December, '19] 



WELLHOUSE: HAWTHORN' I.ACE BUG 



443 



from the egg still enclosed in the embryonic membranous sac. When 

 about half way out of the egg shell the nymph sphts the membranous 

 sac and slips it off over the head, leaving it with the egg cap on the outer 

 end hanging out from the empty egg shell. 



mw/nwrm 



8 



4 -^^^/juulu^^ 



Fig. 24. — 1, Adult Coryihucha belhtla Gib.; 2, lateral view of hood and carina; 

 3, tip of abdomen, ovipositor at rest; 4, same, ovipositor exserted, chitinized tendons 

 within body shown by dotted lines; 5, ovipositor; 6, tip of abdomen of nuile, claspers 

 at rest; 7, .same, claspers exserted; 8, eggs in position among liairs in axil of voitis. 



Nymphs. — After emerging and drying the nymphs begin feeding at 

 once in colonies near the egg shells. They molt five times, feeding 

 from three to six days between molts, the earlier stages requiring three 

 or four days while the later ones require five or six days. In molting 

 the cuticula breaks along the median dorsal line from the front of the 

 head to about the second abdominal segment. The in.sect on emerging 

 is limp and almost colorless except the eye facets which are brigiit red. 

 The bodv color soon darkens and the eves a few hom-^ l.tt(>r become 



