from the Amazons &c. 61 3 



interrupted by one or more rows of two, and increasing to 

 four towards the hind margins ; no supra-triangular nervules, 

 only one cross-nervule in the lower basal cell ; subtriangular 

 space consisting of tliree cells. 



Macapa, Feb. 25, 1896. 



Possibly a large variety of M. aftenuafa, but in that species 

 the band on the sixth segment of the abdomen meets on the 

 back, and that on the seventh is smaller, and sometimes nearly 

 obsolete. The large size of M. venusta gives it a superficial 

 resemblance to Trithemis umhrataj Linn. 



^schnidse. 



GOMPHIN^. 



Genus Cyclophylla, De Selys. 

 Cyclophylla Calverti, sp. n. (PI. XII. fig. 2.) 



Long. corp. 47 millim. ; exp. al. 57 millira. ; long. pter. 

 4 millim. ; long, append, anal. 2 millim. 



Male. — Head green ; a reddish-brown band, expanded 

 behind on each side, covering the antennee and ocelli ; mentum 

 bordered with yellow above, and tlie space between this and 

 the mandibles ferruginous ; a yellow spot on each side above 

 the base of tlie mandibles. Thorax reddisli brown, with two 

 green bands, very broad in front and narrowing and con- 

 verging behind ; traces of a second band between this and 

 the fore wings ; pleura with three green bands, the last the 

 broadest; below the middle they shade into yellow and ferru- 

 ginous. Legs short, rufous ; femora greenish yellow beneatli, 

 and shortly serrated ; appendages of the second segment, and 

 lateral lobes at tlie base of the abdomen large and conspicuous. 

 Interalary space marked with a rather broad olive-green 

 stripe, and with a conspicuous yellow spot between the bases 

 of each pair of wings. Abdomen greenish brown at the base, 

 and blackish from before the middle of the third segment ; 

 fourth, fifth, and sixth segments with greenish lateral spots, 

 that on the fourth largest j seventh with a lateral green dash 

 extending for nearly one third of its length ; eighth and ninth 

 segments slightly expanded on the lower edges ; tenth 

 segment rufo-testaceous ; upper appendages black, semi- 

 circular, slightly hairy, and incurved ; a strong tooth on the 

 inner lower edge at one third of their length ; tips pointed, 

 preceded by a blunt tooth, and a lobe between this and the 

 point. Lower appendage short, semicircular, pointed at both 

 ends. Wings hyaline, with a slight yellowish tinge, and 



