Xll AUTHORITIES. 



arrangement of the whole group, and numerous descriptions (among 

 which some eighty new North American species) ; but, according to 

 the author's ordinary method, no notice whatever has been taken of 

 the previous publications upon the same subject. 



DRUKY, Drew. Illustrations of Natural History, wherein are exhibited up- 

 wards of two hundred and forty figures of exotic insects. London, 

 1770-82. 3 vols. (A new edition of this work has been published 

 in 1837, by Westwood. under the title of Illustrations of Foreign 

 Entomology.) Eight N. American and West Indian species are 

 figured. 



DUFOITR, Leon. Revision et Monographic du Genre Ceroplatus. In the 

 Annales des Sciences Naturelles, 2e serie, vol. xi. p. 193 (1839), 

 with figures. Contains the description of Ceroplatus carbonarius 

 Bosc, from Carolina. Conf. Bosc. 



DUMERIL, A. M. C. Considerations Grenerales sur la classe des Insectes, etc. 

 Strasbourg et Paris, 1823. With plates. No new species. 



ERICHSON, F. W. Die Henopier. Eine Familie aus der Ordnung der Dip- 

 tern. (In Erichson's Entomographien, Berlin, 1840.) Ocncea mi- 

 cans, new species from Mexico. 



ESCHSCHOLZ, Dr. J. F. Entomographien, in 8vo. Berlin, 1823. 



Empis laniventris, and Musca obsccena, new species from Una- 

 laschka (Russian America). 



FABRICIUS, J. C. Systema Entornologias. Flensburgi, 1775. 

 " Mantissa Insectorum. 2 vols. Hafnise, 1787. 

 " Eiitornologia Systematica. 4 vols. Hafuise, 1792-94. 

 " Systema Antliatoruni. Brunsvigre, 1805. 



FABRICIUS, 0. Fauna Grcenlandiae. Hafnise et Lipsise, 1780. 8vo. 

 Eighteen diptera are described. 



FITCH, Dr. Asa. An Essay upon the Wheat-fly and some species allied to 

 it. Albany, 1845. 



This is the first edition, which was published in the American 

 Quarterly Journal of Agriculture and Science, vol. ii. No. 2. It 

 contains the descriptions of Cecidomyia tritici, Kirby ; Cec. caliptera, 

 11. sp. ; Cec. thoracica, n. sp. ; Cec. tergata, n. sp. A second edi- 

 tion appeared in 1846, in the Transactions of the N. Y. State Agri- 

 cultural Society, vol. v. A new species, Cec. borealis, is separated 

 in this edition from the former, C. caliptera, and full descriptions 

 with figures of both are given. 



" The Hessian Fly. Albany, 1846. (2d edit. 1847.) With a plate. 

 Published originally in the American Journal of Agriculture and 

 Science, vols. iv., v. (1846). Reprinted afterwards in the Transac- 

 tions of the N. Y. State Agricultural Society, vol. vi. (1847). 

 " Cecidomyia salicis, n. sp., described in the American Quarterly 

 Journal .of Agriculture and Science, vol. i. p. 263. 



