ARCTIIDAE AND CTENUCHIDAE FORMERLY IN AUTOMOLIS 13 



5 Distal yellow band of forewing sinuous (see PI. 2, fig. 6) . . . tegyra (p. 16) 



- Distal yellow band of forewing straight or nearly so; not sinuous . momyra (p. 15) 



6 Distal yellow band of forewing sinuous ...... gyrata (p. 17) 



- Distal yellow band of forewing straight or nearly so; not sinuous . moma (p. 13) 



7 Forewing with short yellow marking near anal angle extending along Cu lb from 



outer margin see PI. 6, fig. 33) ......... 8 



- Forewing without yellow marking at Cu lb . ....... 9 



8 Outer margin of distal yellow band on forewing weakly concave; yellow marking at 



Cu lb digitate .......... zonana (p. 22) 



- Outer margin of distal yellow band on forewing strongly concave; yellow marking 



triangular (absent in some specimens). ..... dolens (p. 21) 



9 Outer margin of distal yellow band on forewing strongly concave. . dolens (p. 21) 



- Outer margin of distal yellow band on forewing straight or weakly concave . . 10 



10 Veins in brown areas of upper surface of forewing marked with pale brown scales; 



ground-colour of brown areas uniform in coloration . . flavicincta (p. 19) 



- Veins in brown areas of upper surface of forewing unmarked ; ground-colour of brown 



areas darker apically and at base of wing . . . . . . . 1 1 



11 Proximal yellow band on forewing edged distally with dark brown. Dark areas of 



head, thorax and abdomen strongly iridescent dark brown and greenish blue 



griseonitens (p. 24) 



- Proximal yellow band on forewing without dark distal edge. Dark areas of head, 



thorax and abdomen weakly iridescent greyish brown and greenish blue 



ardesiaca (p. 23) 



12 Forewing with brown apical marking as large as or larger than brown tornal spot. 



Apex of valve in<J genitalia not acuminate. Lamella postvaginalis in $ genitalia 

 weakly emarginate ......... superba (p. 17) 



- Forewing without brown apical marking on forewing or with this marking smaller 



than tornal spot. Apex of valve in o" genitalia acuminate. Lamella postvaginalis 



in $ genitalia strongly emarginate ...... salma (p. 18) 



Viviennea moma (Schaus) comb. n. 

 (Text-figs 1, 2; PI. 1, figs 1-5; PI. 2, figs 8-10) 



Automolis moma Schaus, 1905 : 218. Holotype^ 1 , Guyana (USNM) [examined]. 



Automolis moma tenuifascia Rothschild, 1917 : 481. Holotype $, Brazil (BMNH) [examined]. 



[Synonymized by Hampson, 1920 : 175.] 

 Automolis moma Schaus; Strand, 1919 : 21. 

 Automolis moma Schaus; Hampson, 1920 : 175. 

 Automolis moma Schaus; Seitz, 1922 : 373. 

 Rhipha moma (Schaus) Travassos, 1954 : 217. 

 Automolis moma Schaus; Watson, 1971 : 61 [fig. of $ genitalia]. 



<$. Palps, antennae, vertex and side of head dark greyish brown, nearly black; front of head 

 as for vertex but with iridescent blue and green area above labrum. Patagia yellow; tegulae 

 nearly black except for yellow anterior band; rest of thorax nearly black dorsally; ventral 

 surface of thorax brown, less dark than dorsal surface. Front surface of foreleg coxae dark 

 brown and slightly iridescent bluish green, outer surface brilliantly iridescent blue and green; 

 rest of legs as for front of coxa. Some iridescent blue and green scales posterior to tymbal 

 organ. Upper surface of forewing dark greyish brown with two yellow transverse bands and 

 with iridescent blue and green patch at base. Upper surface of hindwing dark greyish brown 

 distally, pale yellow proximally with some dark brown scales in anal area. Under surface 

 of hindwings as upper surface, but paler. Segments 1-3 of abdomen nearly black dorsally; 

 segment 4 either uniformly nearly black dorsally (as in holotype), or black with medial, orange 



