PROC. ENT. SOC. WASH., VOL. 24, NO. 2, FEB., 1922 45 



(Isosoma) HARMOLITA HAGENI (Howard), U. S. Dept. Agr. Bur. Ent. Bull. 2, 

 Techn. sen, 1896, p. 12. "In quick grass." Boston, Massachusetts. 



HARMOLITA HESPERUS Phillips and Emery, Proc. U. S. Nat. Mus., vol. 55, 

 1919, p. 457. Gall-former on species of Elymus. Holliday, Utah. 



(Isosoma} HARMOLITA HIERONYMI (Schlechtendal), Jahresb. Ver. Nat. Zwickau, 

 1891 (1890), p. 8. Causes a spindle-shaped, more or less bulging yellowish 

 stem gall above second or third node on Festuca g/auca Schrad. Central 

 Europe. 



HARMOLITA HORDEI (Harris). 1 Phillips and Emery, Proc. U. S. Nat. Mus., 

 vol. 55, 1919, p. 452. Gall-former in stems of barley making conspicuous 

 hardened enlargements above the second to fourth nodes. Auburn and 

 Little Falls, New York. 



(Isosoma) HARMOLITA HYALIPENNE (Walker): Schlechtendal, Jahresb. Ver. 

 Nat. Zwickau, 1891 (1890) p. 7. Causes thickening of tops of young shoots 

 of Ammophila arenaria, and through shortening of internodes causes crowd- 

 ing of leaves. Central Europe. 



(Isosoma) HARMOLITA INOUILINUM Rimsky-Korsakov, Mem. Bur. Ent. Sci. 

 Comm. Centr. Bd. Land Admin, and Agr. St. Petersburg, vol. 10, no. 11, 

 1914, p. 19. (Rev. Appl. Ent., ser. A, vol. 2, 1914, p. 471). Oviposit in 

 galls of Harmolita rossicum on wheat, and larvae in first stage attack and 

 kill those of gall-maker, and then finish development phytophagically. 

 Russia: Government of Cherson. 



(Isosoma) HARMOLITA MACALUSOI (Stefani Perez), Marcellia, vol. 7, 1908, 

 p. 148. Produces galls on Sideroxylon sp. with hypertrophy of leaf paren- 

 chyma. Italian Somaliland. 



HARMOLITA MACULATA (Howard): Phillips and Emery, Proc. U. S. Nat. Mus., 

 vol. 55, 1919, p. 449. Inhabits the center of the stem and breeds only in 

 cheat (Bromus seca/inus) and other species of Bromus. United States east 

 of the Mississippi River. 



(Isosoma) HARMOLITA NOXIALE (Portchinsky); Rimsky-Korsakov, Mem. Bur. 

 Ent. Sci. Comm. Centr. Bd. Land Admin, and Agr., St. Petersburg, vol. 10, no. 

 11, 1914, p. 18. (Rev. Appl. Ent., ser. A, vol. 2, 1914, p. 471.) Inhabits 

 center of stems of wheat at third and fourth internodes. Russia: Govern- 

 ment of Cherson. 



HARMOLITA OCCIDENTALIS Phillips and Emery, Proc. U. S. Nat. Mus., vol. 55, 

 1919, p. 466. Makes inconspicuous galls near head of species of Agropyron- 

 Koehler, New Mexico. 



HARMOLITA OVATA Phillips and Emery, Proc. U. S. Nat. Mus., vol. 55, 1919, 

 p. 459. Forms galls on species of Elymus. Wellington, Kansas. 



HARMOLITA PHYLLOTACHITIS Gahan, described beyond. Inhabits center of 

 the stem of young growth of bamboo, Phvllotachys bambusoides. Florida. 



(Isosoma) HARMOLITA POAE Schlechtendal, Jahresb. Ver. Nat. Zwickau, 1891 



'Hedicke, Deutsche Ent. Zeitschr., 1919, p. 205-6 (Rev. Appl. Ent., ser. A, 

 vol. 9, 1921, p. 92), records Isosoma lineare Walker and Isosoma agropyri 

 Schlechtendal as synonyms of this species and states that it infests wheat, 

 rye, and grass. Also states habits vary with food plant. Hedicke has 

 probably confused three different species. 



