BY THOMAS G. SLOANE. 207 



rounded, not divided from median part; supra-antennal plates 

 broad, widely depressed near clypeus; facial sulci deep, parallel 

 posteriorly. Prothorax lightly convex, of nearly equal length 

 and breadth (2 "55 x 2-6 mm.;; anterior angles rounded, bordered, 

 lateral basal impressions obsolete, or very faint Elytra long, 

 parallel (6 x 2 "8 mm.), lightly convex; dorsal surface rather 

 depressed; base truncate; marginal channel wide at humeral 

 angle; strij« deep and strongly punctate on disc, becoming faint 

 and finely punctate towards apex; interstices convex, except on 

 apical declivity. Prosternum with intercoxal part narrow 

 anteriorly, sulcate on base; episterna closely rugulose. Anterior 

 tibi» strongly 3-dentate, a sinuosity above upper large tooth 

 causing a fourth tooth to be weakly developed. ^ with anterior 

 tibifB hardly less strongly dentate than O; the inner apical spine 

 longer and more curved, but not obtuse at apex. 



Length 8-1 0*5, breadth 2 -4-2 -8 mm. 



I/ab. : N.S. Wales, Victoria, and South Australia (widely dis- 

 tributed); Lord Howe Island (Macleay Museum); New Zealand 

 (Broun). 



The description given above is founded on specimens sent to 

 me by Mr. Lea, and taken by him at Windsor, near Sydney; the 

 form found on the Murray and Murrumbidgee Rivers seems to 

 vary a little from the typical form, being a lighter and more 

 convex insect, but I cannot find any differences between them 

 that are worth considering of even varietal value. The original 

 description seems inexact in giving the shape of the prothorax as 

 " latitiid ine diinidio lungior" and the elytra, '^ frothorace hand 

 latiora." Sometimes the anterior part of the front is densely 

 punctate, and often the punctures that are always present on the 

 sides of the occiput, near the facial carinte, extend across the 

 occiput. Specimens of C. cuisiralasiw from Loixl Howe Island 

 are in the Macleay Museum; they are probably identical with the 

 species considered C. vngans by the late Mr. A. S. OUiff (Mem. 

 Aust. Mus. 1889). A specimen (5 ) sent to me many years ago, 

 from New Zealand by Capt. Thos Broun, under the name of 



