998 FORMICIDAE 



LePTOTKORAX Mayr 



L. curvispinosus Mayr. McLean (Wheel-CU) ; SI: Richmond, Watchogue, Arro- 

 char, and many other places (D&B) ; LI: Half Way Hollow Hills, Wyan- 

 danch, Yaphank, Amagansett, Pinelawn, Cold Sp. Harb. (D&B). Nests in 

 hollow twigs and galls (Wheel). 



L. curvispinosus Mayr subsp. ambiguus Emery. "NY" (teste Emery). 



L. longispinosus Roger. McLean (Wheel-CU) ; West Pt., Ds (Beq) ; SI: Willow 

 Br., May, Tottenville, Arrochar (D&B) ; LI: Amagansett, Half Way Hollow 

 Hills, Gardiners L (D&B). Nests under small stones lying on large boulders, 

 in the clefts of rocks, in hollow nuts lying on the ground, and more rarely 

 under bark (Wheel). 



L. fortinodis Mayr. Newport, Genesee (Beq) ; SI: Richmond, May-Je (D&B) ; 

 LI: Calverton (D&B). Rare on SI and LI. Has been found nesting in the 

 bark of a living pitch pine (Wheel). 



L. acervorum (Fab.) subsp. canadensis Prov. Mt. Marcy, and foot of Cliff Mt. 

 (Beq) ; Mt. Whiteface, Ds (Beq). A rather rare boreal form nesting in bark 

 in small colonies (Wheel). 



L. schaumii Roger. SI: Richmond. Nests in bark of large elms and willows 

 (Wheel). 



HaRPAGOXENUS Forel 



H. americanus (Emery). Bronxville (Wheel). 



TeTRAMORIUM Mayr 



T. caespitum (L.). The Lawn Ant. NYC (Beq); Bronx Pk., Ds (Beq); 



Bronxville (Wheel) ; SI: Arrochar, New Brighton, and elsewhere (D&B) ; 



LI: Baldwin,* Forest Pk., Rockaway Beach, and Cold Sp. Harb. (D&B). 



Introduced. 

 T. guineense (Fab.). LI: Brooklyn, Jan, in greenhouse; introduced (D&B). 



StRUMIGENYS F. Smith 



S. pergandei Emery. LI: Forest Pk., Brooklyn, Sep (D&B). Very rare ants, 

 making subterranean nests, often mixed with larger species (Wheel). 



TRACHYMYRMEX Forel 



(These are the fungus-growing ants.) 



T. septentrionalis (McC). Milford (Ds) ; LI: Wading R., May-Je, Hauppauge, ; 



Smithtown, Selden (D&B). The colonies of two to seven spherical chambers I 



are built only in sand, and after a few weeks in early spring are closed until j 



after the heat of sum.mer has passed. \ 



SUBFAMILY DOLICHODERINAE 



TapINOMA Foerster 



T. sessile (Say). Ithaca, extremely abundant; McLean; SI: Old Place, Tottenville, 

 Todt Hill, and Watchogue (D&B); LI: Rockaway Beach, Riverhead, Yap- 

 hank, Wading R., Orient Pt., Fire I., Wyandanch, Pinelawn (D&B). One of 

 the most abundant of ants. Nests under stones, logs, etc., mostly in open 

 places. 



