The Ohio V\(^aturalist, 



PUBLISHED BY 



The Biological Club of the Ohio State Uni'versity. 

 Volume XI. JANUARY, 1911. No. 3. 



TABLE OF CONTENTS. 



OSBORK— Remarks on the Geims Scaphoideus with Revised Key and Descriptiors 



of Xew American Sjjeeies 249 



OsBORN — A New Species of Tinobregmus (Homoptera Jassidae) 261 



Griggs— Phlox Stolonifera Rediscovered in Ohio 261 



OsBORN — Some Reasons why a Natural History Survey is Needed in Ohio 263 



Fink— Notes on a Collection of Boletaceae 267 



Fox— Ohio Grown Rubber, Crop of JiHO 271 



Dickey — Meeting of the Biological Club 272 



REMARKS ON THE GENUS SCAPHOIDEUS WITH A 



REVISED KEY AND DESCRIPTIONS OF NEW 



AMERICAN SPECIES. 



Herbf;rt Osborx. 



Since the publication of my paper on this genus in 1900* there 

 have been a number of other species described, and I have secured 

 records of distribution which considerably increase the range for 

 a number of the older species, and moreover have recently obtained 

 material which adds to these records, so that it appears to be an 

 appropriate time to review the work presented in that paper. 



At the time the paper was written the genus seemed to be 

 quite strictly American and with the exception of a species 

 clescribed from the West Indies, vSt. Vincent Id., by Professor 

 Uhler, the range of the genus being distinctly Nearctic. A species 

 described from Japan, and more recently the description of two 

 other species from the Palcarctic region shows that the genus has 

 a wider range and would indicate for it a greater antiquity. Of 

 the species which have been described as American since my 

 previous paper on the genus, three are distinctly western, one 

 distinctly eastern, and one southern or southeastern in range. 

 Four species apparently new are described in the present paper. 



But little has been added with reference to the life histories 

 of the species, and in general the habits of the species are such 

 that observations upon the life histories seem not to be verv 

 readily made. Considering the accessibility of my earlier paper 

 it is deemed unnecessary to repeat descriptions or bibliographv. 



'' The Genus vScaphoideus, Jour. Cine. Roc. Nat. Hist., \"ol. XIX, pp. 

 1S7-209. (June, 1000.) 



249 



