INSECTS' EGGS 143 



eggs singly, but some, like the common Cockroach 

 or house " Black-beetle, "produce a symmetrically- 

 marked horny capsule which contains the eggs. 

 This can frequently be seen by those who are 

 unfortunate enough to dwell in cockroach-haunted 



Fig. 91. The quill of a pheasant's feather with 

 parasites' eggs attached 



places, as the insect carries it about, searching for 

 a suitable situation in which to place it for the 

 young cockroaches to emerge. 



A chapter on the subject of insects' eggs would 

 be very incomplete without including some 

 examples from the Lepidoptcra, or butterflies and 



