16 Mr. W. F. Kirby on 



behind, as well as the rhinarium, rather darker; the face 

 otherwise testaceous; legs inclining to rufous brown or 

 blackish. 



Wings yellowish hyaline, pterostigma dark reddish brown ; 

 tips of all the wings beyond light brown, fore wings with 

 twelve or thirteen antenodal and eleven or twelve postnodal 

 cross-nervures ; sectors of the arculus just connected at their 

 base ; triangle rather wide, with one or two cross-nervures, 

 followed by four or five rows of cells, decreasing and then in- 

 creasing ; two supra-triangular nervures ; subtriangular space 

 consisting of five to seven cells ; the base and more or less of the 

 supra-triangular space and upper part of the triangle clouded 

 with brown ; a large smoky-brown patch on the costa, 

 extending from just beyond the nodus over four cells on the 

 inner side of the nodus, and down to at least the upper sector 

 of the arculus. Hind wings with two large cupreous-brown 

 blotches at the base, separated by a narrow yellowish hyaline 

 band ; the upper one extends much beyond the triangle, and 

 on the costa is more or less continuous as far as the blotch on 

 the nodus, which nearly corresponds to that of the fore wings ; 

 the lower blotch is narrowly or not at all bordered outside 

 with hyaline, and extends nearly to the lower sector of the 

 triangle or further. In one specimen there is a dark spot on 

 the subnodal sector, halfway between the dark blotch on the 

 nodus and the clouded tip of the wings. 



Hah. Mackay, Queensland. 



Described from two female specimens. 



Allied to R. amaryllis, Selys, but easily distinguished by 

 the large dark blotch on the nodus of both wings. 



Rhyothemis prince'ps, sp. n. 



Long. corp. 28-32 millim. ; exp. al. 52-64 millim. ; long, 

 pter. 1\ millim. 



Head purplish above, face testaceous, rhinarium black, 

 labium yellow ; thorax and abdomen black in the male, the 

 former with a slight greenish-coppery reflexion on the sides ; 

 in the female reddish, the incisions and last three joints of the 

 abdomen black; legs black. 



Wings rather long and narrow, cupreous brown, iridescent, 

 darkest in the male, with a large vitreous spot on the costa 

 beyond the nodus in all the wings, a corresponding one on 

 the opposite margin, and a third at the tip of the wings ; the 

 apical spot varies much in size and is wanting in the only 

 male ; in some of the specimens there are one or two more 

 scattered vitreous dots. 



