no. 3611 CALYSTRYMA FIELD 19 



Guatemala: Department of Izabal, Cayuga (June, August, September). 

 Costa Rica: Province of Lim6n, La Florida (500 ft., March). Panama: Prov- 

 ince of Chiriqui, Bugaba (no date); Province of Col6n, Porto Bello (April), Rio 

 Trinidad (March); Canal Zone, Barro Colorado Island (March), Alhajuela (April). 



Material studied. — Nine males and one female, including their 

 genitalia. 



10. Calystryma barza, new species 



Figure 10; Plate 1 (figs. 13, 14) 



Male (pi. 1: figs. 13, 14). — Wings above dark brown as in C. keta, 

 C. atrox, C. Mora, and C. naka. Wings underneath with ground 

 color pale brown, maculation very much like that of C. naka with a 

 great deal of orange red along inner side of tripartite postmedian 

 line, especially in interspace Cu x , with slightly smaller black pupils 

 in center of marginal ocular markings of interspace M 3 and Cu 2 and 

 with the marginal blue spot in interspace Cu 2 greatly reduced because 

 of the extension of orange red from the interspaces on either side. 



Length of forewing 12.5-13 mm. 



Male genitalia as illustrated by figures 10b-e with harpes fused 

 only at base and in lateral view with distal two-thirds of ventral margin 

 very convex and thus differing from all other species of Calystryma; 

 with aedeagus nearly straight and distally greatly curved to the 

 insect's left; with gnathal arm acute and upturned at distal end and 

 with carina before middle and small; lateral lobe of uncus slightly and 

 bluntly produced at lower angle with lower margin slightly undulate. 

 Eighth tergite (fig. 10a) similar to that of C. pisis with anterior pro- 

 jection broader and indented and with troughlike incision of posterior 

 margin much broader inwardly than at free margin, the posterior 

 lobes thus formed slightly concave along free margin. 



Female. — Unknown. 



Type-locality. — "Upper" Rio Marafion, Department of Ama- 

 zonas, Peru. 



Additional type data. — Described from the holotype male and 

 two male paratypes with data as follows: holotype, locality as given 

 above, 6101 ft., Jan. 1, 1925, H. Bassler Collection, genitalia prepara- 

 tion WDF no. 5004; one paratype, Rio Santiago, Department of 

 Amazonas, Peru, 6012 ft., Nov. 30, 1924, H. Bassler Collection, 

 genitalia preparation WDF no. 3157; and one paratype, Collection 

 William Schaus, the paratype of C. malta (having its abdomen miss- 

 ing) that is mentioned under the discussion of that species. 



Location of types. — Holotype and one paratype in the American 

 Museum of Natural History (New York) , one paratype in the United 

 States National Museum. 



Distribution. — Known only from Peru. 



Material studied. — Two males, including their genitalia. 



