no. 3611 CALYSTRYMA FIELD 21 



Female genitalia as illustrated by figure 18 with ductus bursae 

 and bursa copulatrix relatively short, their combined lengths just 

 over three and one-half times the width of superior genital plate; the 

 latter with its free edge divided into two lateral elements, each with 

 two strongly developed spurlike processes, about equal in size and 

 dis tally directed. 



Type-locality. — Teffe ("Ega"), State of Amazonas, Brazil. 



Additional type data and location of type. — This species was 

 described by Hewitson from a single specimen, the holotype male 

 (in the collection of H.W. Bates), now in the collection of the British 

 Museum (Natural History) and labeled with the type number Rh. 

 955. 



Method of identification. — The original description, the original 

 colored illustrations, and a specimen compared by William Schaus 

 with the holotype are the basis for the present identification of the 

 name C. trebula. 



Distribution. — Widely spread over the American tropics from 

 Mexico south to Brazil and Peru. 



Mexico: State of Vera Cruz, San Rosa (April). Guatemala: Department 

 of Izabal, Cayuga (May). Costa Rica: Province of San Jose, Guapiles (850 ft., 

 May); Province of Lim6n, La Florida (500 ft., March). Panama: Province of 

 Chiriqui, Chiriqui (no date) ; Province of Bocas del Toro, Bocas del Toro (April) ; 

 Province of Col6n, Porto Bello (April), Rio Trinidad (March); Canal Zone, 

 Barro Colorado Island (March). Colombia: Department of Cauca, Jalima (no 

 date). Peru: Department of Loreto, Achinamiza (6001 ft., September). Brazil: 

 State of Amazonas, Teffe (no date). 



Material studied. — Twenty-seven males and two females, in- 

 cluding their genitalia. 



12. Calystryma tifla, new species 



Figures 12, 19; Plates 1 (figs. 15, 16), 2 (figs. 15, 16) 



Male (pi. 1: figs. 15, 16). — Wings above entirely dark brown as in 

 C. barza, C. keta, and the other brown-colored species of Calystryma. 

 Wings underneath with ground color pale brown, paler than in C. naka, 

 about as in C. barza and with maculation differing from the latter 

 only in having the marginal blue spot of interspace Cu 2 on hindwing 

 larger and the white marginal line on this wing more distinct. 



Length of fore wing 13 mm. 



Male genitalia as illustrated by figures 12b-e with harpes fused 

 only at base and unique in shape both in lateral and in ventral views, 

 being bifurcate in ventral view and showing a large spurlike projection 

 from dorsal margin near distal end in lateral view; with aedeagus 

 extremely long and distinctly upcurved distally; with gnathal arms 

 acute and broadly and evenly bent upward, without carina; with 



