OP GENERATION. 315 



sence of the right ovarium. Described by Germar, and caught near 

 Dresden "". 



Vanessa Antiopa. Right male, left female, the right antennae con- 

 siderably the shortest ; abdomen as in the preceding. Bred from the 

 caterpillar at Halle, and described by Germar t. 



Deilephila Euphorbia, O. Left male, with smaller wings, right 

 female ; body distinctly divided in the centre, left green, as in the 

 male, right reddish ; palpi and legs white ; abdomen female. Described 

 by Germar J. 



Saturnia Pyri. Right male, left female ; abdomen more elegant 

 than in the female, at its end, the organs of both sexes quite perfect, and 

 distinctly close together. Ochsenheimer. 



Saturnia Carpini. Left male, right female; abdomen female, with 

 merely female organs. Ochsenheimer. Another instance in the Royal 

 Museum at Berlin : smaller than usual, right antenna? and wings 

 female, left male ; body of the form of the male, but coloured like the 

 female ; a distinct separation not observable. Rudolphi, as above. 



Endromis versicolora. Right male, left female ; abdomen female, 

 but upon the right side coloured as in the male. Ochs. 



Liparis dispar. Right male, left female; back with a distinct central 

 line of separation ; abdomen smaller than in the female, but with female 

 anal tufts and male organs. Rudolphi. Ochsenheimer describes a 

 second instance, but the left side was male, the right female ; abdomen 

 smaller, particularly thinner than in the female, with large anal tufts. 



Harpya vinula, O. Right male, left and the abdomen female ; both 

 sexual organs. Ochsenheimer. 



Gastropliaga querdfolia. Left male, right female ; distinct line of 

 separation throughout the whole body, both sexual organs. Upon its 

 anatomical inspection an ovarium was found upon its right side, the 

 oviduct of which opened into the vasa deferentia about two inches before 

 its termination, and that of the spermatheca, which hung attached to 

 the common evacuating duct. Upon the left side there were two testes 

 behind each other, which were connected by a thin vessel, one spermatic 

 duct passed from the second testicle, and immediately received, as in- 

 all the Lepidoptera, the spiral vessel ; further beyond, on the opposite 

 side, was found a second vessel, which opened into it, probably the 



* Medici's Arc hi v. fur Physiologic. 11119, torn. v. p. 365 8. 



f Ibid. I Ahrcu's Fauna Insect. Europ., fast, i. Pl.X.X, 



