LACE BUGS OF THE WORLD 159 



1951, p. 96, fig. 4, graphs 3-5 [Vt.; Mass.]; 1959, p. 67 [Conn.; 

 R.I.].— Feldman and Bailey 1952, pp. 96, 98, 102, 103, figs. 4, 9. 

 Corythucha hoodiana Osborn and Drake 1917b, p. 302 [Oreg.]. — Gibson 



1918, pp. 76,82. 

 Corythucha exigaa Drake (in Gibson 1918, pp. 76, 83). 

 Corythucha pyriformis Parshley 1920c, p. 81 [Maine; N.H.]; 1922a, p. 



236. 

 Corythuca pruni: Blatchley 1926, p. 465. 

 Corythuca exigua: Blatchley 1926, p. 467. 

 Type: Sex unknown; Washington, D.C., U.S.; Ohio State Univ. 

 Distribution: U.S. (Maine; N.H.; Conn.; R.I.; Mass.; Vt.; N.Y.; 

 Md.; D.C.; Va.; N.C.; Ga.; Ohio; Mich.; Ind.; 111.; Mo.; Iowa; Nebr.; 

 Utah; Oreg.). 

 Host Plant: Prunus serotina. 



Note: Life history study [Bailey]; leaf injury [Bailey]; ovipositor [Feld- 

 man and Bailey]. 

 *Corythucha sagillata Drake 



Corythucha sagillata Drake 1932, p. 101 [Ariz.; Vauquelinia calif ornica]. 

 Type: Holotype 9, macropterous; Santa Catalina Mountains, Arizona, 

 U.S.; Drake Coll. (USNM). 

 Distribution: U.S. (Ariz.). 

 Host Plant: Vauquelinia calif ornica. 



*Corythucha salicata Gibson 



Corythucha salicata Gibson 1918, pp. 77, 90 [Oreg.].— Parshley 1919a, 

 p. 20 [B.C.]; 1921, p. 17 [Salix lasiandra].— Drake 1921b, p. 53 [Wash.; 

 Man.; poplar; alder]. — Downes 1925, p. 16, fig. 2 [Salix scouleriana]. — ■ 

 Thompson and Wong 1933, pp. 1090-1095, fig. 95. 

 Corythucha drakei Gibson 1918, pp. 71, 77, 98 [Calif.; Pyrus malus]. 

 Corythucha essigi Drake 1918c, p. 385 [maize]. 

 Corythucha platini Drake 1920, p. 49 [sycamore]. 

 Type: Holotype 9, macropterous; Hood River, Oregon, U.S.; Drake 

 Coll. (USNM). 



Distribution: U.S. (Oreg.; Wash.; Calif.; Idaho; Utah); Canada 

 (Man.; B.C.). 



Host Plants: Salix lasiandra; Salix scouleriana; Pyrus malus; £ea mays; 

 poplar; alder; sycamore. 

 Note: Life history study [Thompson and Wong]. 



*Corythucha scitula Drake 



Corythucha scitula Drake 1948c, p. 24 [Oreg.; Corylus rostrata]. 

 Type: Holotype o 71 , macropterous; Stayton, Oregon, U.S.; Drake Coll. 

 (USNM). 

 Distribution: U.S. (Oreg.). 

 Host Plant: Corylus rostrata. 



