ANGERONA PRUNARIA. 217 
of it. In Angerona prunaria, the abdomen was 
dried up in consequence of the specimen having 
been long preserved, so that it was impossible to 
determine whether the peculiarity extended to the 
internal organization. In a specimen of Melitcca, 
didymus^ however, which admitted of dissection, the 
male organs were found complete and in their usual 
condition, and there was an ovary placed on the 
left side, having no connexion with any other or- 
gan. Another kind of Gynandromorphism is called 
superimposed^ the sexual characters not being dis- 
posed transversely but according to the longitudinal 
axis of the body, whence two combinations result, 
the male parts being anterior, and the female pos- 
terior, or 'Oice versa ; this is of rare occurrence, and 
has been noticed only in a kind of ichneumon. 
Crossed Gynandromorphism, is when each side of 
the body presents at the same time the characters of 
the two sexes. This combination is rare, although 
much less so than the preceding. It has been ob- 
served in a Bomhyx castrensis, in which the left 
antennge and the right wings were female, the right 
antennae and left wings male.* 
* Lacordaire, Intro, a rEntom., vol. ii. p. 434. 
