BY AllTHUK M. r-KA. 607 



width. Length 3, ro.struin |(vix); width 1^; variation in lengtli 

 2^-3^ mm. 



Hah. — W. Australia : King George's Sound. 



In this (tlie typical) species, the abdominal ridge is less distinct 

 than in the others, which may account for its having been over- 

 looked by Mr. Pascoe in describing it, although subsequently 

 (when describing .i4w2/(/a^a) its presence was noted. 



Ampaoia cognata, n.sp. 



Piceous-brovvn, legs and antennsR paler. Densely clothed with 

 dingy brown scales (paler on under surface and legs), with sooty, 

 suberect scales scattered about on prothorax, and more or less 

 distinctly on the alternate interstices of the elytra; elytra with a 

 patch of whitish scales on basal third, and which is feebly trace- 

 able on to shoulders. Pectoral canal almost glabrous. 



Scidjyture apparently as in the preceding, except that the 

 abdominal ridge is more distinct. Length 2| mm. 



Hab.—^. S. AVales : Sydney(A. M. Lea). 



A specimen from Eyre's Peninsula (the Rev. T. Blackburn's 

 No.691) differs in being smaller(2 mm.), and rather stouter than 

 the one from Sydney. I have not cared to abrade either of the 

 specimens, except to make sure that the scutellum is absent. 

 The species is evidently close to A. erinacea, but it appears to 

 be distinct on account of its clothing, and the more distinct 

 abdominal ridge. 



Ampagia squamigeua Oil. 

 Idotasi'i. squamiijera Oil., Mem. Aust. Mus. 1899, p. 19. 

 Hah. — Lord Howe Island. 



Genus Am YD ALA Pascoe, Journ. Linn. Soc, 1871, p.213. 



Club of antennas cylindrical, as long as funicle, two basal joints 

 long and subequal, two apical very short. All else as in Ampagia. 



The shape of the club is so strongly at variance with all the 

 species of Ampagia, that it is as well, perhaps, to recognise 

 Amydala. It is remarkable, however, that two genei'a should 

 have such abnormal hind femora and abdomen in common. 



