808 Van Diczee: Catalogue of Hemiptera [2923%- 



29231/2- Psyllia ambigua (Forst.) 



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

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

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

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

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



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



Meyer-Dur, 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. 

 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 Eept. 111. St. Ent., p. 18, 1879, Psylla (after Fitch). 

 fProvancher, 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. 



2924%. Psyllia arctlca (Walk.) 

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

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

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

 Host: (f) 

 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 

 a. var. minor (Crawf.) 



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

 1). 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. 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. 



