BUTTERFLIES — HERRERA AND FIELD 501 



Distribution: Chile from the Province of Atacama south into the 

 Province of Llanqiiihue and east into the extreme western part of the 

 Territory of Kio Negro in Argentina, 



Chile: Province of Aiacayna, Copiap6: Province of Coquimho, Viciifia (Febru- 

 ary); Province of Valparaiso, La Campana (March), Quillota (March), Valparaiso 

 (March), Papudo (January); Province of Santiago, La Florida (April), San Cris- 

 t6bal (March), Penalolen (February, March), Criaclas (October), Macul (Feb- 

 ruary-April), Lo Ovalle (November), Romeral (December), Canelo (October), 

 Santiago (February), El Volcdn; Province of Concepcidn, Talcahuano; Province of 

 Malleco, Angel (March), Victoria; Province of Cardii , Temuco (February); Prov- 

 ince of Llanquihue, Frutillar (February). Argentina: Territory of Rio Negro, 

 Bariloche (November). 



Food plants: Brassica campestris L. and Raphanus sativus L. 

 Material studied: 29 males, 21 females. 



Group D. The Orthodice Group 



In this group the aedeagus (in lateral view) is gradually arched 

 and usually much narrower just before the middle than at the distal 

 end. The distal end of the aedeagus is entirely excised on its right 

 side and deeply incised on its left side. There is a small tooth above 

 this incision and frequentl}^ one below it. 



Hindwitigs above with marginal wedge-shaped markings absent, 

 although the vems are sometimes black along the outer margin; with- 

 out a submarginal row of sagittate markings, or if present, greatly 

 reduced. Hindwing below with ground color yellow and with sub- 

 marginal series of sagittate markings usually absent or, if present, 

 very faintly represented. The orange streaks through middle of the 

 interspaces are either present or absent. Usually the white spot on 

 lower discocellular vein is absent, if present the white is confined to 

 the vein. 



This group contains five species. 



Tatochila inversa Hay ward 



Tatochila inversa Hay ward. Act. Zool. Lilloana Inst. "Miguel Lillo," vol. 7, 

 pp. 136, 137, 1949; vol. 9, p. 94, Oct. 25, 1951. 



Venation: As illustrated (fig. 62). 



Legs: With paronychium, claw, and pulvillus as illustrated (fig. 73). 



Male: Plate 6, figure 19. Head with outer surfaces of palpi wliite. 

 Scales behind eyes orange. Wings with dark markings dark brown 

 to black, ground color on uppers urf aces and on disc and base of fore- 

 wing below white, ground color of hindwing below and of apex of 

 forewing below yellow with costal margin and extreme base of hind- 

 wing orange and with veins silvery white outlined heavily with gray. 

 Lower discocellular vein white. This species is similar to homoeodice 

 and orthodice in lacking the black scaling on veins of upper surface 



