8 Julius Edl. V. Bergenstainra uud Paul Low. 



Haliday, Catalogue of Diptera occuring about Holywood iu Downshire. 



Eutom. Maj. Lond. 1833, p. 143-180. 



*Hanin, Neue Beobachtungen über die Fortpflanzung der viviparen Dipterenlarven. 



ZeitBchr. f. wies. Zool. 1865, T. XV, p. 375—390, pl. XXVII. 



Hardy, On the effects produced by some Insects etc. upon Plants. 



Ann. et Mag. Nat. Hist. 1850, T. VI, p. 182-188. 



— (Ein Artikel über Gallmücken, den wir nicht einsehen konnten, befindet 

 sich in Scottland Gardener 1854.) 



Harris T. W., Extracts from a paper entitled „Some account of the insect 

 known by the name of the Hessian Fly, aud of a parasitic insoct that 

 feeds on it, by Thomas Say." (With additional remarks.) 



New Engl. Farmer 1830, T. IX, Nr. 2, p. 9. 



— Wheat insects continued. 



Ibid. 1841, T. XIX, p. 306-307. 



— A Report on the Insects of Massachusetts, injurious to Vegetation. Cam- 

 bridge 1841 und 1842. 



Silim. Amer. Journ. Sc. 1842, T. XLII, p. 380; — 1813, T. XLIII, p. 386—388. 



— Daraus: The Hessian Fly. 



New Engl. Farmer 1842, T. XX, p. 409—410. 



— A Treatise of the Insects of New England, which are injurious to Vege- 

 tation. 1. edit. Cambridge 1842; 2. edit. Boston 1852; 3. edit. Boston 1862. 



— Observations on the transformations of the Cecidomyiae. 



Proc. Boston Soc. Nat. Hist. 1860, T. VII, p. 179—183. 



— Entomological Correspondence. 



Occasional papers Boston Soc. Nat. Hist. T. I, 1869. 



Hartig Th., Entomologische Notizen im Jahresberichte über die Portschritte 

 der Forstwissenschaft und forstlichen Naturkunde 1837, T. I, p. 640—646. 

 Havens, Observations on the Hessian Fly. 



Trausact. Soc. N. Tojk for the Promot. of Agric. 1792, P. I, p. 89-107. 



Heeger, Beiträge zur Naturgeschichte der Insekten. 



Sitzbr. Acad. Wiss. 'Wien 1851, T. VII, p. 203, pl.; p. 342, pl. 



— Neue Metamorphosen einiger Dipteren. 



Ibid. 1856, T. XX, p. 335, pl. 



Heer, Urwelt der Schweiz. Zürich 1865. 

 Henslow, On Gecidomyia tritici. 



Rep. Brit. Assoc. Adv. Sc. 11 Meet. 1841, Sect. p. 72—73. — Journ. R. Agric. Soc. Engl. 

 1841, T. II, p. 22—24 ; 1842, T. III, p. 36—40. 



Herpin, Memoire sur divers insectes nuisibles ä Tagriculture et plus particu- 

 lierement au fi-oment, au seigle, a l'orge et au trefle. 



E.xtr. des Mem. Soc. R. Agric. Paris 1842. 



Herrik, A brief preliminary account of the Hessian Fly and its parasits. 



Silim. Americ. Journ. 1841, T. XLI, p. 153—158. 



— Observations communicated at the reqnest of the Hon. H. L. Elsworth 

 by E. C. Herrik etc. The Hessian Fly. 



Rep. of the Commis. of Patents »howing the Operations of the Patent office during the 

 year 1814, p. U>1— 167. 



— Entomological Correspondence by Harris (v. Harris). 



