TllK MVl;l.\l'ii|iA IN TIIK A rsi'K A M A N MlSKl'M i;K("H,K.M AN N. S7 



{)ri)(liKH'(l iiitii a i-Diic ; tliu lattci- lopre.seiit oiiu fourth ot' llie 

 total Icnutli of tlie process, ami its root is equal to about one 

 third of the bi'eadth of the process if measured at its base. 

 The proximal joint of tlie a))peiidag-es is shoi't, of the usual 

 form ; second joint short but bearing an immovable dij^-it nearly 

 as long' as the movable ; the a])ex is rounded ; the wai'ts of the 

 posterior (outer) edge are small and flat, not ujilike a stone 

 pavement. The last joint is rather stout with its end cut 

 obliquel}' ; the "harp" is composed of some twenty elongate 

 nodules oiMianicntcd with delicate concentrical ridges. Standing 

 in a line with the harp, is to be seen at the end of the digit a 

 more chitinized sjtace covered with minute dark dots, the 

 nature of which could not be ascertained. 



Female : — The anal sternite is very broad, and rounded ; 

 the length is equal to half of the breadth at the base ; it is 

 adorned with delicate fleecy hairs on its distal half and pax^tic- 

 ularly along the j)osterior margin. 



The opening of the sexual ducts in the ccjxas of the second 

 pair of legs is protected by three plates disposed as in the 



preceding species. The 

 pistal plate is strongly 

 chitinized, in shape of a 

 gradually tapering cone 

 with rounded apex, 

 reaching slightly beyond 

 the distal margin of the 

 coxa. This structure 

 seems to come very near 

 to that of C. tar</ioiiii, as 

 drawn by Prof. Silvestri; 

 but the total absence of 

 carina and depressions 

 on the last tergum pre- 

 cludes the identification 

 of these specimens with 

 Pig.. 22— Cy/iosoma /'nin'//if>i.ws. Right coxa of the Queensland form. 



'2nd pair of ¥. showing vulva. v ^^ N'cntral 

 plate; '-s = tracheal stalk. 



One male from Peni'ith and three females from Cambewai'ra, 

 New South Wales. 



