292 ME. W, F. KIEBT— A EEVISIOX OP 



nervures, no supratriangular nervures, nodal and subnodal sectors nearly straight, 

 gradually curved towards the hind margin, where there are two or three rows of 

 intermediate cells, lower sector of the triangle regularly undulated beyond the 

 middle and nearly as long as the upper ; hind wings rather broader than the fore 

 wings, with 10-13 antenodal and 13-15 postnodal nervures, the first two postnodals 

 not continuous, triangle free, its base placed at one fourth of the distance between 

 the arculus and the lower sector, followed by two rows of cells increasing ; no supra- 

 triangular nervures, three (rarely four) cross nervures in the lower basal cell, membra- 

 nule very small, sectors of triangle united at base: upper anal appendages of the 

 male slender, the lower one rather stout, fully as long as the others ; appendages of 

 the second segment not prominent, hamulus small, slender, recurved ; anal appendages 

 of the female very short. 



Type Nesoxenia cingulata, sp. n. 



Genus 48. Ageionoptera. 

 (Neuration, Plate LVI. fig. 3.) 

 Brauer, Verh. zool.-bot. Ges. Wien, xiv. p. 163 (1864), xviii. pp. 365, 367, 728 (1868) ; Reise d. 

 Novara, Neur. p. 100 (1866); Selys, Ann. xMus. Genov. xiv. p. 298 (1879). 



Frontal tubercle bifid ; eyes large, contiguous ; abdomen slender, longer than the 

 hind wings, the first three segments much inflated, segments 2 and 3 carinated, 

 segment 8 not perfoliate in female: wings rather long and narrow, the hind wings 

 not much broader than the fore wings, pterostigma rather long and broad ; fore 

 wings with 14-18 antenodal and 12-15 postnodal nervures, the first two or three 

 postnodals not continuous, cells of the postcostal area simple, triangle small, on a 

 level with that of the hind wings, free or traversed (rarely by two nervures), followed 

 by two rows of cells, increasing, or by three, and then a series of two increasing, 

 subtriangular space consisting of 2-5 cells, sectors of the arculus stalked, more or less 

 curved at the extremities, a supratriangular nervure only exceptionally present, one 

 cross ner^Tire in the lower basal cell, nodal and subnodal nervures undulating in the 

 middle, not much curved at the extremity, the intermediate cells bisected towards the 

 margins; hind wings with 14-16 antenodal and 11-15 postnodal nervures, the first two 

 postnodals not continuous, triangle free, followed by two rows of cells, its base placed 

 considerably beyond the arculus, no supratriangular nervures, one to three cross 

 nervures in the lower basal cell, sectors of the triangle united at base : anal appen- 

 dages of the male rather slender, as long as the eighth segment, the lower one not 

 much shorter than the others ; appendages of the second segment not conspicuous. 



Type Agrionoptera sexlineata, Selys. 



The neuration of A. i'notafa, Brauer, is figured. 



