180 A. R. Grote's Notes on the Zyjxnidse of Cuba. 



terlinge," giving as the locality for his II. Pretus, the West Indian Is- 

 land of St. Thomas; a habitat also given by Cramer for his figure F, 

 which latter differs from the figure E, by its paler color, Cramer sta- 

 ting it to be the male of the species. Hubner does not verify this sex- 

 ual difference in his figures, which I believe to represent the same spe- 

 cies as that intended by Cramer ; it thus eventuates that either Cramer's 

 figure " F" is an accidental variety, or not the true £ of his first figure 

 " E," which latter sufficiently corresponds with the figures of both sex- 

 es of Horama Pretus, Hiibner. Following out my reference of the 

 species cited by Mr. Walker under the genera "Glaucopis" and "JE'm- 

 chromia," as affording types of many distinct genera, it is necessary to 

 fix those erected by Hubner, and which have been neglected by sub- 

 sequent lepidopterists, I think to the detriment of the proper compre- 

 hension of the structural peculiarities of these very interesting insects. 

 In selecting, from the present Collection, those genera which most pal- 

 pably copy the ^Egeriidaa, to inaugurate the typical sub-family, Zygje- 

 ninas, the choice of the genus Horama, seems compulsory. 



Phylloecia, Guerin * may be assumed as a synonym of this genus, 

 since the diagnosis sufficiently corresponds and, moreover, Horama pre- 

 tus, Hiibner, is referred as belonging to the new genus. Nevertheless 

 the name proposed by Gruerin may be used for this Author's P. punc- 

 tata, should this species be found generically distinct from the species 

 of Horama. Mastigocera, IIarris,f is evidently identical with the pre- 

 sent genus, and is based upon Horama vespina (Mastigocera vespina, 

 Harris), apparently a parallel species with H. pretus, and from the 

 same locality — St. Thomas, W. I. 



The antennas are inflated beyond their middle, being compressedly 

 widened, thence tapering to their tips; the articulations are provided 

 with setal hairs and are very distinct, owing to the thickening of the 

 anterior margin of each antennal joint. Labial palpi, pressed against 

 the front, exceeding slightly the clypeus. Maxillae, well developed. 

 Wings, long and narrow; secondaries, reduced. Legs, well developed; 

 anterior tibiae provided with a row of spiuules on their under surface ; 

 posterior tibiae, at their terminal extremity, and posterior tarsi, clothed 

 with lateral compressed scales, which give these parts a flattened ap- 

 pearance. Abdomen, cylindrical, tapering; the lateral pouches on the 



* Ieonographie du Regne Animal de G. Cuvier, etc., par M. E. F. Guerin Me- 

 neville, 1829—1838. Insects, p. 504. 



f Catalogue of North American Sphinges, Silliman's Journal, Vol. 36, 1839, 

 p. 315. 



