180 



LBPIDOPTEKA (MOTHS). 



The Hepialidae suffer from a fungoid disease caused by a 

 curious form called Qordycsps entomorhiza, which grows out of 



CORDYCEPS ENTOMORHIZA (a fUBf^S Oil HcpialUS laVVSe). 



a, Fruit ; b, mycelium. 



the cater23illar, after having invaded it internally and killed it 

 (tig. 82). 



Bombycina. — The " bomhyces " are mostly clumsy, heavy- 

 bodied moths, with a very hairy covermg to their abdomen and 

 thorax. The antennae in the male are pectinated. The wings 

 are broad and tectiform when at rest. The females are generally 

 larger than the males ; some are wingless, as in the Vapom'er 

 Moth (Onji/ia antiqua). The larvae are usually very hairy, and 

 many spin a light cocoon in wliich they pupate. The pupse are 

 never found underground. The larvEB of some species are 

 gregarious, spinning large tents of silk under which they live 

 (Lackey Moth) ; others — the Psi/chichv — form cases of foreign 

 objects in which to live. There are several very injurious 

 species in this division, but it also includes the valuable 



