294 The Ohio Naturalist [Vol. XIV, No. 6, 



Tilia americana. Leaf Gall. Gall maker, undetermined. 



A monothalamous, fusiform hypertrophy at the base of the 

 petiole, 10 mm. long, 5 mm. wide. Surface and color same as 

 the normal petiole base. Texture tough, almost wood^^ Cham- 

 ber, elongate, narrow, flattened lying centrally. A single white 

 larva present. Fig. 21. 



Vitis aestivalis. Leaf Gall. Gall maker, an undetemiined insect. 

 A small, monothalamous, sub-cylindric gall, extending both 

 sides of the leaf. Hairy on both sides with reddish brown hairs 

 below, lighter above. 2-3 mm. Walls rather thick. Pupa 

 present July. Not corhmon. Fig 22. Plate II. 



1. AsHMEAD, W. H. A Bibliographical and Synonomical 



Catalog of N. Am. Cynipidte with descriptions of new 

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2. AsHMEAD, W. H. New Cvnipidous Galls and Gall Wasps 



in the U. S. Nat. Mus. "Proc. U. vS. Nat. Mus. Vol. 19: 

 113:136. '96. 



3. Bassett, H. F. Description of several new species of Cynips 



and a new species of Diastrophus. Proc. Ent. Soc. Phil. 

 Vol. 3: 679-691. '64. 



4. Bassett, H. F. Description of several supposed new species 



of Cynips with remarks on the fomiation of certain galls. 

 Proc. Ent. Soc. Phil. Vol. 2; 323-333. '63. 

 .5. Bassett, H. F. New Cynipidae. Can. Ent. Vol. 13: 74-79, 

 92-113. '81. 



6. Bassett, H. F. New Species of N. Am. Cynipidae. Trans. 



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7. Bassett, H. F. New Species of N. Am. CvnipidcC. Trans. 



Amer. Ent. Soc. Vol. 17: 59-92. '90. 



8. Brodie, Wm. Lei^idopterous Galls collected in the vicinity 



of Toronto. Can. Ent. Vol. 41 : 7-8. '09. 



9. Beutenmuller, Wm. The N. Am. Species of Aulacidea 



and their Galls. Amer. Mus. Nat. Hist. Vol. 28, art. 22: 

 253-258. '10. 



10. Beutenmuller, Wm. The N. Am. Species of Aylax and 



their Galls. Amer. Mus. Nat. Hist. Vol. 28, art.' 11: 137- 

 144. '10. 



11. Beutenmuller, Wm. The N. Am. vSpecies of Diastrophus 



and their Galls. Amer. Mus. Nat. Hist. Vol. 2(5, art. 11: 

 135-145. '09. 



12. Beutenmuller, Wm. The N. Am. Species of Ncuroterus 



and their Galls. Amer. Mus. Nat. Hist. Vol. 28, art. 10: 

 117-136. '10. 



13. Beutenmuller, Wm. The N. Am. Species of Dryophanta 



and their Galls. Amer. Mus. Nat. Hist. Vol. 30, art. 15: 

 343-3()9. '11. 



