134 BIOLOGICAL SURVEY OF 



Phalacrus Paykull 



P. POLiTus MelslL (10773). Mt. Desert (Br.), Sept. 17. 



Olibrus Erichson 



0. SEMisTKiATUs LeC. (10780). Swept from Solidago, Sec. 16, 



Aug. 14. Common. 

 0. PALLiPEs (Say) (10786). Taken from 8oJida\go, Bar Harbor; 



Narrows ; Seal Harbor, July 24- Aug. 20. 

 0. sp. Mt. Desert (Br.), Aug. 23 ; Corfield, Sept. 17. 



SiTLBus Seidlitz 



S. sp. Station F270, Oct. 5. Scarce. 



CocciNELLiDAE. The Lady Beetles 



The 'lady bugs' are among the most beneficial of insects. 

 As they feed upon the bark lice as well as plant lice, they 

 are taken by beating and sweeping. 



Hypeiraspis Chevrolat 



H. BiGEMiNATA (Raud.) (10877). Bar Harbor sweeping, Aug. 



16. 

 H. UNDULATA (Say) (10930). Bar Harbor in house, Nov. 18. 



Brachyacanthus Chevrolat 



B. URsixA (Fab.) (10972). Occurs on the leaves and flowers of 

 milkweed {Asdepias). Long Pond, Aug. 21. 



MiCROWEisEA Cockerell 



M. MAEGiNATA (LeC.) (10988). Mt. Desert (Br.), Sept. 12. 



Stethorus Weise 



S. PUNCTUM (LeC.) (10998). Mt. Desert, July (McAtee). 



