112 THE CANADIAN ENTOMOLOGIST. 



(15) Dacty/opius CockereIli,}L\ug a.wdiTms\Qy ; 1898- 1896. N. 



A very common species ; found at Lawrence, Methuen, Andover, 

 and Dracot, Mass., in nests of Lasiiis flavus, L.; L. claviger, Rog.; and 

 L. Americanus, Gm. The above three species are subterranean and 

 their food plants are as yet unknown. 



(16) Dactylopius pscudonipcc, Ckll.; 1897-1898. N. 



Tiiis species seems to be quite common at Lawrence in greenhouses 

 on various species of palms, and is also found in Michigan and Cali- 

 fornia on palms in greenhouses. 



(17) Phenacoccus aceris, Sign.; 1875-1894. I. Syn. Pseudococcus 



aceris, Sign. 



A very injurious species to Maples at Springfield, Jamaica Plains, 

 Brookline, Norwood, and Holyoke, Mass. It is recorded from Rhode 

 Island, Pennsylvania, New Jersey, Maryland, and Illinois, and is preyed 

 upon by a coccinellid (Hyperaspis signata, Oliv.), observed by R. A. 

 Cooley at Springfield, Mass., 1898. 



(18) Phenacoccus americance. King and Ckll.; 1897-1897. N. 



This has only been found once in a nest with Lasius americanus, 

 Gm., at Andover, Mass. 



(19) Sphcei'ococciis sylvestris,Q.W\. 2iXi^¥Av\g\ 1898-1898. N. 



Found on a young white oak at Methuen, Mass. This is the first 

 species of the genus to be found in North America. The type is in the 

 national collection of Coccidte at Washington. The genus is known from 

 Australia to Japan. 



Asteroleca7iiince. 



(20) Asterolecaniuin quercicola, Bouche j 1851-1898. I. Syn. Astero- 



diaspis quercicola, Bouche. 



A common species at Middlesex Fells, on white oak and swamp 

 oak, at Medford on English oak, and Worcester on golden oak. Mr. A. 

 H. Kirkland in 1898 reared several examples of a very interesting 

 imported parasite, Habrolepis Dalmannii, from the Coccidse at Middlesex 

 Fells. All the parasites mentioned in this paper have been studied by 

 Dr. Howard. The coccid has been found at Washington, D. C; New 

 York, and Connecticut, on imported European oaks and American white 

 elm- 



