172 HETEROCERA. 
7. Adelocephala hogei, n. sp. (Tab. XVI. fig. 9, ¢.) 
Primaries yellowish-brown, speckled with dark brown, crossed by two transverse dark brown lines (the first 
midway between the base and the end of the cell, the second beyond from the apex to the middle of the 
inner margin), the outer margin slightly shaded with pink, two silvery-white spots at the end of the cell 
(the first round, nearest the costal margin, the second triangular) ; secondaries rose-pink, darkest from the 
inner margin to beyond the middle: head, antenne, thorax, and abdomen yellowish-brown ; legs brown. 
Expanse 23 inches. 
Hab. Mexico, Valladolid in Yucatan (Gaumer), Jalapa (Hoge). 
This beautiful species is allied to A. subangulata, Herr.-Schaff., from South 
Brazil. 
SYSSPHINX. 
Syssphinz, Hiibner, Verz. bek. Schmett. p. 143. 
Syssisphinx, Walker, Cat. vi. p. 1503. 
Psephophectes, Grote & Robinson, Trans. Am. Ent. Soe. i. p. 5. 
This genus only contains a single species. The sexes differ greatly, the males to 
some extent resembling certain Sphingide (Smerinthus). 
1. Syssphinx molina. 
Phalena-Bombyx molina, Cram. Pap. Exot. iv. pp. 25, 221, t. 302. figg. EH. F. (9), t. 396. 
fig. B.(¢)?. 
Syssphine molina, Hiibn. Verz. bek. Schmett. p. 1437. 
Syssisphing molina, Walk. Cat. vi. p. 1503 °. 
Psephophectes simulatilis, Grote & Robinson, Trans. Am. Ent. Soc. i. p. 6, t. 1. fig. 1 (4) ‘4. 
Adelocephala grandis, Grote & Robinson, loc. cit. p. 8, t. 1. fig. 7 (2) °. 
Ceroderes molina, Boisd. Ann. Soc. Ent. Belge, xv. p. 84°. 
Hab. Muxico*® (W. H. Edwards); Costa Rica (Van Patten, Gabb, mus. D.) ; 
Panama, Volcan de Chiriqui (Arcé, in mus. D.), Colon (Boucard, mus. D.).—Gutana, 
Surinam !23; Braziu?®; West Inpres, Trinidad. 
This species is found over a very extended range of country. I have a fair series of 
specimens before me showing a considerable amount of variation in colour; the 
examples from Costa Rica are the darkest and agree fairly well with Cramer's figure, 
in which the costal portion of the primaries is far too highly coloured, but in all other 
respects they are identical. The specimens from the State of Panama agree well 
with Psephophectes simulatilis and Adelocephala grandis of Grote & Robinson; I have 
not the slightest doubt that they are sexes and should be referred to Cramer's species, 
an insect that appears to have been quite overlooked by Messrs. Grote & Robinson. 
COLORADIA. 
Coloradia, Blake, Proc. Ent. Soc. Phil. ii. p. 279, t. 7 (1868). 
This genus was described upon a single species (C. pandora, Blake) found at Pike’s 
Peak, Colorado ; we now add two others from Central America. 
