139 



This extremely distinct species was taken by Mrs. French, of 

 Melbourne. As will be seen by the above description, it is so 

 distinct from C. WesfAvoocli, Baly, that it can hardly be necessary 

 to specify the difference. The prothorax is of very peculiar form, 

 an ill-detined ridge commencing near the base on either side, very 

 wide of the middle line, and running obliquely forward for a 

 certain distance, until its direction (near the front) becomes 

 parallel to the middle line, and at the same place the ill-defined 

 ridge changes into a very stiongly elevated crest. The base of 

 the elytra is nearly twice as wide as the widest part of the pro- 

 thorax. The absence of lateral teeth from the prothorax is 

 noteworthy, as M. Lacordaire regards their presence as a generic 

 character. There is, however, no doubt al)0ut this insect being- 

 congeneric with C. Westivoodi. 



Victoria ; Latrobe R. District. 



MICRODOXACIA (gen. nov. Domic idorum). 

 Gen. Donacia affinis ; diflert capite antice minus productum, 

 femoribus minus elongatis sat incrassatis, unguiculis parvis 

 appendiculatis divaricatis. 

 The minute insect for which I propose this new generic name 

 is certainly, I think, very close to Donacio. I have not been 

 able to devote a specimen to dissection, and so am not able to 

 state positively that the parts of the mouth requiring dissection 

 for their examination {e.g., the ligula and mentum) are exactly 

 as in Donacia, but with this reservation, the characters of 

 Donacia given by Dr. Chapuis (Gen. Col., X., p. 57), with the 

 exceptions noted above, are the characters of the present species. 

 It may be at once distinguished among the Phytoj)haga by the 

 following characters in combination : — Long slender antennee 

 inserted w^ell in front of the eyes and notably nearer to the 

 centre line of the head than is the inner margin of the eyes, base 

 of prothorax much narrower than base of elytra, prothorax not 

 distinctly margined laterally, anterior coxae almost contiguous, 

 claws appendiculate. 



M. incerta, sp. nov. Colore variabilis, testacea \el brunnea plus 

 minus feneo-vel viridi-micans ; minus nitida ; sat elongata ; 

 capite prothoraceque fortiter crebre sat rugulose punctulatis ; 

 illo sat brevi sat jequaliter leviter convexo ; oculis modice 

 convexis, quam antennarum articulorum 3' 4' que conjunc- 

 torum longitudine fere magis inter se remotis ; antennis 

 quam corporis dimidinm (maris multo, feminte vix) longiori- 

 bus, articulo basali sat incrassato, 2° 3° que brevioribus inter 

 se sequalibus, 4" quam basalis longiori, ceteris inter se et 

 basali longitudine subtequalibus ; prothorace vix transverso, 

 ante basin transversim subsulcato, antice quam postice \ix 



