269 



Aspidiotus hippocastani Sign., Ann. Soc. Ent. Fr., (4), ix, p. 136 (1S69). 

 ? " oxyacanthae " " " " " " " p. 137 (1869). 



tilias " " " " " " " p. 137 (1869). 



spurcatus " " " " " " " p. 138 (1S69). 



betulje Comst., 2nd Rep. Dep. Ent. Corn. Univ., p. 73 (1883). 



hippocastani " " " " " " " p. 77 (1S83). 



oxyacanthae " " " " " " " p. 80 (18S3). 



spurcatus " " " " " " " p. 82 (1883). 



tilije " " " " " " " p. 83 (18S3). 



spurcatus Witlaczil, Zur Morph. Anat. Cocc, p. 15S (1SS5). 



ostreaeformis Dougl., Ent. Mon. Mag., xxiii, p. 239 (18S7). 



" Morg., " " " XXV, pp. 45, 350 (1888). 



(Diaspidiotus) spurcatus Berl. e Leon., Cherm. Ital., Fasc. i. No. 



3 (1895)- 

 " ostreseformis Ckll., Bull. 6, T. s., Dep. Ag., pp. 5, 8, 15, 



19 (1897). 



" " " " » pp.15, 18 



" " p.i8(i897). 

 " p.i9(i897). 



" P-i9(i897)- 



" p. 19(1897). 



-Wien. & Garten- 



" betulas " " " " 



(1897). 

 " hippocastani " " " " 



" oxyacanthae " " " " 

 " spurcatus " " " " 



tili£e " " " " 



ostreasformis Goethe, Ber. Kgl. Lehr. Obst. 

 bau,p. 23 (189S). 

 " " Zeitschr., Pflanzenkrankh., viii, p.So (1898). 



" Laem., Die Obstbaumschadlinge, Dresden, p. 36 



(1S9S). 

 • " Berl. e Leon., Annali di Agr., p. 96 (1S9S). 



" Marlatt, Science, n. s., x, p. 18 (1899). 



" Newell, Contr. la. Ag. Coll., No. 3, pp. 17,31 (1S99). 



" Lockhead, Rep. Ent. Soc. Ont., p. 67 (1899). 



" Fletcher, " " " " p. 109 (1899). 



(Evaspidiotus) betulas Leon., Riv. Pat. Veg., vii, p. 38 (1899). 

 betulce Leon., Gen. e Spec. Diaspiti, Asp., p. 65 (1900). 

 oxyacanthae" " " " " p. 65 (1900). 



spurcatus " " " " " p. 65 (1900). 



ostreasformis, Marlatt, Ent. News, xi, p. 590 (1900). 



" Pettit, Bull. 180, Mich. Exp. Sta., p. 120 (1900). 



" Newst., Jn. Roy. Hor. Soc, xxiii, p. 5 (1900). 



" Frank & Kruger, Schildlausbuch, pp. 41, 51 (1900). 



" Pettit, 37th Rep. Mich. Bd. Ag., p. 248 (1900). 



" Reh, Zool.Anzeiger, xxiii, p. 497 (1900). 



" Felt, Bull. 46, N. Y. St. Mus.,pp. 323,352 (1901). 



" Newst., Mon. Brit. Cocc, i, p. 99 (1901). 



" Quaint. & Scott, Cocc.Amer.,Dec.iii-iv, No. 13(1901). 



" Banks, Bull. 34, n. s., Dep. Ag., p. 18 (1902). 



