64 



BULLETIN" 351, U. S. DEPARTMENT OF AGRICULTURE. 



bird, (Jhilocorus ~bivulnerus" The writer has occasionally taken the 

 adults of this species, which is scarce about Mont Alto, Pa. ; upon 

 trees infested with the terrapin scale, but has never observed either 



it or its larvae preying upon this scale. 



At Mont Alto, Pa., there was, in 1912 and 

 1913, a heavy and effective attack by Hy- 

 peraspis binotata Say. This ladybird was 

 V taken abundantly in the orchard of D. M. 



Wertz in 1912 and was very abundant there 

 and in adjacent orchards during the follow- 

 ing year. It was also taken in considerable 

 numbers during 1913 at the Newcomer or- 

 chard near Midvale, Pa. This ladybird 

 worked so effectively at Mont Alto, Pa., as 

 nearly to exterminate a very severe infesta- 

 tion. H. binotata (fig. 17) differs somewhat 

 from the common species of ladybirds, both 

 in its habits and life history. The adult beetles hibernate under bark 

 and in rubbish and become active in early spring. They feed upon 



Fig. 17. — Apredaceous enemy of 

 the terrapin scale, Hyperaspis 

 binotata. Much enlarged. 

 (Original.) 



Fig. 18.— Eggs and a second-instar larva of Hyperaspis binotata as it appears under a displaced scale: a, 

 Second instar as disclosed by displacing the host; b, larvse of the terrapin scale; c, a displaced scale; 

 d, eggs of the predatory beetle Hyperaspis binotata in situ; e, egg, highly magnified. All much enlarged. 

 (Original.) ^ 



honey dew and upon aphides during the early part of the season but 

 are unable to attack the lecanium in the spring because of its hard 

 derm. They feed upon it readily when the derm is crushed. 



