NO - 3611 CALYSTRYMA FIELD 7 



Location of types. — Holotype and six paratypes in the United 

 States National Museum, one paratype each in the collections of the 

 British Museum (Natural History) and the American Museum of 

 Natural History (New York) . 



Distribution.— In widely separated localities from Costa Rica 

 south to Peru, Bolivia, and Brazil. 



Costa Rica: Province of Limon, Lim6n (May), La Florida (500 ft., March); 

 Province of San Jose, Carillo (no date), Guapiles (S50 ft., May, September). 

 Panama: Province of Colon, Porto Bello (April) ; Rio Trinidad (March). British 

 Guiana: Bonaoico (no date). French Guiana: Colony of Guiana, St. Laurent 

 (no date). Ecuador: Department Amazonas, Upper Rio Maranon (October); 

 Department of Loreto, Achinamiza (6001 ft., January). Brazil: State of Rio de 

 Janeiro, Rio de Janeiro (no date). Bolivia: Department of El Beni, Chapare 

 (no date). 



Material studied. — Twenty males and two females, including 

 their genitalia. 



2. Calystryma atrox (Butler), new combination 



Figures 2, 13; Plates 1 (figs. 3, 4), 2 (figs. 2, 3), 3 (figs. 1, 2) 



Tmolus atrox Butler, 1877, Trans. Ent. Soc. London, 1877, p. 140. — Comstock 

 and Huntington, 1959, Journ. New York Ent. Soc, vol. 67, p. 82. 



Thecla atrox (Butler).— Druce, 1907, Proc. Zool. Soc. London, 1907, p. 609.— 

 Draudt, in Seitz, 1920, Die Gross-Schmetterlinge der Erde, vol. 5, p. 

 795; 1921, ibid., pp. 824, 826.— Schaus, 1920, Ent. News, vol. 31, p. 176. 



Thecla gent ilia Schaus. — Schaus [incorrect synonymy] 1920, Ent. News, vol. 31, 

 p. 176. — Draudt [not Schaus] in Seitz, 1921, Die Gross-Schmetterlinge der 

 Erde, vol. 5, p. 824. — Comstock and Huntington, [not Schaus] 1960, Journ. 

 New York Ent. Soc, vol. 68, p. 117. 



Male (pi. 1: figs. 3, 4; pi. 3: figs. 1, 2). — Wings above dark brown, 

 lacking white marginal line on hindwing, otherwise as in C. keta. 

 Wings underneath with ground color light brown. Hindwing on this 

 surface with red markings darker, with black pupil that centers 

 marginal ocular marking in interspace M 3 in C. keta, absent in this 

 species and with black pupil in ocular marking of interspace Cu x 

 much larger than in C. keta, C. blora, or C. naka. The red marking 

 inward from this pupil smaller, not extending to postmedian tripartite 

 line. The latter is faintly outlined with red along its inner side only 

 below vein Cu x , otherwise as in C. keta. 



Length of forewing 12.5-14 mm. 



Male genitalia as illustrated by figures 2b-e with harpes fused only 

 at base; with aedeagus distally curved upward (much more than in 

 C. keta) and curved also to the right; with gnathal arm acute and 

 lacking a carina but in ventral view it is sometimes thickened just 

 before distal end; as in the other species of Calystryma the shape of 



