24 ENTOMOLOGICAL NEWS. [Jan., '13 



nitocris, polaris and alberta. Cybele is included because in 

 some parts of its range the female is sometimes white or cream 

 color but ordinarily the sexes are marked alike. There are 

 no striking examples in Melitaca except that in palla there 

 is a melanic female, as well as the tawny female. In Synchloe 

 adjutri.v there are two kinds of males and two kinds of fe- 

 males, which were formerly known as different species. 



There are several good examples in the Satyridae. Debis 

 creola has a number of velvety patches on the fore-wing in 

 the male. Both sexes of Coenonympha haydeni were original- 

 ly described from males, but there are marked differences in 

 color between the sexes, so that they may be distinguished at 

 a glance. Satyrus gabbi is another Satyrid showing sexual 

 dimorphism. 



Thecla laeta is the most marked instance in its genus. In 

 Lycaena there are a number of species .... heteronia, 

 clara, fulla, pheres, antiacis, saepiolus, battoides, podarce, scud- 

 deri, acmon, pseudargiolus, comyntas, isola, and others to a 

 lesser degree. L. acmon is antigenetic, and a very closely re- 

 lated species neurona is not. Until recently the two species 

 have been confused. Which orte has the advantage over the 

 other? The females of neurona are alike in appearance, be- 

 ing dark brown. In the genus Chrysophanus we have hel- 

 loides, rubidns, sirius, arota, thoe, mariposa and zeroe, all show- 

 ing antigeny. 



In the Pieridae are a number of examples, including Lep- 

 talis melite, Neopha\sia terlooti, menapia, Pieris neumoegeni, 

 amaryllis, monuste (often has a melanic female), Anthocharis 

 genutia, Catopsilia spp. (which often have white females), Me- 

 ganostoma caesonia, eurydice. Colias also shows antigeny in 

 many species. Christina has a yellow and a white female and C. 

 bchri is also a good example of diversity. Perhaps the best 

 example in Terias is mex'icana. 



In Papilio are turnus, polyxenes, troilus and philenor. 



Most of the Hesperidae are distinctly antigenetic, the males 

 being of a bright color and also have a distinct stigma, brand 

 or sex mark. Pamphila zabulon has the female dark brown and 



