THE INSECTS OF NEW JERSEY. 661 



Sub-genus NYLANDERIA Emery. 



P. (N.) imparis Say. Halifax, Newfoundland (Wheeler); Caldwell (Cr) ; 

 Staten Island (Ds) ; Camden Co. (Fox); Chester III, IV, Jamesburg 

 X, Prospertown VI (Coll). Nests in shady oak woods in soil con- 

 taining more or less clay. A large, very abundant species, which 

 feeds on nectar. 



P. (N.) imparis var. testacea Emery. Staten Island (Ds); Medford, 

 Clementon (Vk) ; Lakehurst (div) ; Lahaway (Coll) ; a pale form that 

 occurs in the sandy districts. 



LASIUS Fab. 



L. niger Linn. var. americanus Emery. Throughout the State, and per- 

 haps our most abundant species. It harbors and cultivates root-lice 

 and coccids, and nests as readily in cultivated fields as anywhere. 

 It is one of the forms responsible for the distribution of the corn and 

 strawberry root-lice. 



L. niger var. neoniger Emery. Hewitt, Staten Island (Ds) ; Newfound- 

 land (Wheeler) ; Milltown, Trenton, VII (Coll) ; Lakehurst VIII (div) ; 

 Anglesea (Vk). A rare form of the preceding; also occurring in "all 

 regions of the State. 



L. brevicornis Emery. Great Notch, Short Hills VIII, Halifax, Newfound- 

 land, Ft. Lee (Wheeler) ; Chester VIII, Jamesburg IV (Coll) ; Lake- 

 hurst IX (div). A strictly subterranean species; also cultivating root- 

 lice. 



L. flavus nearcticus Wheeler. Great Notch, Halifax, Newfoundland 

 (Wheeler). 



L. umbratus mixtus Nyl. var. aphidicola Walsh. Great Notch, New- 

 foundland, Ft. Lee (Wheeler), Caldwell (Emery); Chester X, James- 

 burg V, (Coll); Woodbury (Vk). 



L. umbratus mixtus var. affinis Schenck. "New Jersey" (Mayr). 



L. umbratus mixtus minutus Emery. Described from "New Jersey." 



L. umbratus speculiventris Emery. Great Notch, Ft. Lee (Wheeler); 

 Caldwell (Emery) the type locality. Under stones or rotten logs in 

 rich, shady woods. 



Sub-genus ACANTOMYOPS Mayr. 



L. (A.) interjectus Mayr. Short Hills VIII, Newoundland (Wheeler); 



Caldwell (Cr); Staten Island (Ds); Lakehurst (div); Lahaway VI 



(Coll). 

 L. (A.) claviger Roger. Halifax, Newfoundland, Short Hills VIII, Ft. Lee, 



Lakehurst (Wheeler) ; Caldwell (Cr) ; Staten Island (Ds) ; Riverton 



(Vk) ; Merchantville (Dke). Nests in old logs and stumps in open 



woods. 

 L. (A.) claviger subglaber Emery. Milltown V (Coll); Lacy (Dke). 



