56 DIOPTID.E. — NYCTEMERIDJE. 



DIOPTIDiE *. 



HYRMINA, milker. 



Hyrmnia trailii, n. sp. (Plate XIX. fig. 9.) 



Resembles Leucotfiyris astrea and is nearly allied to Hyrmina cyrna, from which it chiefly 

 differs in the absence of the subcostal orange spot in primaries and the different form of the 

 subapical hyaline streak. Wings hyaline, black-veined ; primaries with the borders black- 

 brown; two oblique brown bands, the first across the middle of the wing, the second (broader) 

 towards apex : secondaries with costa brown; outer margin black-brown, enclosing a well- 

 defined submarginal orange streak. Body brown; abdomen with a dorsal whitish line; 

 venter whitish. Expanse of wings 1 inch 6 lines. 



Forest behind Manaos, Amazons, August 2G, 1871 {J. W. H. Trail). 



I have named this interesting little species after its discoverer. 



STENELE, Walker. 

 Stenele calida, n. sp. (Plate XIX. fig. 3.) 



Wings above bright reddish orange : primaries with the external two fifths black-brown ; 

 a quadrate spot beyond the end of the cell, and two smaller submarginal spots on the median 

 interspaces bright ochre-yellow : secondaries with a narrow dentate-sinuate black-brown outer 

 border. Body bright reddish orange; head and collar yellow, with central black spots ; 

 antcnnse black; thorax with a black spot on each shoulder; abdomen with a black lateral 

 line; anus black, with a central greyish spot. Wings below paler; primaries with the apex 

 chocolate-brown, yellow spots larger than above; costa yellow: secondaries with a yellow 

 streak on each interspace and in the cell ; a submarginal series of yellow spots ; blackish 

 border narrower than above : body below yellow ; legs streaked with black. Expanse of wings 

 2 inches 1 line. 



Mast Peru (Degand). 



Nearly allied to Stenele aletis of Felder. 



NYCTEMERIDiE. 



PTEROTHYSANTTS, Walker. 

 Pterothysanus laticilia. (Plate XIV. fig. 2.) 

 Pterothysanus laticilia, Walker, Cat. Lejp. 11, i. ii. p. 401. a. 1 (1854). 



Primaries black, irregularly blotched with white; a submarginal series of white spots : 

 secondaries white, crossed before the middle by an irregular black band ; a curved dentate- 

 sinuate discal band, and a submarginal series .»t' partially confluent spots, black : thorax black, 

 • The Dioptifo, as now restricted, are simplj the New-World representatives of the family Xyctcmoridie. 



