808 Van Duzee: Catalogue of Hemiptera [2923V^- 



29231/2- Psyllia ambigua (Forst.) 

 Forster, Verh. Natw. Ver. Preuss. Elieinl., v, p. 79 (p. 74, Osh.), 18-48, Psylla. 

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

 Low, Verh. Zool.-Bot. Ges. Wien, xxxii, p. 2.31, 1882, Psylla. 

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

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



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



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

 melina Flor, Ehyn. 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. 

 stcnolahis 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, Cliermes. 

 Host : Salix. 

 Localities: Greenland. (Europe.) 



2924. Psyllia quadrilineata (Fh.) 

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



Thomas, 8th Rept. HI. St. Ent., p. 18, 1879, Psylla (after Fitch). 

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

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

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



Host: Salix. 



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



29241/2. Psyllia arctica (Walk.) 

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

 Seott, 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 (Orawf.) 



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, P.sylla (described and 



a. var. minor (Crawf.) 



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



b. var. flava (Crawf.) 



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

 Host: Salix. 

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



2926. Psyllia 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. 



