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89. Xylococcus quercus Ehrh. 



Xylococcus quercus Ehrh., Can. Ent., xxxii, p. 311 (1900). 

 Habitat. — California. 

 On Quercus chrysolepis. 



Subfamily ORTHEZIIN^. 



Genus ORTHEZIA Bosc. Type, characias = urticae. 



Orthezia Bosc, Journ. de Phys., xxiv, p. 173 (1784): Latr., Gen. Crust, et Ins., 

 iii, p. 175 (1S02): Amy. & Serv., Hist. Nat. Ins., Hem., p. 620 (1843): 

 Sign., Ann. Soc. Ent. Fr., (5), v, p. 386 (1875): Dougl., Ent. Mon. Mag., 

 xvii, p. 176 (1S81): Comst., Rep. U. S. Dep. Ag., 1880, p. 349 (1881): 

 Lounsb., 32nd Rep. Mass. Ag. Coll., p. 121 (1895): Giard, Bull. Soc. 

 Ent. Fr., Ixvii, p. 8 (1898): Ckll., The Entom., xxxv, p. 259 (1902). 



Dorthesia I'Abbe d.Orthez, Journ. de Phys.,xxvi, p. 207 (1785). 



Cionops Leach, Edinb. Ency., ix, pt. i, p. 126 (1815). 



Cyphoma Gistel, Naturges. des Theirreiche, p. 151 (1848). 



90. Orthezia americana (Walk.). 

 Dorthesia americana Walk., Cat. Br. Mus., Horn., iv, p. 1091 (1852). 



" " Sign., Ann. Soc. Ent. Fr., (4), viii, p. 843 (1868). 



Orthezia " Comst., Rep. U. S. Dep. Ag., 1880, p. 349 (1881). 



" " " 2nd Rep. Dep. Ent. Corn. Univ., p. 136 (1883). 



Dorthesia " Dougl., Ent. Mon. Mag., xxvii, p. 246 (1891). 



Orthezia " Lounsb., 32nd Rep. Mass. Ag. Coll., p. 124 (1895). 



" " Osborn, Contr. la. Ag. Coll., p. 2 (1898). 



Habitat. — Canada; New York; Iowa. 



91. Orthezia annae Ckll. 



Orthezia annas Ckll., Ann. Mag. N. H., (6), xii, p. 403 (1893). 



" " " Can. Ent., xxvi, p. 285 (1894). 



" " Lounsb., 32nd Rep. Mass. Ag. Coll., p. 123 (1895). 



Habitat. — New Mexico; Arizona; Colorado. 

 On Chenopodium ; Atriplex canescens. 



92. Orthezia artemisiae Ckll. 

 Orthezia artemisias Ckll., Can. Ent., xxx, p. 19 (1898). 

 Habitat. — New Mexico. 

 On Artemisia (sage-bush). 



93. Orthezia cataphracta (Shaw). 

 Coccus cataphractus Shaw. Nat. Misc., v, pi. 182 (1794). 



" " " Gen. Zool., vi, p. 194 (1S06). 



Dorthesia cataphracta Westw., Mod. Class. Ins., ii, p. 445 (1840). 



" chiton Zett., Ins. Lapp., p. 314 (1840). 



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