488 PROCEEDINGS OF THE NATIONAL MUSEUM vol. i08 



Tatochila microdice (Blanchard) 



For references, see below under T. microdice microdice. 



This species is divided into four subspecies. The most northern of 

 these is found in Ecuador and southern Colombia and the most 

 southern and probably most distinct is found only on the southern 

 coast of the Island of Tierra del Fuego. 



Venation: As illustrated (fig. 59). There is no difference displayed 

 between the various subspecies. 



Legs: With paronychium, claw, and pulvillus as illustrated (fig. 

 74). These structures exhibit no subspecific characters. 



Male genitalia: As illustrated (figs. 31-31h, 45). Certain figures 

 of T. microdice microdice (figs. 3 1-3 lb), T. microdice arctodice (figs. 

 31c, 31h), and T. microdice macrodice (fig. 31g) are included to show 

 individual variation in the aedeagus. Even though they belong some- 

 times to different subspecies, the differences displayed are not sub- 

 specific. Figure 31 shows perhaps the average for the whole species. 

 In figure 31a the base of the aedeagus is deeply indented ventrally, a 

 character occurring in 3 out of 11 specimens of T. microdice microdice, 

 in 5 out of 13 specimens of T. m. macrodice, and in 3 out of 8 speci- 

 mens of T. m. arctodice. Figure 31b shows an aedeagus with the base 

 nearly flat, while figures 31, 31d-f illustrate variation in the harpes. 

 Again, these are only individual variations and all types usually are 

 found in all four subspecies. The genitalia of 38 males were studied. 



Female genitalia: As illustrated (fig. 87), with the anterior lobe 

 of the inner genital plate subtriangular, having its posterior margin 

 strongly toothed and gradually rounded to the ventral margin. 

 Ductus bursae with one or sometimes two very narrow ribbonlike 

 plates opposite opening of ductus seminalis, w^ith the plate anterior 

 to this large and subtriangular or sometimes completely ringing the 

 ductus bursae and fused dorsally; usually with two irregular narrow 

 plates anterior to this. No subspecific characters were found in the 

 female genitalia. The genitalia of 22 females were studied. 



Tatochila microdice microdice (Blanchard) 



Pieris microdice Blanchard, in Gay, Historia ffsica y polftica de Chile, Zoologia, 

 vol. 7, p. 14, 1852. — Kirbj'^, A synonymic catalogue of diurnal Lepidoptera, 

 p. 451, 1871.— Berg, Bull. Soc. Imp. Nat. Moscou (for 1875), p. 196, 1876.— 

 Burmeister, Description physique de la Republique Argentine . . . , vol. 5, 

 pt. 1, pp. 89, 90, 1878. — Berg, Act. Acad. Nac. Cienc. C6rdoba, Argentine 

 Rep., vol. 1, pp. 66, 67, 1875. 



Tatochila microdice (Blanchard), Butler, Proc. Zool. Soc. London (1872), p. 67, 

 Jan. 16, 1872.— Reed, Anal. Univ. Chile, vol. 51, p. 669, September 1877.— 

 Bartlett-Calvert, Rev. Chilena Hist. Nat., vol. 2, p. 98, July 1898.— Rober, 

 in Seitz, Die Gross-Schmetterlinge der Erde, vol. 5, p. 56, May 25, 1908. — 

 Giacomelli, Anal. Mas. Nac. Hist. Nat. Buenos Aires, vol. 26, pp. 406, 412, 

 413, Mar. 10, 1915, Rev. Chilena Hist. Nat., vol. 20, pp. 44, 45, 53-54, 57, 



