328 MR. W. F. KIRBY— A REVISION OF 



postnodals not continuous; pterostigma smoky brown, sometimes a little paler at the 

 ends, between black nervures ; triangle ordinary, followed by three rows of cells; hind 

 wings hyaline, slightly tinged with yellow at the base, and occasionally on the disk, 

 and with reddish nervures, towards the margins the nervures shade into brown, the 

 subcostal nervure being conspicuously dark on all the wings throughout its whole 

 length in the female, and beyond the nodus in the male. Hind wings with G antenodal 

 and 9 postnodal nervures, the first three postnodals not continuous; triangle followed 

 by two rows of cells. 



Ilai. India. 



Appears to be a common species. Somewhat resembles the European S. striolatuin, &c. 



Trithbmis eubea. 



Long. Corp. 32 millim. ; exp. al. 50—56 millim. ; long. pter. 2-3 millim. 



Bright red, the prothorax marked with a conspicuous black spot on each side above 

 the base, opposite the head, and the upper part of the suture below the front wings 

 also marked with black. Abdomen slightly thickened at the base, moderately broad, 

 the dorsal carina very strongly marked, especially towards the tip ; anal appendages 

 of the male rather longer than the ninth segment, the lower one not much shorter 

 than the others, those of the second segment not very conspicuous. Wings hyaline, a 

 little tinged with yellow in some of the cells at the base ; nervures red, 9 antenodals, 

 the last not continuous, on the fore wings, and G on the hind wings, 5 or G postnodals, 

 the first two or three not continuous ; pterostigma variable in length, yellow between 

 black nervures. 



Hab. Australia and New Hebrides. 



Tbithemis (?) ATTEXUATA. (Plate LIII. fig. 2.) 



Long. corp. 30-35 millim. ; exp. al. 44-53 millim. ; long. pter. 2-2^ millim. 



Face reddish tawny or yellowish, the frontal tubercle and summit of clypeus coppery 

 green. Head black behind, with small yellow spots behind the eyes and behind the 

 occipital triangle. Thorax black, sides often more or less reticulated with yellow, and 

 pruinose above in male, or yellow with slender reddish lines in female. Legs black, 

 base of the femora tawny. Abdomen black, slender, gradually thickened at base and 

 tip, basal segment more or less transversely banded with yellow, segments 4-7 with 

 longitudinal stripes on the sides, longest and united at the base on segments 4 and 5, and 

 broadest and united broadly behind on the back, but not reaching the hinder suture, 

 on segments 6 and 7 ; anal appendages yellow, slightly tipped with black. Fore wings 

 with 10-11 antenodal nervures and 9-11 postnodal nervures, the last antenodal and 

 the first two postnodals not continuous ; triangle traversed, followed by one or two rows 

 of three cells, and then a series of two increasing, rarely three throughout ; hind wings 

 with 8-9 antenodal and 9-10 postnodal nervures, the first two postnodals not con- 



