neio or little-known 8/)ecies o/Libellulinse. 233 



3. Perithemis niooma, sp. n. 



Exp. al. 31 milliin. 



Female. — Head dull yellow, frontal tubercle brown ; thorax 

 reddish brown, with a long pale green oval spot on each side 

 above ; sides greenish white, with a reddish-brown stripe on 

 the principal suture. Abdomen yellow, the carina? black, and 

 a broad zigzag brown stripe above, so that the upper surface 

 might either be regarded as brown with yellow markings or 

 yellow with brown markings. Fore wings with seven ante- 

 nodal and four postnodal cross nervures, the last antenodal and 

 first postnodal not continuous ; hind wings with five ante- 

 nodal and four postnodal cross nervures, the first postnodal 

 not continuous ; triangles free, followed by two rows of post- 

 triangular cells, increasing ; subtriangular space consisting of 

 one cell ; pterostigma brownish yellow, between black ner- 

 vures. Wings hyaline, with connected brown markings, 

 extending from the base along the lower subcostal space, and 

 then spreading upwards to the costa on both sides of the 

 nodus and to within two or three cells of the pterostigma, and 

 downwards across the sectors of the arculus, and between 

 them to their origin, filling the triangle in the fore wings, and 

 extending to the first cell between its sectors on the hind wings; 

 another curved and pointed tooth extends from below the 

 nodus across the posttriangular space as far as the lower sector 

 of the arculus. 



This curious species, which is perhaps most nearly allied to 

 P. tenera^ Say, has a striking resemblance to the African 

 genus Palpopleura, 



4. CannapMla insularis. 



Cannaphila insidaris, Kirby, Trans. Zool. Soc. Lond. xii. p. 341, pi. liii. 

 fig. 1, pi. h-ii. fig. 9 (1889). 



There are three females and one male in the Dublin Mu- 

 seum from Jamaica ; the former differ little from the types 

 of the species from Haiti, the male is pulverulent blue. There 

 are sometimes two cross nervures in the lower basal cell of the 

 fore wings on one side ; there are always two on the hind 

 -wings on both sides. 



Ann. & Mag. N. Hist. Ser. 6. Vol. iv. 16 



