IsoMETOPiDAE — Cryptostematidae — Hydrometridae — Gerridae 135 



Family ISOMETOPIDAE Fieber 



Compiled by Harry H. Knight 

 CORTICORIS McAtee and Malloch 

 C. pulchellus (Heid.). LI: Sea Cliff (Held). 



Heidemannia Uhler 



H. cixiiformis Uhler. Batavia, Jl, Kngt. During July of 1913 and 1914, twenty- 

 seven female specimens were found in scraping rough bark from the trunks 

 of apple trees; the bugs appeared to be associated with psocids under the 

 bark. 



Family CRYPTOSTEMATIDAE 



{Dipsocoridae, Schizopteridae ) 



CerATOCOMBUS Signoret 



C. (Xyloiianmis Reut.) vagans McAtee & Mall. Keene Val., Je, Not (Mc- 

 Atee & Mall). This species occurs in damp, rotten wood (Brb). 



Family HYDROMETRIDAE 



Compiled by J. R. de la Torre-Bueno 



Hydrometra Lamarck 



1281 H. martini Kirk. Ithaca, May-Aug (Bno, MacG-CU) ; McLean, Jl 14 

 (Bno) ; White Plains, Mar-Aug, in great abundance (Bno) ; Van Cort. 

 Pk., Ap, Jl (Bno) ; SI, May, Bno & Ds (Bno), Ap 11 in plowed 

 field, Ds (Bno) ; LI: Cold Sp. Harb., Jl (Bno). 



Family GERRIDAE 



Compiled by J. R. de la Torre-Bueno 



subfamily GERRINAE 



Gerris Fabricius 



1283 G. remigis Say. Mt. Whiteface, Aug (EPV) ; Axton, Je (M&H) ; Old 

 F'orge (Bno); Cranberry L. (O&D) ; Caledonia Cr., Dec (Lint); 

 Colden, Gowanda, Jl-Aug (EPV) ; Ithaca, Jl-Aug (CU) ; Fly Cr., 

 Aug {Bno) ; White Plains, Scarsdale, Port Chester, Feb-late Nov 

 {Bno) ; Mosholu, Van Cort. Pk., Central Pk., NYC, Ap-Je {Bno) ; 

 SI, Feb-Mar (Bno), Jl {Ols)\ LI: Flushing, Mar, Hempstead, Jl, 

 {Ols) ; Cold Sp. Harb., Jl, in brackish stream (Bno) ; Yaphank, Sep, 

 Eng (Bno). 



1285 G. conformis Uhl. Ithaca, Aug (CU) ; Croton-on-Hudson, Aug (Ols) ; 

 White Plains, Je-Jl {Brio) ; Mamaroneck, May {Bno) ; LI: Cold Sp. 

 Harb., Jl, in brackish stream {Bno). 



1288 G. marginatus Say. Old Forge, Je-Jl (CU) ; Cranberry L. (O&D) ; Fulton, 

 Je, Mary Hill (CU) ; Otto (CU) ; Buffalo, Colden, Je-Sep {EPV); 

 Ithaca, May-Sep (CU) ; Carmel, Aug (Bno) ; White Plains, Mar and 

 throughout the year, adults in spring and fall {Bno) ; Van Cort. Pk., 

 Central Pk., NYC, Mar-Oct (Bno); SI, Mar-Sep {Bno, Ols); LI: 

 Maspeth, Flushing, Newtown Hgts., Hempstead, Lynbrook, Mar-Nov 

 {Ols) ; Cold Sp. Harb., Jl, in brackish stream (Bno) ; Yaphank, Sep, 

 Eng (Bno). 



