9 DIPTERA HYMENOPTERA 1 131 



Injury Larva causes a spindle-shaped thickened gall on leaf vein, green or reddish, 



length 1 cm., diameter 2 mm. 

 Distribution Eastern United States. 

 Reference Felt, E. P. New York State Mus. Bui. 200 : 138. 1918. 



(Figs. 120 and 121, page 1034.) 



HYMENOPTERA 



betuleti Klg., Trichiosoma Fam. Tenthredinidae 



Synonyms Cimbex crataegi Wd., Trichiosoma tibialis Steph. 

 Host Crataegus. 

 Injury Larva eats foliage. 

 Distribution Europe. 

 efer nces Kaltenbach, J. H. Pflanzenfeinde, p. 211. 1872. 



Andre", Ed. Species des Hym<nopteres d'Europe, 1:27. 1879. 



cerasi Linn., Caliroa (Pear and cherry slug) Fam. Tenthredinidae 



Hosts Prunus, Crataegus, Pyrus. and other species. 



Injury Larvae skeletonize leaves. 



Distribution Europe, North America, Australia. 



References Slingerland, M. V., and Crosby, C. R. Manual of fruit insects, p. 214. 



1914. 

 MacGillivray, A. D. Hymenoptera of Connecticut, p. 79. 1916. 



collaris MacG., Profenusa (Cherry and hawthorn sawfly leaf miner) . . . .Fam. Tenthredinidae 

 Hosts Crataegus, Prunus cerasus. 

 Injury - Larva mines in leaf, causing brown blister which may cover from a quarter 



to the whole of the upper surface of the leaf. 

 Distribution Massachusetts, New York. 



Reference Parrott, P. J., and Fulton, B. B. New York (Geneva) Agr. Exp. Sta. 

 Bui. 411. 1915. 



druparum Boh., Syntomaspis (Apple seed chalcid) . . . .Fam. Chalcididae 



Hosts Malus, Pyrus, Sorbus, Crataegus. 



Injury Oviposition punctures cause dimples in fruit, and larvae destroy seeds. 



Distribution Europe, North America. 



References Schlechtendall, D. von. Ztschr. Naturwiss. Halle 61 : 415. 1888. 



Cushman, R. A. Journ. agr. res. 7:487. 1916. 



Woodruffe-Peacock, E. A. Naturalist (London), no. 753, p. 329. 1919. 



flaviventris Retz., Lyda Fam. Tenthredinidae 



Synonym Lyda clypeata Klg. 



Hosts Crataegus, Pyrus. 



Injury Larvae defoliate branches, feeding in colonies. 



Distribution Europe. 



References Kaltenbach, J. H. Pflanzenfeinde, p. 206. 1872. 



Andr6, Ed. Species des Hyme"nopteres d'Europe, 1 :516. 1879. 



humeralis Fourc., Cimbex Fam. Tenthredinidae 



Synonym Cimbex axillaris Pz. 



Hosts Crataegus, Prunus padus. 



Injury Larva feeds on foliage. 



Distribution Europe. 



References Kaltenbach, J. H. Pflanzenfeinde, p. 212. 1872. 



Andr6, Ed. Species des Hyme"nopteres d'Europe, 1 : 24. 1879. 



