530 PROCEEDINGS OF THE ACADEMY OF [June, 



XIPHIDIUM Serville (= Conocephalus Thunb.). 

 X. fasciatum De Geer. 



General Range. — Very widely distributed from Canada to the 

 Gulf, and, according to Redt'enbacher, as cited by Blatchley, through 

 South America to Argentina. 



Local Distribution. — Abundant in suitable locations in the 

 Middle and Coastal Districts; frequent, but rather local, in the 

 Piedmont Region. In my experience it is uncommon in the Pine 

 Barrens. 



Ecological Distribution. — Most typical of low, moist areas 

 overgrown with low, succulent grasses, sedges and rushes; especially 

 plentiful in the Juncus gerardU zone along the edges of the salt 

 marsh, but not normally found on true salt marsh. Occasionally 

 found in quite dry situations, as in hillside pastures where there is a 

 good growth of the low rush, Juncus tenuis. 



Locality Records. — 



Piedmont Plateau. — Harrisburg (Pa. St. Dept. Zool.); Rockville 

 (Pa. St. Dept. Zool.); Camphill (Pa. St. Dept. Zool.); Rock Hill 

 (Fox) ; Perkasie, on pastured hillside in Juncus tenuis (Fox) ; 

 Collegeville, in stream meadows (Fox) ; Mt. Airy, in small grassy 

 bog (Fox); Pink Hill (Fox); Swarthmore (A. N. S.). 



Middle District. — Cornwalls (Rehn and Hebard) ; Elmwood, in 

 Tinicum meadows (Fox) ; Paschalville, in Tinicum meadows (Fox) ; 

 Essington (Fox); Newcastle (Fox). 



Washington Park (Fox); Blackwood (Fox); Medford (Stone); 

 Clementon (Fox) ; Jericho, in stream meadow (Fox) ; Canton (Fox) ; 

 Dorchester (Fox). 



Pine Barrens. — Taunton (Stone) ; Penbryn, rare on cranberry 

 bog (Fox); Atsion (Fox). 



Coastal District. — West Creek (Rehn) ; Chestnut Neck, Atlantic 

 Co. (Rehn); Petersburg (Fox); Tuckahoe, low lands along river 

 (Fox) ; Ocean View (Fox) ; Sea Lsle City (Fox) ; Townsend Inlet 

 (Fox); Avalon (Fox); Piermont (Fox); Cape May (Fox); Cape 

 May Point (Fox) ; Goshen (Fox) ; Dennisville, edge of salt marsh 

 (Fox). 



Cape Maij Diferior. — Sea Isle Junction, edge of Great Cedar 

 Swamp, scarce (Fox). 

 X. brevipenne Scudder.^s 



General Range. — Canada to the Gulf of Mexico, east of the 

 Plains. 



^'^ Iticludcs X . I'lisifcnini Scudd. 



