; ?. 15 X 6.5 mm. 



Hab. — N.S. Wales; Victoria. 



The above description is drawn from the types in the Macleay Museum and 

 which were taken at Kurrajong. 



I have before me specimens from various places in New South Wales and 

 Victoria, which I certainly regard as eonspecific with the types but which never- 

 theless show considerable variation from the types and also inter se. It is pos- 

 sible that some, at any rate, of these forms should be regarded as worthy of 

 subspeeiflc rank, but the series are hardly long enough to justify an opinion. In 

 this category comes A. serraticollis Macl., but there is more reason to justify 

 the separation of this form at any rate sul)speeifically . 



These variations may be considered in some detail. 

 Specimens (3 d) from the Blue Mountains, probably from Blackheath, agree 

 with the types. 



t?. 9. from Portland, N.S. Wales differ in the following details: Supraorbital 

 crests larger; antennae with second funicular joint hardly longer than first; pro- 

 thorax with anterior, median and intermediate lateral tubercles fused to form a 

 tridentate ridge, the posterior tubercle smaller, and the sides rather suddenly nar- 

 rowed behind it, so that the prothorax is somewhat cordate in shape; elytral 

 tubercles 8, 7, 7 in number, the humeral angle with a single nodule. 



cJ. ?. from Blackheath, Blue Mountains. Head with ridges more distinct, 

 and rostrum with median line carinate ; sujiraorbital crests smaller, and con- 

 tinued back in line with rostral margins, with hardly any angle at junction; 

 antennae with first and second joints of funicle subequal; prothorax much as in 

 the Portland specimens; elytral tubercles 9, 9, 5 — 6. 



A series of 8 specimens (d', ?) from Mt. Kosciusko approach closely to the 

 lypes; the supraorbital crests, however, show feeble evidence of bidentation; the 

 antennae have the second joint slightly longer than the first; the prothorax is 

 narrower, but with lateral tubercles as in the types; elytra with more evident 

 granules, the first row of tubercles degenerated into a row of mere granules, the 

 last 4 distinct as tuhercles; second row with 8 — 11; shouldei-s with two small 

 granules behind one another; third with 5 — fi, little more than granules. The 

 females are similar to the males but the crests are more distinctly bidentate and 

 the anterior angle of the external rostral ridge is more marked . 



3 d' from Sydney agree with type, except that the general sculpture is some- 

 what coarser, and the posterior lateral tubercles of the prothorax are larger. 



Specimens from Woodford (1 ?) and Mittagong (1 ?) agree with female 

 type, except they are somewhat larger. 



Specimens from Beechworth. Victoria (c7. S.) agree with types, except that 

 there is slight evidence of bidentation of the supraorbital crests. 



Var. 



Specimens (1 c?, 2 5) from Coonabarabran have a very distinctive appear- 

 ance and at first sight appear to be specifically distinct, but I am unable to find 

 characters to justify their separation except as a variety. c7. Larger; black, 

 with denser brown clothing, feebly variegate with g:rey. 



Head more deeply concave in front, with gi-ooves more marked, crests larger. 

 Rostrum rather deeply excavate above, with the lateral margins more raised. 



