SERICOPTERA .—NEPHELOLEUCA. 9 
Fam. GEOMETRIDE. | 
Subfam. URAPTERYGINA.. 
SERICOPTERA. 
Sericoptera, Herrich-Schiffer, Samml. aussereur. Schmett. pp. 27, 40, no. 39 (1853). 
Ripula, Guenée, Sp. gén. des Lép. ix. p. 34 (1857); Butler, Journ. Linn. Soc., Zool. xvii. p. 200, 
t. 9. ff. 17, 18 (neuration ¢) (1884). 
1. Sericoptera mahometaria. 
Sericoptera mahometaria, Herr.-Schaff. Samml. aussereur. Schmett. pp. 40, 78, ff. 69, 70°; Corr.- 
Blatt zool.-min. Ver. Regensb. 1870, sep. copy, p. 47°. 
Ripula mahometaria, Guen. Sp. gén. des Lép. ix. p. 34°; Walk. Cat. xx. p. 13*; Snell. Tijdschr. 
voor Ent. xvii. p. 11°; Butl. Journ. Linn. Soc., Zool. xvii. p. 200°; Reiss & Stiibel, Reisen in 
Sud-Amerika, p. 577. 
Ripula mexicaria, Guen. Sp. gén. des Lép. ix. p. 85°; Walk. Cat. xx. p. 14°. 
Hab. Mexico 4&8 9, Oaxaca (Sallé, in Mus. Brit.*), Tuxpan (coll. Schaus), Coatepec 
(Schaus, Brooks), Jalapa (Hoge); Guatemata, in the city (Rodriguez), Duefias, San 
Isidro 1600 feet (Champion); Panama, Chiriqui (Ribbe, mus. Staudinger), Volcan de 
Chiriqui 2000 to 3000 feet (Champion). — CotomBia®, Frontino; VENEZUELA!?; 
Ecuapor’?; Boriviat ®; Sourn-East BraziL, Rio Janeiro; CuBaA?. 
This species varies considerably in size and colour, and also in the distinctness of the 
markings. It is possible that S. mahometaria may be inseparable from Phalena area, 
Cram.; but Cramer’s figure is so unlike any of the specimens before me that I prefer 
using Herr.-Schiaffer’s name, instead of sinking it as a synonym as Moschler has done 
(Verh. zool.-bot. Ges. Wien, 1881, p. 394). 
NEPHELOLEUCA. 
Nepheloleuca, Butler, Journ. Linn. Soc., Zool. xvii. pp. 197, 201, t. 9. ff. 11, 12 (meuration) (1883). 
Butler based this genus upon Phalena politia, Cram., a species that had been placed 
in Urapteryx by Leach, Guenée, Snellen, and others, but from which it differs consider- 
ably in form and neuration. A second species is now added from our region. 
1. Nepheloleuca politia. 
Phalena politia, Cram. Pap. Exot. ii. p. 65, t. 189. f. E’. 
Phalena Geomeira politata, Fabr. Sp. Ins. ii. p. 253°, 
Eulepidotis politaria, Hiibn. Verz. bek. Schmett. p. 291°. 
Ourapteryx politata, Leach, Zool. Misc. i. p. 80, t. 35. f. 1°. 
Urapteryx politiata, Herr.-Schiff. Corr.-Blatt zool.-min. Ver. Regensb. 1870, sep. copy, p. 49°; 
Guen. Sp. gén. des Lép. ix. p. 30°. 
BIOL. CENTR.-AMER., Heter., Vol. II, November 1891. 6C 
