NORTH ABIKRICAN LEPIDOPTERA. 221 



spects agreed with Driiry's figure and description. Later Mr. Hulst 

 obtained from normal % and 9 ^ brood of over thirty imagines. 

 About half of these were of the normal form. Of the remainder 

 one, a male, was a perfect specimen of the variety Janialcensis, and 

 the rest filled every gradation between it and the type form. One 

 specimen had but one or two blue scales to represent the second ocel- 

 lus. In every case it was the inner ocellus which showed a tendency 

 to be lost. The outer one seemed nearly constant, except in position. 

 As the inner one faded the outer one approached a little the centre 

 of the black s])ace, which became at the same time less elongate. 

 Mr. Hulst also speaks of a female in which a few scales represent a 

 a tJiird ocellus. Clemens also says that the spot may have two or 

 three blue pupils. This form Mr. Grote has named tripartita^ in his 

 most recent opus, basing his action upon information obtained in 

 Prof Fernald's pa{)er, as in the creation of the subgenus Coplsme- 

 rinthus. 



The terms jumalcemls and ocellatus both have priority of gemlnatus. 

 The latter is a synonym of the former. Jamaleensls, however, is not 

 only a misnomer, but is inexpressive and absolutely misleading, 

 whereas gemlnatus well expresses one of the most marked superficial 

 features of the species, and refers also to the true stem form. I have, 

 therefore, retained Say's name, following in this all prior writers on 

 the group. 



The genitalia of the male emphasize the other differences. The 

 side piece is very broad at base, furnished inferiorly with a rather 

 stout, somewhat beak-like, obtusely rounded tip. It suddenly nar- 

 rows at this point from the declivity giving ofi^ another shorter, but 

 rather more pointed spur, and finally from the upper margin near 

 tip giving off a spatulated beak with rounded tip. 



The larva has been mentioned, and more or less completely de- 

 scribed by a number of authors. 



S. oplithaliniviiiii Bd., Ann. Soc. Ent. Fr. iii. 3d ser. 32, Smerinthns ; Lep. 



Cal. Ann. Soc. Belg. xii. 67, Smerinthus ; Clem., Journ. Ac. N. Sci. Phil. iv. 



1859, 184, Smerinthns; Morr., Syn. 1862, 211, Smerinthus; G. & E., Pr. E. Soc. 



Phil. V. 160, Smerinthns : Lint. Ent. <]ont. ii. 125, Smerinthns; Grt., Buff. 



Bull. i. 23, Smerinthns ; Bd., Sp. Gen. Het. i. 31, jil. i, fig. 1, larva; Strk., Lep. 



Rhop. et Het. i. 58, pi. vii, fig. 5 9 • Smerinthus ; Edw.,* Pr. Cal. Ac. Sci. vi. 



91 ; id. vii. 21 ; Butl., Tr. Zool. Soc. Lond. ix. 592, Smerinthus. 

 Var. pallidulus Hy. Edw.,* Pr. Cal. Ac. Sci. vi. 91 ; Strk., Lep. Ehop. et Het. 



58, pi. vii. fig. 4 ^ ; Grt., Buff. Bull. iii. 223. 

 Var. vancouverensis Butl., Tr. Zool. Soc. Lond. i.x. 593, Smerinthus. 



