ARCTIIDAE AND CTENUCHIDAE FORMERLY IN AUTOMOLIS 65 



and in medial frontal patch. Patagia pale yellowish brown, with yellowish white transverse 

 band in middle and at posterior margin. Rest of thorax yellowish white above, white ventrally. 

 Tegulae pale yellow, with pale yellowish brown anteriorly. Legs pale yellowish brown and 

 white. Upper surface of forewing yellow or greyish brown with yellowish white markings ; 

 upper surface of hindwing pale yellow. Under surface of forewing brownish white, darkest 

 apically, with trace of upper surface pattern; under surface of hindwing pale yellow. Under 

 surface of forewing with androconial scale patch in area overlapped by hindwing; this patch 

 covered by hair-pencil. Hindwing has androconial patch in area overlapped by forewing, 

 which probably interacts with forewing hair-pencil. Tymbal organ with 18-20 microtymbals. 

 First abdominal segment yellowish white above; segments 2-6 orange-yellow; 7-8 yellowish 

 brown. Ventral surface of abdomen white. 



9- As <$ except for character mentioned under genus, and on under surface with dark patch 

 before apex of forewing. 



Forewing length: holotype $ 13-5 mm; <$ I5-5-i8-o mm; 9 i7"5-i9*o mm. 



^ genitalia. Juxta with small, posteriorly directed, digitate process medially, and scobinate, 

 lateral extensions. Costal arm of valve simple. Uncus carinate dorsally, hook-like and curved 

 ventrally at apex. Aedeagus without processes; vesica mostly scobinate. 



9 genitalia. Corpus bursae with pair of small, scobinate signa. Ductus bursae short; sclerotized 

 at ostium and in area on right-hand side of ventral surface of ductus. Lamella postvaginalis 

 deeply emarginate medially. Posterior apophyses nearly twice as long as anterior apophyses. 

 Scent tubules simple, extending to just anterior to ostium. 



This species is readily distinguished from canalis by the yellow hindwings, and 

 on the forewing by the presence of yellowish white spots along the veins. The male 

 genitalia are equally distinctive, as is the much smaller number of microtymbals. 

 Known to occur in Guyana, French Guiana, Surinam, Venezuela, Bolivia, Peru 

 and Brazil. 



Material examined. 



Automolis pulverosa Schaus, holotype £, Surinam: Surinam River, 'Geldersland' 



(USNM). 



Venezuela: i (J, Aragua, Rancho Grande, 10-21. xi. 1969 (Duckworth & Dietz) (USNM). 

 Guyana: i <§, 1 9> Bartica District, Kartabo, 21. v. 1922, 1924; 1 9- Bartica. French 

 Guiana: 2 ^, 1 $, Maroni River, St Jean (Le Moult); 1 <J, 'Godebert-Maroni' (Le Moult); 

 1 (J, 1 9 (Bar). Bolivia: i £, Buenavista, 750 m, viii.1906-iv.1907 (Steinbach). Brazil: 3^, 

 1 9. Amazonas, Fonte Boa, v.1906, vi.-vii.1907 (Klages). Peru: 2 <$, Rio Huacamayo, Carabaya, 

 La Union, 2000 ft, xi.1904 (Ockenden). 



Astralarctia canalis (Schaus) comb. n. 



Araeomolis canalis Schaus, 1921 : 166. Holotype^, Panama (USNM) [examined]. 

 Araeomolis canalis Schaus; Watson, 1971 : 19, pis 34d (type), 134c, d (genitalia). 



(J. Palp and antennae pale yellowish brown. Front of head yellowish brown, palest 

 ventrolaterally ; vertex yellowish brown medially, yellowish white posterolaterally. Patagia 

 yellowish white; each with pale centred, yellowish brown patch in middle. Tegulae yellowish 

 brown, with pale yellow transverse band anteriad and yellowish white posterior and lateral 

 fringe. Rest of thorax probably brown dorsally (damaged in only known specimen), pale 

 yellowish brown ventrally. Legs chiefly pale yellowish brown. Tymbal organ with about 70 

 microtymbals. Forewing yellowish brown above, with yellowish white markings, most notice- 

 able of which are the postmedial, interneural dots; under surface as for upper surface but pale 

 markings at base of wing absent. Both surfaces of hindwing greyish brown. First segment 



