608 Mr. W. F. Kirby on Neuroptera 



One specimen from each locality. The specimen from 

 Parintins bears a note : — " In the forest, a considerable 

 distance from the river." 



Genus Erythemis, Hagen. 



Erythemis peruviana. 

 Libellula peruviaiia, Ramb. Ins. KiSvr. p. 81 (1842), 



W. end of Parand, de Buyassu, Jan. 15 and 16 ; Santarem, 

 Jan. 27 and 31 ; Manaos, Feb. 10; Macapa, Feb. 25. 



All the males taken at the first locality were immature, 

 resembling the female in coloration. Several fully-coloured 

 males, however, were taken at Santarem, some of which are 

 marked " Opposite shore to the town." 



Genus Micrathyria, Kirb. 

 Micrathyria Camhridgei, sp. n. (PI. XIII. fig. 4.) 



Long. Corp. 34 millim. ; exp. al. 62 millim. ; long. pter. 

 3 millim. 



Male. — Head : face buff, vertex chalybeous blue, mandibles 

 and suture of mentum black ; occiput ferruginous, spotted 

 and streaked above and on the sides with yellow. Prothorax 

 and pleura brassy green, a short slender yellow line in front 

 on each side, a slender line (angulated downwards in the 

 middle) below it, and two very broad straight yellow bands 

 on the pleura, with a narrow one between them, the hinder- 

 most covering the whole of the liinder part of the pleura. 

 Tegulaj with a small yellow spot on each, and another in front. 

 Interalary portion of the meso- and metatliorax pulverulent 

 blue, intersected by black sutures. Abdomen shining black; 

 a transverse green mark on each side of the front of the second 

 segment above ; a short pointed longitudinal green stripe at 

 the base on the sides of segments o and 4, a small orange 

 spot on the sides of segment 5 at the base, an orange dot on 

 the sides at the base of segment 6, and an oblong green 

 blotch on each side of segment 7, separated above by the 

 central carina. Legs black ; femora yellow towards the 

 base beneath. AYings hyaline, the tips rusty brown beyond 

 the pterostignia ; nervures black, pterostigma dark reddish 

 brown. Fore wings with 11-12 autenodal cross-nervules, 

 the last not continuous, and 7 postnodal cross-nervules, the 

 two first not continuous. Triangle traversed, followed by 

 two rows of cells, increasing to three beyond the middle, and 

 terminating in four on the hind margin ; subtriangular space 



