THE ENTOMOLOGIST. 



Vol. XVIL] APEIL, 1884. [No. 251. 



SATURNIA CARPINI. 



Saturnia caepini. 



In the beginning of the year 1882 I received a lew cocoons 

 of Saturnia carpini, which all produced imagines in due course, 

 excepting one, which I opened some time after to ascertain the 

 cause, and was somewhat surprised by finding two male pupse 

 enclosed in it, lying side by side. From one the moth had 

 emerged, but instead of making its exit through the usual 

 aperture in the cocoon, it had somehow managed to turn round 

 and make its way to the opposite end, where it was fixed and 

 dead ; its wings, however, were somewhat developed. Upon 

 referring to the above woodcut the details of this unusual 

 incident may be more clearly understood : at the two ends may 

 be seen the skins of the respective larvse, which is the more 

 remarkable as both pupse have their heads in one direction. 

 Probably the skin at the aperture was the cause of the moth 

 being unable to escape. It would have been interesting had the 

 way in which the larvse spun up been noted. 



Fred. W. Frohawk. 

 Upper Norwood, S.E., March 24, 1884. 



ENTOM. — APRIL, 1884. L 



