16 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 123 



Additional type data. — Described from the holotype male and 

 allotype female with data as follows: holotype, locality as given above, 

 USNM type no. 24907, no date, Collection Brooklyn Museum, geni- 

 talia preparation WDF no. 3178; allotype, "Middle" Rio Ucayali, 

 Department of Loreto, Peru, 6167 ft., Aug. 24, 1928, H. Bassler (Col- 

 lection, genitalia preparation WDF no. 5089. 



Location of types. — Holotype in the United States National 

 Museum. Allotype in the American Museum of Natural History 

 (New York). 



Distribution. — Known only from the holotype and allotype, 

 which, as mentioned above, are from separate localities in Brazil 

 and Peru. 



Material studied. — One male, one female, including their 

 genitalia. 



8. Calystryma gentilla (Schaus), new combination, new status 



Figures 8, 17; Plates 1 (fig. 11), 2 (figs. 11, 12) 



Thecla gentilla Schaus, 1902, Proc. U.S. Nat. Mus., vol. 24. p. 420.— Draudt, in 

 Seitz, 1920, Die Gross-Schmetterlinge der Erde, vol. 5, p. 801; 1921, ibid., 

 vol. 5, p. 828. [For Schaus, 1920, Draudt, 1921, and Comstock and Huntington, 

 1960, references to Thecla gentilla (misidentified), see under Calystryma atrox.] 



Male (pi. 1 : fig. 11). — Wings above with dull metallic purple ground 

 color, not distinguishable from C. anapa. Wings underneath dark 

 brownish gray and as in the latter species with a small red, marginal 

 ocular marking in interspace Cuij this spot very small, not large as in 

 C. anapa and, as in that species, without such a marking in inter- 

 space M 3 . Red lunule found inward from marginal bluish spot in 

 interspace Cu 2 small and peppered with black. Red absent along 

 inner side of tripartite postmedian line and with marginal white line 

 very faint above vein Ciii. 



Length of forewing 12 — 14 mm. 



Male genitalia as illustrated by figures 8b-e with harpes fused 

 only at base; with aedeagus straight except the extreme distal end 

 which is upcurved slightly and thus somewhat similar to that of 

 C. Mora; gnathal arm distally acute and having a large carina from 

 middle about as in C. Mora and C. meleager; lateral lobe of uncus 

 projected into a small blunt lobe along posterior margin near middle; 

 this lobe not beaklike. Eighth tergite (fig. 8a) cordate in shape, 

 incised along posterior margin, this incision very deep and narrow, 

 distinctly and greatly elongated anteriorly, with posterior lobes 

 blunt and very large and rounded. This tergite thus differs greatly 

 in shape from those of C. anapa, C. naka, and the other species de- 

 scribed above. 



