18 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 123 



as in C. keta, with red ocular markings present in both interspace 

 M 3 and Cui on hindwing and with red present along tripartite post- 

 median line almost to costa. 



Length of forewing 13-14.5 mm. 



Male genitalia as illustrated by figures 9b-e with harpes fused 

 only at base; with aedeagus nearly straight, except distal end, which 

 is upcurved distinctly, more so than in C. gentilla; differing from all 

 other species of Calystryma in the shape of the gnathal arm, which is 

 elongated distally, almost needle-like, with carina large, greatly 

 enlarging base of gnathal arm toward its elbow; lateral lobe of uncus 

 similar to that of C. gentilla with its posterior lobe broader. Eighth 

 tergite (fig. 9a) cordate in shape, deeply incised along posterior 

 margin with this incision broad and troughlike and thus quite easily 

 distinguished from C. gentilla, posterior lobes large, blunt, and concave, 

 not rounded, differing from those of C. barza, especially in the greater 

 undulation before distal end of lateral margin, causing the lateral 

 angle to be more pronounced and rounded. 



Female. — (pi. 2: fig. 13). — Forewing above dark brown with a 

 slight bluish cast in the basal portion. Hindwing dark brown on 

 costal margin above cell and vein R s , in extreme base of cell and 

 beyond cell in interspaces Mi and M 2 . Shining blue in outer portion 

 of cell and between veins M 3 and 2d A. With a white marginal line 

 extending from vein 2d A to M 3 and with marginal dark brown spots 

 in interspaces M 3 and Cui. Anal lobe entirely dark brown. Wings 

 underneath not distinguishable from those of the male. 



Length of forewing 13.5 mm. 



Female genitalia as illustrated by figure 23 with ductus bursae 

 and bursa copulatrix relatively short, their combined lengths being 

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

 the latter with its free edge divided into two lateral elements that are 

 each large, rounded, lobelike ridges lacking spurlike processes or any 

 sharp angles. 



Type-locality. — Bugaba, Province of Chiriqui, Panama. 



Additional type data. — This species was described by Godman 

 and Salvin from an unspecified number of males from Teleman, 

 Guatemala, Chontales, Nicaragua, and Bugaba, Panama. The 

 Bugaba specimen (collected by Champion) and now in the collection 

 of the British Museum (Natural History), upon which the original 

 colored illustration was based is here designated the lectotype. 



Method of identification. — A topotype matching in every way 

 the maculation of the original colored figure and compared by William 

 Schaus with the original series in the British Museum is the basis for 

 the present identification (fig. 9) of C. pisis. 



Distribution. — From Guatemala south into Panama. 



