400 



This and the two following species, in general appear- 

 ance and in structure, so closely resemble many of the pallid 

 species of Calomel a, differing (generically) only in the claws 

 being simple, and many of the metallic species are also so 

 closely allied in structure, differing also only in the claws, 

 that to maintain the two groups as distinct genera appears 

 almost absurd, more especially as there are forms whose claws 

 might fairly be regarded as intermediate. 



Chrysomela acaciae, n. sp. 



Flavous, apical half (or mere) of antennae black, tips of 

 tibiae and parts of tarsi sometimes infu seated. 



Head with dense and rather coarse punctures between 

 eyes, much smaller and sparser elsewhere, with a feeble 

 median line; clypeus with rather dense and small punctures, 

 suture deep. Antennae rather short and stout. Prothorax 

 more than twice as wide as long, basal two-thirds almost 

 parallel-sided ; sides with dense and coarse punctures, much 

 sparser and smaller (but still fairly large) elsewhere. Elytra 

 distinctly wider than prothorax, sides very gently rounded; 

 with rather coarse punctures in irregular geminate or sub- 

 geminate rows, becoming smaller posteriorly, interstices with 

 sparse and minute punctures. Inter-coxal process of pro- 

 sternum grooved along middle, base notched. Length, 

 5-6| mm. 



Hah. — South Australia: Nuriootpa, Rocky Gully (J. G. 

 O. Tepper), Murray Bridge (H. H. T). Griffith and A. M. 

 Lea). Type, I. 2596. 



Smaller than the preceding species and with coarser 

 punctures, on the elytra the lines of punctures are without 

 the beautiful regularity of those of that species. On all the 

 specimens in the Museum the apical half of the elytra is 

 distinctly paler than the basal half, but the two shades of 

 colour are not sharply defined ; living specimens, however, 

 are of a uniform delicate pale leek-green. Specimens are fairly 

 ■common on a dwarf species of Acacia. 



Chrysomela pubiceps, n. sp. 



Flavous; elytra (punctures excepted), sides of prothorax, 

 and abdomen paler than elsewhere : apical third (or more) of 

 antennae black or infuscated. Head with short but distinct 

 pubescence. 



Head with crowded but not very large punctures, with 

 a feeble median carina; clypeal suture distinct. Antennae 

 rather short and stout. Prothorax more than thrice as wide 

 as long, basal two-thirds almost parallel-sided, front angles 

 rather acutely produced : with dense and coarse punctures 



