66 Journal of the Mitchell Society [August 



THE PECAN TWIG GIRDLER. 

 C. L. Metcalf. 



A detailed account of the egg-laying habits of Oncideres cingulata Say. 

 The preliminary and supplementary maneuvers habitually performed 

 (which result in the severing of numerous twigs from the tree in which 

 the eggs are laid) ; with a brief account of the life-history, economic 

 importance and methods of control of the pest in commercial pecan 

 orchards. 



A ROUGH METHOD OF RECORDING SEASONAL 

 DISTRIBUTION. 



C. S. Brimley. 



The method I am about to describe is not meant to take the place of 

 full records or complete data with regard to any group of living things 

 in which one is particularly interested, tut rather to provide a conven- 

 ient means of summarising such records and also to record data con- 

 cerning animals or plants in which one is less interested and therefore 

 is not likely to take much trouble about. 



The method is briefly this, rule the left-hand pages of a blank book 

 into 12 vertical columns, leaving enough space on the left for the names 

 of the species to be recorded, and leaving the right hand page blank for 

 any additional data. At the head of these twelve columns write the 

 abbreviations, Jan., Feb., Mar., Apl., May., Jun., Jly., Aug., Sep , Oct., 

 Nov., Dec, and when you have a record to make of a species, record it 

 by the appropriate letter of the month in the column for that month, J. 

 standing for early January, a for middle January, n for late January 

 and so on, "early" signifying from the first to tenth inclusive, middle for 

 from eleventh to twentieth, late from twenty-first to end of month. 



I have hundreds of species of insects recorded in this way and the rec- 

 ords are both easy of access and very serviceable when one wishes to 

 find at what period of the year any particular insect is likely to occur. 

 Of course, separate records could be kept for each year and should, of 

 course, be kept for different localities, but as a matter of course such a 

 system would necessarily come into use mainly for the locality in which 

 one spends the greater part of one's time. 



SOME RARE PLANTS AND SINGULAR DISTRIBUTIONS IN 

 NORTH CAROLINA. 



W. C. COKER. 



Announcement was made of the addition of a new tree to the flora 

 of North Carolina. The Pin Oak (Quercus palustris DuRoi.) was found 

 near Chapel Hill by Mr. J. S. Holmes, State Forester, in the fall of 1913. 



Rhododendron catawbiense Mjichx., supposed to be confined in this 



