THE STTBFAMILT LIBELLULINtE. 297 



of the hind wings, traversed, the base hardly oblique, followed by two rows of cells, 

 increasing to three in the middle, and to four or five on the hind margin, no supra- 

 triangular nervures, one cross nervure in the lower basal cell, subtriangular space 

 consisting of three cells, sectors of the arculus stalked, somewhat arched at the extre- 

 mities, nodal and subnodal nervures only slightly waved towards the base, the latter 

 more arched on the hind margin, intermediate cells only divided on the hind margin, 

 sectors of the triangle rather long ; hind wings rather broader than the fore wings, 

 with 13-14 antenodal and 12-13 postnodal nervures, the first three postnodals not 

 continuous, triangle traversed and followed by two rows of cells, increasing, no supra- 

 triangular nervures, tiiree cross nervuns in the lower basal cell, sectors of the triangle 

 united at base : anal appendages as long as the eighth segment, thickened before the 

 extremity and pointed, lower appendage shorter than the others, broad, bifid at the 

 extremity ; appendages of the second segment very large, especially the hinder lobe, 

 which is inflated like a bladder, the lateral processes preceding it are like very thick 

 pincers, the apices directed inwards. 

 Type Misagria parana, sp. n. 



Genus 57. Macrothemis. 



(Plate LIV. fig. 3; claws, Plate LVII. fig. 11.) 



Hagen, Stett. ent. Zeit. xxix. p. 281 (1868) ; Brauer, Verb, zool.-bot. Ges. Wien, sviii. p. r34 

 (]868j. 



Frontal tubercle broad, truncated above ; eyes contiguous in front for rather a long 

 space ; abdomen slender, as long as or longer than the hind wings, the basal and terminal 

 segments distinctly but not excessively thickened in both sexes, segments 2 and 3 (and 

 sometimes 4 partially) carinated, segment 8 not perfoliate in female : wings long and 

 narrow, pterostigma short; fore wings with 12-15 antenodal and 6-9 postnodal nei- 

 vures, the last antenodal and the first two postnodals not continuous, cells of the post- 

 nodal area simple, triangle small, rather beyond the level of that of the hind wings, 

 free, followed by two rows of cells, only increasing towards the hind margin, no supra- 

 triangular nervures, one cross nervure in the lower basal cell, subtriangular space 

 consisting of one or two cells, most frequently bisected by a nearly perpendicular 

 nervure, sectors of the arculus stalked, rather suddenly curved at the extremities, the 

 nodal sector only slightly waved at the base, the subnodal nearly continuous, the inter- 

 mediate cells bisected towards the hind margin ; hind wings with 9-10 antenodal 

 and 7-10 postnodal nervures, the two or three first postnodals not continuous, 

 triangle free, its base nearly corresponding with the arculus, followed by two rows of 

 cells increasing (sometimes the series is interrupted by a single cell), no supratriangular 

 nervures, one cross nervure in the lower basal cell, sectors of triangle rising from a 

 point : upper anal appendages of the male as long as the eighth segment, pointed, and 

 triangularly thickened below before the apex ; lower appendages two thirds as long, 



VOL. XII. — PART IX, No. 7. — August, 1889. 2 x 



