LEPIDOPTERA HETEROCERA. 132 J 



rotundatae, margine exteriore concavo aut subrecto. Mas. — Anten- 

 nae subpectinatae ; rami aequales, validi. Fcem. — Antennae subser- 

 ratae. 



Phalaena-Bombyx Attacus, p., Cram. ; Gmel. 

 Borabyx, p., Fabr. ; Oliv. 

 Rhescyntis, Hiibn. Verz. Schmett. 156. 

 Aricia, Boisd. ; Herr^Schceff. 

 Arsenura, Duncan, Nat. Library, viii. 



Budy stout. Proboscis visible, as long as the breadth of the 

 head, or shorter. Palpi thick, pilose, porrect, extending a little be- 

 yond the head ; third joint obtuse, very short. Antennae as long as 

 the thorax. Abdomen extending to three-fourths or nearly to the 

 whole breadth of the hind wings. Legs stout, pilose ; hind tibiae 

 with two moderately long or rather short apical spurs. Wings am- 

 ple. Fore wings occasionally falcate, slightly convex in front, 

 rounded at the tips and on the interior angle, oblique and almost 

 straight or concave along the exterior border; second inferior vein 

 more than twice further from the third than from the first. Hind 

 wings a little broader than the fore wings ; exterior border in the 

 male, and occasionally in the female, more or less angular. Male. 

 — Antennae slightly pectinated ; branches equal, stout. Female. — 

 Antennae minutely serrated. 



Eudcemonia Semiramis is nearly allied to this genus. 



A. Alae anticae valde falcatae. - Hippodamia, Cram. 



B. Alae anticae vix falcatae. 



A. Alae fascia albida. 



a. Alarum anticarum fascia angulis duabus apicalibus. 



Erythrinae, Fabr. 

 B. Alarum anticarum fascia angulo uno apicali. 



a. Alarum anticarum fascia angulo rotundata. 



i. Statura robustum. - Hercules, Walk. 



ii. Statura gracilius. 



* Alae fascia nigricante. - - Sylla, Cram. 



** Alae fascia fusca. - Aspasia, Boisd. 



b. Alarum anticarum fascia angulo truncato. 



i. Alarum anticarum fascia postica uon angulata. 



Meander, Walk. 

 ii. Alarum anticarum fascia angulis duobus posticus. 



xanthosis, ft 



B. Alae fascia nulla albida. - - - latifascia, Walk. 



3B 2 



