NEOTROPICAL MICROLEPIDOPTERA, VI — CLARKE 199 



Orsotricha venosa (Butler) 



Figure 1; Plate 1 (Fig. 1) 



Topeulis venosa Butler, 1883, Trans. Ent, Soc. London, 1883, p. 77. — Meyrick, 

 1914, Exotic Microlepidoptera, vol. 1, p. 269; 1922, in Wytsman, Genera 

 insectorum, fasc. 180, p. 45. — Fletcher, 1929, Mem. Dept. Agric. India, 

 Ent. Ser., vol. 11, p. 156. — Gaede, in Bryk, 1938, Lepidopterorum cata- 

 logus, part 88, p. 87. — Clarke, 1963, Catalogue of the type specimens of 

 Microlepidoptera in the British Museum (Natural History) described by 

 Edward Meyrick, vol. 4, p. 341, pi. 167, figs. 1-le. 



Type: British Museum (Natural History). 



Distribution: Chile. 



The genitalia of the male are here figured for the first time. 



The two species previously associated with 0. venosa belong to the 

 family Oecophoridae and are treated below. Fortunately, a generic 

 name is available for them. 



Oecophoridae 



PaUnorsa Meyrick 



Palinorsa Meyrick, 1924, Exotic Microlepidoptera, vol. 3, p. 99. — Fletcher, 1929, 

 Mem. Dcpt. Agric. India, Ent. Ser., vol. 11, p. 1.59.— Gaede, in Bryk, 1938, 

 Lepidopterorum catalogus, part 88, p. 87. 



Meyrick proposed Palinorsa for Pleurota literatclla Busck after he 

 had assigned that species to Orsotricha. Despite the obvious close 

 relationship between P. literatclla and 0. raptans, Meyrick left the 

 latter species associated with 0. venosa (Butler). I now include four 

 species in Palinorsa. 



Key to the Species of Palinorsa 



1. Head brown or brownish 2 



Head ocherous white zonaria Clarke, new species 



2. Metathorax clothed with red hairlike scales 3 



Metathorax without red hairlike scales raptans (Meyrick) 



3. Forewing with conspicuous dark longitudinal streak. . . literatclla (Busck) 

 Forewing without conspicuous dark longitudinal streak. 



acritomorpha Clarke, new species 



Palinorsa literatella (Busck) 

 Figure 2 



Pleurota literatella Busck, 1911, Proc. U.S. Nat. Mus., vol. 40, p. 205, pi. 8, fig. 12, 

 Palinorsa literatella (Busck), Meyrick, 1924, Exotic Microlepidoptera, vol. 3, p. 99. 



Type: USNM. 



Distribution: French Guiana, Rio Maroni. 



Male genitalia: Harpe sub triangular; cucullus rounded with serrate 

 ventral edge produced as a strong thornlike process; overlapping 



