BRIEFER ARTICLES. 



PINE-CONE WILLOW GALL ABUNDANT. 



BY ALFRED C. BUBBILL. 



There is marked abundance of the Pine-Cone Willow Gall 

 (Cecidomyia strobiloides O. S.) in the region west of Milwaukee. 

 On a 236-mile ride on horseback through the counties of Mil- 

 waukee, Waukesha, Dodge, Green Lake, as far as Marquette, it 

 seemed as if no considerable group of roadside willows had 

 escaped the work of this Cecidomyid, especially in brook valleys 

 where the willows most occur. Several times I noted that nearly 

 every other twig bore a gall, equalling the remarkable picture of 

 these willow galls published by Dr. M. T. Cook in his "Insect 

 Galls of Indiana" (Ind. Dept. Geol. & Nat. Res. 29th Ann. Rep. 

 1904, p. 84, fig. 33), and surpassing any occurrence I have noted 

 in tramps about New York or points in Maine, Massachusetts or 

 Pennsylvania. 



GRAPE-VINE FILBERT GALL. 



BY ALFRED C. BURRILL. 



On the Frost or Chicken Grape (Vitis cordifolia Michx.) 

 vines on the south shore of Lake Puckaway, Marquette Co., Wis., 

 the only point on the above route at which it was observed among 

 the hundreds of grape vines passed, I was pleased to find several 

 clusters of the Grape- Vine Filbert Gall (Cecidomyia coryloides 

 Walsh) together with a beautiful scarlet spot gall. The latter 

 arrived in such poor condition from the ride that it was uniden- 

 tifiable when submitted to Mr. Wm. Beutenmiiller of the Ameri- 

 can Museum. At the time of finding this gall, Sept. 3, 1909, 

 these clusters, the individual members of which are shaped more 

 or less like crowded Grape-Vine Apple Galls (C vitis-pomum 

 Walsh and Riley), were still so like the green of the leaves, in 

 contrast to the bright-hued grape clusters, that the galls easily 

 pass unnoticed. It is quite possible, therefore, that a few other 

 occurrences may have escaped my notice among the many road- 

 side grapes passed. I judge it is of uncommon occurrence, as I 

 find no account of it in the eastern lists of Cecidomyidae nor in 



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