CERTAIN BUTTERFLY GENERA — FIELD 109 



usually absent, sometimes faintly indicated; anellus without a dorsal 

 plate; aedeagus in lateral view not distinctly broader distally than 

 tlu-ough middle or much less than twice as wide as in middle. 



Female (fig. 35) with ductus bursae as long as bursa copulatrix 

 (excluding the accessory pouch); usually with a ribbon-like plate 

 immediately anterior to ostium and usually with a separate sub- 

 triangular or crescentic shaped plate on ventral surface anterior to 

 this. Sometimes this plate completely rings the ductus bursae and 

 sometimes it is fused to the ribbon-like plate. Ductus seminalis 

 attached dorsally to nonsclerotized area opposite the area between 

 these two plates; remainder of ductus bursae nonsclerotized. An 

 exception to the above types of bursae is that found in T. xanthodice 

 which has that structure entirely nonsclerotized. Eighth tergite 

 entire and semiannulate; eighth sternite with outer genital plate 

 large and reticulate; inner genital plate entirely setulose on outer 

 surface, divided into a posterior finger-like lobe and an anterior 

 subtriangular lobe, these lobes not parallel but distinctlj^ farther 

 apart near their base than at apex. 



Habitus: Discocellular spot present on forewing and very distinct 

 at least on upper surfaces. Wings below with veins outlined with 

 fuscous or black, at least in the female, or around outer margin of 

 hindwing and on apex of forewing in the male, usually extending along 

 entire length of veins in hindwing. Ground color of hindwing and 

 apex of forewing below in both sexes usually yellow or at least with some 

 yellow either in base of hindwing or around outer margin of hindwing 

 and apex of forewing. Usually with at least one orange spot in base 

 of hindwing and with an orange streak along costal margin of this 

 wing. Ground color of wings above white, cream or yellow with 

 the silvery sheen restricted to the base. 



Species: 



1. Tatochila iheodice (Boisduval), Voyage de d^couvertes de V Astrolabe, pt. 1, 



L6pidopt6res, p. 51, 1832 {Pieris). 



2. Tatochila autodice (Hiibner), Zutrage zur Sammlung exotischer Schmetter- 



linge . . . vol. 1, p. 26, 1818; pi. 27, figs. 151, 152, [1814-1818] {Synchloe). 



3. Tatochila blanchardii Butler, Trans. Ent. Soc. London, pp. 472-473, ISSl. 



4. Tatochila microdice (Blanchard), in Gay, Historia ffsica y Polftica de Chile, 



Zoologia, vol. 7, p. 14, 1852 (Pieris). 



5. Tatochila vanvolxemii (Capronnier), Ann. Soc. Ent. Belgique, vol. 17, p. 11, 



pi. 1, fig. 1, 1874 (Pieris). 



6. Tatochila mercedis (Eschscholtz), in Kotzebue, Entdeckungs-Reise in die 



Siid-See und nach dor Berings-Strasee . . . vol. 3, p. 215, pi. 9, fig. 22a, 

 1821 (Pontia). 



7. Tatochila inversa Hayw.ard, Acta Zool. Lilloana, Inst. "Miguel Lillo," vol. 7, 



pp. 136-137, 1949. 



8. Tat(chila orthodice (Weymer), in Weyiuer & Maasscn, in Stubel and Reiss, 



Reisen in Svid-Anierika . . . Lepidopteren . . . , pp. 99, 124, pi. 3, fig. 20, 

 1890 (Pieris). 



