CATALOGUE OF NORTH AMERICAN DIPTERA. I 57 



F. Low, Verb. Zool.-Bot. Ges., 1878, 15, pi. iv, f. 4 (id.). 



Wachtl, Entom. Biol. Stud., ser. i, 1878, 9-1 1, on var. of Bctula pendula 



(id.). 

 LiNTNER, Country Gentleman, li, 287, 1886, oc. in N. A. ; 3d N. Y. Rept., 



85, 86, 141, 143; 4th Rept., 27, 205, 206 (parasites) ; iilh Rept., 162-165, 



pi., life hist., etc. (all Cecidomyia). 

 RiJBSAAMEN, Berl. Ent. Zeitsch., xxxvii, 377, pi. vii and xii. 



MAYETIOLA. 



KiEFFER, Miscellanea Entomologica, Jan., 1896; Wien. Ent. Zeit., xv, 89, 



1896. 



Note.— The only North American representative is the well-known '' Hes- 

 sian Fly," so-called from the supposition that it was introduced from Eu- 

 rope along with the Hessian soldiers in the Revolution. It has uniformly 

 been referred to the genus Cecidomyia in the past by American writers. 

 The larva injures young wheat plants; it is found between the stalk and 

 the sheathing portion of one of the lower leaves. 



The literature is very voluminous. Kertesz, in his Catalogue, 11, 76, 

 gives three pages of references; Osborn, in Bull. 16, mentioned below, 

 gives a far more lengthy list. I give a few of the early references, paying 

 more attention to the newer publications, since the time of Osborn's paper. 

 From the first, the articles are biological and economic in their scope. The 

 European references are omitted here. 

 destructor Say, Jour. Acad. Sci. Phil., i, 45, pi. iii, f. 1-3; Compl. Works, i, 4.— 



Eastern U. S. 

 Fitch, Amer. Quart. Jour. Ag. and Sci., iv, 244-264, 1846; v, 1-27, 1847; 



revised and republished. Trans. N. Y. State Ag. Soc, 1846, 316-373, i 



pi.; 3d N. Y. Rept., 133-144; 7th Rept., 819-830, pi. iii, f. 2, 3 ; 8th Rept., 



685, note. 

 Packard, Bull. 4, U. S. Ent. Comm. ; full life hist, and figs.; the same 



with additions, 3d Rept. U. S. Ent. Comm., 198-248, pi. iv, v; also in the 



appendix to the third Report is a transl. of an article by Low and 



Wagner. 

 Forbes, 111. Rept, 1885, 14; 1886, 21-34; 1890, 54-63.— 111. and Mississippi 



Valley generally. 

 LiNTNER, 5th N. Y. Rept., 263, notes. 

 Riley, Ins. Life, i, 32, 107, 131, 322; Dept. Agric. Rept., 1891, 235; 1892, 



158; 1893, 211, — various notes on life history, parasites, etc. 

 Marten, Ins. Life, in, 265, notes on habits. 

 Riley and Howard, Ins. Life, in, 306, affecting grasses in Cal. 

 Webster, Ins. Life, vi, 146, general article. 



Lugger, 2d Rept. Ent. Minn. Ex. Sta., 1896, 11-15, good figure. 

 Osborn, Bull. 16, n. ser., Div. of Ent., 1896; full discussion, bibliog., etc. 

 AsHMEAD, Psyche, 1897, 135, parasites. 

 Johnson, Bull. 58, Md. Ex. Sta., 1898, 1 17-122, figs. 

 Marlatt, Farmers' Bull. 132, Dept. of Agric. 

 Fletcher, Rept. Ent. and Bot.. 1898, 173; 1899, 163. 

 Pettit, Bull. 175, Mich. Ex. Sta., 1899, 358; repeated in the Annual Rept. 



for same year, 137. 

 Stedman, 34th Annual Rept. Bd. of Agric. of Mo., 75-86. 

 Hopkins, Bull. 67, W. Va. Ex. Sta., 1900. 

 Lochhead, Bull. 116, Ont. Ag. Coll. and Ex. Sta., 1901. 



