04 NINETEENTH REPORT STATE ENTOMOLOGIST OF MINNESOTA—IQ22 
GorzE, Jou. Auc. EPHRAIM 
1778 Entomologische Beitrage zu des Ritter Linné zwoliten Ausgabe des 
Natursystems. Zweyter Theil. 8vo. Leipzig, 1778. pp. iti-lxxii+ 
1-352. [Hemiptera pp. 1-352.| 
HacEn, H. A. 
1883 On the colour and the pattern of insects. Proc. Am. Acad. Arts Sci. 
ser. 2, 1x, 1882, pp. 234-262. (1883). 
Hart, CHARLES ARTHUR 
1919 The Pentatomoidea of Illinois with keys to the Nearctic genera. Lhi- 
nois Dept. of registration and education, division of the Natural 
History Survey, Bul. viii, article vii, pp. 155-223, pls. xvi-xxi. 1919. 
Harvey, R. B. 
1919 Importance of epidermal coverings. Bot. Gaz., Ixvil, pp. 441-444, figs. 
1-2. 
Howakrp, L. O. 
1900 A new western enemy of the Colorado potato beetle. Jn Some mis- 
cellaneous results of the work of the Division of Entomology. U. S. 
Ent. Div., Bul. 22, n. s., pp. 102-103. 1900. 
KirKkaLpy, G. W. 
1909 Catalogue of the Hemiptera (Heteroptera) with biologicel and ana- 
tomical references, lists of food plants and parasites, etc. Vol. I: 
Cimicidae. pp. XL+1-392. 8vo. Berlin, 1900. 
Letuierry, L., and SEVERIN, G. 
1893 Catalogue Général des Hémiptéres. I, Heteroptera. S8vo. Bruxelles, 
1893. pp. x+286. 
MarsH, H. O. 
1913. The striped beet caterpillar. /1 Papers on insects affecting vegetables 
and truck crops; “U. S. Bur. Ent., Bul. 127, pt. i, pp) Di-16s2One: 
Nasu, C. W. 
1912 Reports on insects of the year. Forty-second annual report of the 
Entomological Society of Ontario. I9QII. pp. 17-19. (1912). 
Osporn, HERBERT 
1892 Catalogue of the Hemiptera of Iowa. Proceedings of the Iowa Acad- 
emy of Sciences, i, pt. ii, pp. 120-131. 1892. 
1894 Notes on the distribution of Hemiptera. Proc. Iowa Acad. Sci., i, pt. 
iv, pp. 120-123. 1804. 
PALMER, Leroy S. 
1922. Carotinoids and related pigments, the Chromolipoids. The Chemical 
Catalog Co., New York. 8vo. pp. 1-316. 
Reni. ele 
1908 Insects of 1907. Michigan Agr. Exp. Sta., Bul. 251, pp. 113-123. 1908. 
PHyYSALIX, C. 
1894 Recherches sur la matiére pigmentaire rouge de Pyrrhocoris apterus L. 
Compt. Rend., 178, 1894, pp. 1282-1283. 
Say, THOMAS 
1852. Descriptions of new Hemipterous insects, collected in the expedition 
to the Rocky Mountains, performed by order of Mr. Calhoun, Sec- 
retary of War, under command of Major Long. Jour. Acad. Nat. 
Sci. Philadelphia, iv, 1825, pp. 307-345. 
