The Ohio ^J^aturalist, 



and Journal of Science 



PUBI.ISHED BY 



The Biological Club of the Ohio State University. 

 Volume XV. DECEMBER, 1914. No. 2. 



TABLE OF CONTENTS. 



Sears— The Insect Galls of Cedar Point and Vicinity 377 



Bartlett— The Native and Cultivated Vioie;e and Phaseolete of Ohio 393 



THE INSECT GALLS OF CEDAR POINT AND VICINITY. 



Paul B. Sears. 



(Department of Botany, University of Nebraska.) 



The following list is based on rather careful collections made 

 during the summer of 1914. Since the list contains many forms 

 €ommon throughout Ohio, I have aimed to make the synonymy 

 fairly complete to date, as an aid to students, while the biblio- 

 graphy has been limited to original description (where possible) 

 and some more recent notice which should be helpful. 



In the course of this work I have become deeply indebted to 

 Mr. W. J. Kostir, of Ohio State University, while Prof. Herbert 

 Osborn, Prof. B. W. Wells, Prof. Myron Swenk, Miss Edith 

 Patch, Mr. Nathan Banks and others have shown me various 

 kindnesses. 



Figure 1. Salix longifolia affected by the mite Eriophyes 

 aenigma. Walsh. 



Cecidomyia salicis-aenigma Walsh. 



Acarus salicis-aenigma Walsh. Proc. Ent. Soc. Phil. 111:608. 



Stebbins, Bull. 2 Springfield Museum: 10. 



Terminal bud-gall, made up of an irregular cluster of yarn- 

 hke masses, each about 1-2 mm. in diameter, the whole 2x3 cm. 

 Whitish tomentose, turning brown and remaining in situ. July. 

 Fairly common. 



Fig. 2. Salix longifolia affected by the mite Eriophyes 



salicicola Garman. 



Phvtoptus salicola Garman. 12th Rep. Ills. Ent. X. 

 Cook, Ins. Cialls Ind.:862. 



Leaf-gall, tiny, globular to irregular, often massed, on either 

 surface of leaf, at times projecting through. .25-3 mm. across. 

 Light green to completely crimson. July. Common. 



377 



