Feb., 1913 Bulletin of the Brooklyn Entomological Society 41 



Duv. Mayence; Cedarhejlm at Leipsic; Duval at Regens- 



Froh. burg; Frohlich, Kugelan, Reich, Clairville in Switzer- 



Kug. land; Bergstrasser at Hanover. In this list there is 



Reich. only one French name. The new study flourished 



Clairv. best in German soil, but Sweden maintained possibly 



Berg. supremacy up to 1800 through the great University 



Panz. at Upsala. 



The Enemies of a Plant Louse. 



By Chris. E. Olsen, Maspeth, L. L 



During the past summer I was much interested in the scale 



insect which I believe to be Pseudococcus citri Risso, which were 



very abundant in two well defined localities in Blissville and 



Greenpoint. Some were taken home for observation as to their 



enemies. The following is the result: 



In the Family Coccinellidae : 



Megilla fuscilabris Muls. — Four specimens were taken feeding 

 on the mature bugs, not common. 



Hippodamia 5-signata Kirby. — Of this Species six were captured 

 feeding on the bugs in all their stages, uncommon. (This species 

 is not in the New Jersey List.)* 



H. glacialis Fabr. — Of this only two were taken, and it seems 

 to be the rarest of all. 



H. convergens Guer. — This occurred very commonly at all 

 times (except between the broods), and was bred from eggs to 

 maturity on the bugs. 



H. 13-punctata Linn.-^Of this seven were taken. 



H. parenthesis Say. — Eight were taken of this. 



Adaliabipunctata Linn. — This was one of the commonest 

 of all, and was bred from eggs to maturity on the bugs. A small 

 hymenopterous parasite was reared from this species. 



Coccinella 9-notata Hbst. — This species was very common, and 

 being of a good size they naturally consumed a large number of 

 bugs, but unfortunately, the «pecies disappears very early in the 

 season. 



*This species has a northern range across the continent and its occurrence 

 on Long Island is interesting. Of the boreal insects which reach this vicinity 

 the path of travel is apparently via New England and the east end of the 

 Island rather than down the Hudson River Valley. — Eds. 



