42 Psyche [April 



edge-roll type; rather definite local inrollings (upper side) of leai 

 edge, wall markedly thicker than ordinary leaf, forming definite 

 cavity, galls variable in size, .4—2 cm. long, 3-10 mm. wide, surface 

 smooth, often glaucous, lighter in color than leaf when young, 

 changing to red and finally black when old; abundant, Wrights- 

 ville, N. C. Types in author's collection. 



Pinus. 

 Eriophyes sp. Cecidium nov. Fig. 21. 



21. On Pinus echinata Mill., bud; kataplasma; rosette type; 

 excessive proliferation of stem buds, the leaves either remain massed 

 in the bud condition or develop in a semi-aborted fashion, forming 

 a dense cluster or rosette ; intermediate states are of course found ; 

 not uncommon, S. E. Ohio, North Carolina. Types in author's 

 collection. 



For the first observed material of this form I am indebted to 

 Mr. J. S. Houser of the Ohio Ex. Station. I have repeatedly 

 collected it in North Carolina. In all collections the mites were 

 demonstrated. 



Polygonum. 

 Coleopteron sp. ( ?) Cecidium nov. Fig. 22. 



22. On Polygonum aviculare L. (Bird's Knot Weed), inter- 

 nodal swelling; ovoid enlargement of internode (sometimes involv- 

 ing two internodes), 8-13 mm. long, 3-7 mm. wide, green to red- 

 dish brown, surface more coarsely striate than normal stem ; cham- 

 ber large, same shape as gall, walls firm; few on plant; Mt. Ver- 

 non, Ind. Types in collection of writer. 



This gall was collected by Mr. Chas. C. Deam of Bluffton, Ind. 



Larvffi taken from the galls were tentatively determined as 

 coleopterous by Professor Z. P. Metcalf of N. C. State College. 

 It is to be hoped this insect may soon be successfully reared, for, 

 if it is coleopterous, it will be an interesting addition to the very 

 limited group of gall-making beetles known in America. 



Polygonum. 

 Cecidozoon undetermined. Cecidium nov. Fig. 23. 



23. On Polygonum lapathifolium L., leaf edge-roll gall; kata- 

 plasma; variable in size and shape, often involving leaf to midrib. 



