808 Van Duzee: Catalogue of Hemiptera [292314- 



2923%. PsyUia ambigua (Forst.) 

 Forster, Verh. Natw. Ver. Preuss. Elieinl., v, p. 79 (p. 74, Osh.), 1848, Psylla. 

 Meyer-Diir, Mitt. Scliw. Ent. Ges., iii, p. 400, 1871, Psylla. 

 Low, Verh. Zool.-Bot. Ges. Wien, xx.xii, p. 231, 1882, Psylla. 

 Edwards, Heniip. Honiop. Brit. Isds., p. 244, 1896, Psylla. 

 Aulmann, Psyllid. Cat., p. 10, 1913, Psylla (listed). 



insignis Forster, Verh. Natw. Ver. Preuss. Rheinl., v, p. 74, 1848, Psylla. 



Meyer-Dur, Mitth. Schw. Ent. Ges., iii, p. 400, 1871, Psylla. 

 melina Flor, Rhyn. LivL, ii, p. 477, 1861, Psylla. 



Flor, Bui. Soc. Nat. Moscou, xxxiv, p. 345, 1861, Psylla. 

 Kuwayama, Trans. Sapporo Nat. Hist. Soc, ii, pp. 162, 172, 1907, Psylla. 

 stenolabis Low, Pet. Nouv. Ent., ii, p. 65, 1876, Psylla. 



Low, Verh. Zool.-Bot. Ges. Wien, xxvi, p. 144, pi. 6, fig. 10, 1877, Psylla. 

 Sulc, Sitz.-Ber. Bohm. Ges. Wissen. for 1909, No. 22, p. 25, Psylla. 

 annellata Thomson, Opusc. Ent., viii, p. 836, 1877, Chermes. 

 Host : Salix. 

 Localities: Greenland. (Europe.) 



2924. Psyllia quadrilineata (Fh.) 

 Fitch, Homop. N. Y. St. Cab., p. 65, 1851, Psylla. 



Thomas, 8th Kept. 111. St. Ent., p. 18, 1879, Psylla (after Fitch). 

 fProvaucher, Pet. Faune Ent. Can., iii, p. 305, 1890, Psylla. 

 Mally, Proc. la. Acad. Sci., ii, p. 153, 1893, Psylla. 

 Crawford, U. S. Natl. Mus., Bui. 85, p. 148, 1914, Psylla. 

 Host : Salix. 

 Localities: Quebec, N. Y., Kans., Colo. 



29241/0. PsyUia arctica (Walk.) 

 Walker, List Homop., iv, p. 931, 1852, Apluilara. 

 Scott, Trans. Ent. Soc. Lond. for 1882, pi. 19, fig. 1, Aphalara. 

 Psylla sp., Schwarz, Proc. Wash. Acad. Sci., ii, p. 540, 1900. 

 Host: (?) 

 Localities : Hudson 's Bay, Alaska. 



2925. Psyllia americana (Crawf.) 



Crawford, Pomona Jl. Ent., iii, p. 628, 1911, Psylla (nomen nudum). 

 Crawford, Pomona Jl. Ent., iv, p. 684, 1912, Psylla (mentioned). [figured) 

 Crawford, U. S. Natl. Mus., Bui. 85, p. 147, 1914, Psylla (described and 



o. var. minor (Crawf.) 



Crawford, U. S. Natl. Mus., Bui. 85, p. 147, 1914, Psylla. 



h. var. flava (Crawf.) 



Crawford, U. S. Natl. Mus., Bui. 85, p. 148, 1914, Psylla. 

 Host: Salix. 

 Localities: Colo., Utah, Calif., Ore., Brit. Col., Albta. 



2926. PsyUia ribis (Patch) 

 Patch, Me. Agr. Exp. Sta., Bui. 202, p. 222, 1912, Psylla. 

 Crawford, U. S. Natl. Mus., Bui. 85, p. 148, 1914, Psylla. 



Host: (?) 



Localities: Me., Colo. 



