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1866. FITCH, ASA. Month, Journ., N. Y. State Agr. Soc., Aug., p. 73. 

 1866. WALSH, BENJ. Proc. Ent. Soc. Phila., 4, 281. 

 1871. SMITH, FREDFRICK PORTER. Contributions towards the Materia 

 Medica and Natural History of China. Shanghai, 156. 



1875. VIEDT, C. H. Uber Schwarz Schreibtinten. Dingler's Polytech- 



nisches Journal, 216, 453. 



1876. HANBURY, DANIEL. Science Papers, Notes on Chinese Materia 



Medica, 266, London, MacMillan Co. 



1879. COURCHET, LUCIEN. Etude sur Les Galles Produites par les 



Aphidiens, 43, Montpellier. 



1880. ISHIKAWA, IWAWO. Materials containing Tannin used in Ja- 



pan. Chem. News, 42, 277. 

 1883. LICHTENSTEIN. J. Ein neues Aphidien-Genus. Stettiner Ent. 



Zeit, Jahrg. 44, No. 4-6, 240. 

 1884. HARTWICH, C. Ueber die Japanischen Gallen. Arch. d. Phar- 



macie, Jahrg. 63, 212, 904. 



1886. UYENO, S. Sina Boyeki Bussan Jiten, 1886, 91 (Japanese). 

 1892. WATT, GEORGE. Dictionary of the Economic Products of India. 



London and Calcutta. 



1892. TRIMBLE, HENRY. The Tannins, i, 58. 

 1895. SHIRAI, MITSUTARO. Galls of Rhus semi-alata var. obbeckii. The 



Botanical Magazine, 9, 95, i (Japanese). 

 1908. OKAJIMA, G. Contribution to the Study of Japanese Aphididae, 



I. Bui. Col. Agr. Tokyo, 8, No. i. 



1910. SASAKI, C. Life History of Schlcctendalia chincnsis, Jacob 



Bell. (A gall-producing Insect.) Festschrift zum Sechzig- 

 sten Geburtstag Richard Hertwigs, 2, 239. 



1911. BUTLER, F. H. Article on Galls. Ency. Brit., n, 424. 



1912. THORPE. Dictionary of Applied Chemistry. 



EXPLANATION OF PLATE XXVI. 



Fig. i. Illustration of the Wu-p'ei-tsee from the Pen tsao Kang mu. 

 Fig. 2. Galls produced by Mclaphis chincnsis. 

 Fig. 3. Wing of M. chincnsis. 



Clouds of Butterflies (Lep.). 



I have seen clouds of butterflies, all of the same species, passing over 

 a district [in the Congo] for three months at a time, like flakes of red 

 snow, and in such close array that one could destroy dozens of them 

 by throwing one's hat on the ground. The real savage beast of Equa- 

 torial Africa, and the most formidable, is the insect. CUREAU, Savage 

 Man in Central Africa, London [n. d. 1915], pp. 217-218. 



