24 A. WATSON 



Forewing length: lectotype $ 20-5 mm; £ 19-0— 21-0 mm; $ 22-o-25-o mm. 



<J genitalia. Uncus not dilated apically, lateral carinae weak, medial carina absent or 

 obsolescent; apex of valve with hook-shaped process. 



^ genitalia. Lamella postvaginalis broadly V-shaped, with small medial emargination; 

 ductus bursae sclerotized at ostium only; accessory sac of corpus bursae smaller than latter; 

 posterior margin of 7th sternite evenly concave, slightly asymmetric (see fig.). 



Distinguished from the similarly patterned griseonitens by the paler yellow 

 coloration; the less strongly iridescent colour of the head, thorax and abdomen, 

 and by the lack of a dark distal edge to the basal yellow fascia. The male and 

 female genitalia are also diagnostic. 



As indicated above there is a striking dimorphism in the colour-pattern of the 

 material from Venezuela in which 14 of the 40 examples lack the apical yellow 

 fascia on the forewing (e.g. the type of schistaceus) . There also appears to be some 

 geographically related variation between Costa Rican specimens and those from 

 South America: the former have much broader yellow fasciae on both fore- and 

 hindwings. 



The type of Aiitomolis schistacea ab. subapicalis Rothschild (1935 : 240) is a 

 Venezuelan specimen of ardesiaca with the apical yellow band present on the fore- 

 wing. 



The known range of this species includes Costa Rica, and the three most north- 

 westerly South American countries: Colombia, Venezuela and Ecuador. 



Material examined. 



Automolis ardesiaca Rothschild, lectotype £, Costa Rica: Tuis (BMNH). Auto- 

 molis schistaceus Rothschild, lectotype <$, Venezuela: San Esteban, vi.1909 (Klages) 

 (BMNH). 



Costa Rica: i <J (USNM) ; 1 $, Turrialba, 24.vii.1963 (Scullen, Bolinger) (USNM) ; 1 <J, 

 Tuis (paralectotype of ardesiaca) ; 1 §, Tuis (USNM) ; 5 £, Sitio, ii, vi (USNM : 1 $) ; 3 $, Orosi, 

 1200 m (Fassl); 3 <J, 1 $, Juan Vinas, 3500 ft, vi (Schaus) (USNM: 2 <J, 1 $). Colombia: i <J, 

 1 $, Upper Rio Negro, 800 m (Fassl) (USNM :i ^); 1 <J, Bogota ; 1 <$, Villavicencio, 400 m 

 (Fassl). Venezuela: i §, 1901 (Pouillon) (USNM); 6 <£, 1 $, Esteban Valley, Las Quiguas, 

 iii-xi, 1909-1910 (Klages and others) (CM : 1 £; USNM: 1 Q-) (including paralectotypes of 

 schistaceous) ; 2 g, Tachira, Pregonero, 20. ix. 1966 (Rosales, Salcedo) (UCV); 2 g, Lara, Cabudare, 

 Terepaima, 1270m, 1-4. xi. 1956 (Fernandez Ye'pez, Rosales) (UCV); 1 $, Carabobo, Rio 

 Borburata, 250m, 18-23. i. 1972 (Fernandez Ye'pez, Salcedo) (UCV); 1 £, Distrito Federal, 

 Macizo Naiguata (Fernandez Yepez, Lichy) (UCV); 14 $, 2 $, Aragua, Rancho Grande, 1100 m, 

 I4.i-u.xi.i948-i967 (Fernandez Yipez, Gonzales, Perez, Romirez, Rosales, Salcedo, Duckworth, 

 Poole, Dietz) (UCV, USNM); 1 $, Miranda, Guatopo, 420m, 27.iii.1964 (Fernandez Yepez, 

 Rosales) (UCV). Ecuador: 2 $, Prov. los Rios, La Chiina, i-v.1893 (de Mathan). 



Viviennea griseonitens (Rothschild) comb, n., stat. rev. 



(PI. 7, figs 43-47) 



Automolis griseonitens Rothschild, 1910a : 45, pi. 6, fig. 27. LECTOTYPE <$, Peru (BMNH), 



here designated [examined]. 

 Automolis angulosa griseonitens Rothschild; Seitz, 1922 : 373. 



