612 Mr. W. F. Kirbj on Neuroptera 



being more gradually thickened at the base and only very 

 slightly towards the tip, thus approaching TrUhemis. The 

 traversed cell of the fore wings in the femfle specimen from 

 Breves might cause some doubt as to whetiier it is the true 

 female of this species, but that one of three males from Par;£, 

 previously in the collection of the Museum, has also the 

 triangles of the fore wings traversed by a nervure, though it 

 does not differ otherwise from the other males of the species 

 before me. 



Micrathyria attenuata. 



Trithemis (?) attenuata., liirb. Trans. Zool. Soc. Lond. xii. p. 328, 

 pi. liii. fig. 2 (1889). 



Para, Jan. 7, 8, and 10 ; W. end of Parand de Buyassu, 

 Jan. 16 ; Macapa, Feb. 25, 1896. 



The types are from Santarem. Mr. Austen obtained 

 several specimens of both sexes at Pard (one very brightly 

 coloured female may have had its colours changed by cyanide) , 

 and a very dark specimen belonging to the variety with 

 suffused wings, mentioned in the original description, from 

 Parang de Buyassu. 



Micrathyria venusta, sp. n. (PI. XIII. fig. 1.) 



Long. corp. 35 millim. j cxp. al. 57 millim. ; long. pter. 

 3 millim. 



Male. — Blue-black, face yellow, vertex purplish brown, 

 lower mouth-parts yellowish brown, occiput black, the lower 

 occipital part of the eyes bordered behind with a slender 

 yellow line. Abdomen with some rather indistinct trans- 

 verse testaceous markings towards the base, but the hinder 

 part of the third segment and the front part of segments 4-7 

 with a longitudinal lateral testaceous stripe on each — that on 

 the sixth is oblong and that on the seventh forms an even 

 band across the basal upper half of the segment. Anal 

 appendages testaceous, the upper one rather slender, pointetl, 

 and a little longer than the lower one, which is very broad 

 and rounded at the extremity. Wings hyaline, crossed by a 

 broad smoky-brown band, with the centres of the cells pale, 

 from just before the level of the nodus nearly to the ptero- 

 stigma ; fore wings only slightly brownish at the base, but 

 hind wings with a smoky-brown patch at the base as tar as 

 the triangle. Legs black, femora rufo-teslaceous at the base 

 and beneath. Fore wings with 10 anteiiodal crcss-nervules, 

 the last not continuous, and 10-11 postnodals; triangle 

 traversed, followed by three rows of post-triangular cells, 



