238 REVISION OF THE AMYrTERIDES, iii.. 



rtt'tli, sixtli smaller, tlieiu-e very suddenly dimiiiishiiio' in width to 

 base; apical and basal margins each with a row of small granules, 

 width across base 5 mm. Elytra (16 x 10 mm.) : apex with a 

 strong flange of six or seven tubercles on each side not extending to 

 middle; disc between tubercles roughly granulate; suture granu- 

 late; with four rows of strong tubercles, seven in the first row, ex- 

 tending from near base to apex, strong, separate, conical, and 

 spinose, especially on declivity; second row with eight from base 

 to declivity, tubercles strong, closer together; third row with six 

 spinose tubercles outwardly directed, from middle to near lateral 

 flange; fourth I'ow with six^ large, outwardly directed tubercles, 

 then with more obsolete ones : sides with rounded, obsolete 

 tubercles. Beneath subnitid; fifth ventral segment concave, with 

 scattered punctures; prosternal tubercles small but definite; an- 

 terior tibia^ with s]")arse setae arising from small granules along tlie 

 length of the tibia^. Dimensions: ^, 25 x 10 mm. 



Hal). — West Australia, King George Sound; type in ?klacleay 

 Museum. 



The above desci'iption was drawn up from the type in the 

 ■Nlacleay Collection, which lias tlie elytral derm evidently granulose 

 between the rows of tubercles. Recently, I have had a number of 

 specimens submitted to me by the authorities of the South Aus- 

 tralian ]\luseum. These I cannot sejiarate from M. draco, but they 

 show a good deal of variation, both in shape and in the degree of 

 granularity of the derm, so much as to cause me some doubt as to 

 the validity of M. insignis as a species. All tliese specimens, which 

 include three females, have the median prothoracic tubercles few in 

 number, and, even if on this account alone, it seems advisable to 

 give a distinguishing name to the form T have called M. insignis. 



Only the male Avas known to Macleay, but Lea has recently 

 described the female ; the specimens ])efore me are, apart from tlie 

 tubercles on the prothorax, extremely like the female I have 

 described below as M. insig^iis, 9; they have, however, the centre 

 of the forehead more convex, and the derm slightly more graiuilose. 

 One male is labelled Northern Territory ; the others are from West 

 Australia, without exact locality. 



