from the Amazons dsc. 601 



Eyes connected by a moderately long suture. Head testa- 

 ceous, sometimes greenish above, frontal tubercle and upper 

 part of clypeus metallic blue ; mandibles blackish ; occipital 

 triangle cupreous. Thorax black, with a broad green band 

 on each side, obsolete in front ; pleura green, separated into 

 spots and bands by broad black stripes on the sutures. 

 Abdomen black, with two orange stripes, interrupted by the 

 carinse and incisions on each side, the upper ones narrow, the 

 lower ones broad (these are frequently nearly obliterated in 

 the males). Legs rufo-testaceous towards the base and 

 blackish at the extremity, clothed with long slender hairs ; 

 the hind femora furnished with short blunt tubercles beneath, 

 and the middle femora with short sharp serrations. Anal ap- 

 pendages as long as the last segment, much arched, slightly 

 thickened and hairy towards the extremity ; middle appendage 

 very broad and flattened towards the base and pointed at the 

 extremity, as long as the lateral ones. Abdomen slenderest 

 in the middle, somewhat thickened towards the extremity. 



AYings hyaline, tinged with greenish yellow ; fore wings 

 with 10-11 antenodal cross-nervules (the last not continuous) 

 and 5-6 postnodals ; pterostigma dark brown, equally long on 

 the fore and hind wings ; sectors of the arculus distinctly 

 stalked ; triangle free, followed by two rows of cells, only 

 increasing towards the hind margin ; one subtriangular space, 

 sometimes divided by a vertical nervule on one side ; nervures 

 fuscous, membranule small, whitish. Claws bifid. 



The female varies somewhat in the colour of the wings, 

 which are more deeply tinged with sulphur -yellow than in 

 the male, especially towards the anal angle of the hind wings, 

 whereas the tips of the wings are of a more smoky colour, 

 the centre of the wings being sometimes clear hyaline. The 

 appendages on the four hind legs have more of the appearance 

 of short stiff bristles than in the male. 



Hab. Santarem {Bates). 



Described from three males and three females. 



I take the opportunity of describing this very distinct 

 species in the present paper, though it was not among 

 Mr. Austen's captures.] 



Genus DiASTATOPS, Rambur. 



Diastatops dimidiata. 



Lihelluln dimidiata, Linn. Syst. Nat. (ed. x.) i. p. 545. n. 14 (1758). 



Para, Jan. 10 [E. E. A.) ; W. end of Parand de Buyassu, 

 Jan. 17, 1896 (//. W. Marsh). 



Previously in the Museum from Par^. 

 Ann. & Mag. N. Hist. Ser. 6. Vol. xix. 42 



