6 PROCEEDmGS OF THE NATIONAL MUSEUM vol. 119 



Signum narrow, dagger shaped, very insignificantly curved; caudal 

 and cephalic extensions of its basis narrow and almost equally long; 

 capitulum somewhat flat. 



Type. — Holotype, female (genitalia on slide 2770), Geronimo, 

 Vera Paz, Guatemala (Champion; Godman and Salvin Collection; 

 66270); BM. 



Remark. — The holotype is the only known specimen of this 

 species. 



Idolatteria mydros, new species 



Plate 3 



Female. — Antenna [only basal third present] black. Labial palpus 

 dark brown, basal segment and inner surface of second segment 

 yellow. Head dark brown; face and marginal cristae yellow. Thorax 

 dark brown with posterior margin orange yellow; most of tegula 

 yellow. Abdomen dark brown. Forewing reddish orange with 

 markings dark brown, iridescent bluish separated by cream-white 

 interspaces, and arranged as follows: nine variously broad streaks 

 on costa, last two of them occasionally connected at tips; a circular, 

 moderately sized apical spot closely touching a larger terminal spot, 

 located below and slightly incised at termen and interiorly; a second 

 terminal, slightly elongate spot, located closer to tornus, and also 

 incised at termen and interiorly; an elongate spot at tornus; a more or 

 less round spot dorsad of last two costal streaks and basad of upper 

 terminal spot, slightly larger than latter; a small spot (on right 

 forewing accompanied by a very minute dot) located above tornal 

 spot; some little, faint dots along external borders of orange area; 

 cilia cream white, in front of terminal spots and around tornus black. 

 Length of forewing 11 mm. Hindwing red orange with black spots: 

 a preapical spot on costa, an apical spot and six marginal spots along 

 termen and tornus; an obscure spot almost midway between dis- 

 cocellulars and termen; cilia grayish black. 



Male. — Unknown. 



Female genitalia. — Sinus vaginalis flatly infundibular, narrowed 

 at ostium bursae; lamella antevaginalis narrow, with lateral portions 

 inclined mediad and medial portion forming a short arch, bent cepha- 

 lad. Antrum short, joined to a narrower, almost cylindrical portion 

 of ductus bursae bearing two lateral colliculi. Signum curved, 

 dagger shaped; caudal and cephahc extensions of its basis strongly 

 thickened, almost equally long and broad; capitulum not separated, 

 forming highest point of basis of signum. 



Type. — Holotype, female (genitaUa on slide 1-Obr., Jan. 22, 1961), 

 Loja vicinity, Ecuador, 1887; USNM 67735. 



Remarks.— Somewhat similar to simulatrix Walsingham, but with 



