AMERICAN LEPIDOPTERA. 331 



4. Ctenucha rubroscapsus. 



Glaucopis rubroscapsus, Menetries, En. Cor. An. Mus. Pet., p. 142, Plate 14, 

 fig. 7. (1855). 

 %. Head crimson on the vertex, occiput and between the eyes; 

 front black. Labial palpi entirely crimson, except the short terminal 

 article, which is black. Antennae, long, black, closely bipectinate. 

 Prothorax above, black, behind the head, crimson. Tegnlae largely 

 crimson ; at the sides, outwardly, these are narrowly and evenly bor- 

 dered with black, and fringed with longer hair-like scales. Abdomen 

 brilliant cyaneous, changing to greenish, anal hairs black. Legs black, 

 anterior coxae whitish ; middle femora spotted with white above the ti- 

 bial joint. Anterior wings brownish-black above, much as in C. vir- 

 ginica; the costal edge is entirely and markedly white from base to 

 apices, the latter fringed with white, as in C. ochroscapsus. Fringes 

 black, except before internal angle, where they are prominently white. 

 Secondaries bluish-black, much as in C. virginica; the fringes are 

 white at apices and before anal angle^ elsewhere black. Under surface 

 re>»embling upper. 



Expanse, 46 m. m. Lrncjtli ofhoih/, IG m. m. 



Habitat. — California. S , Man. Bcrol. 



Differing from C. ochroscapsus, merely in coloration, the present 

 species is readily distinguished by the crimson caputal and thoracic or- 

 namentation, and by the white costal edge of the primaries. 



GNOPHAELA, Wan;er. 

 1. Gnophaela aequinoctialis. 



Diojitis {Gnophaela) aequinoctialis, Walker, C. B. M. Lep. Ilet. Pt. II, p. .3.SI. 



(1854). 



Hahitat. — South America. (Venezuela!) 



% 9 . Coll. Mus. Brit, et BeroL! 



Mr. Walker proposes the nanie Gnophaela to designate a group of 

 the genus Dioptis and to contain G. aequinoctialis. This latter spe- 

 cies, however, together with the two following, presents but a superfi- 

 cial resemblance to the typical species of fliibiier's genus (D. rica, &e.) 

 in its alar ornamentation, and is structurally very amply distinct. Al- 

 though proposed by its Author to designate a group and not a genus 

 Gnophaela should nevertheless be retained in its present signification 

 instead of the ecjuivalent but later term Callalmla^ in accordance with 

 custom and the law of priority in scientific nomenclature. ' 



This is a structurally stout genus standing higher than the weak 

 winged species of Dioptis, Il'dbn. with their powdery squamation. 



