1921] Wells — Neiv United States Zoocecidia 43 



roll vpry tight, yellow in color, contrasting strongly with normal 

 part of leaf. Common locally, Ealeigh, N. C. Types in collec- 

 tion of writer. 



In the central region of these galls there constantly occurred a 

 white larva without breast-plate. Whether or not these were merely 

 secondary forms in a possible aphid gall was not determined. 



Quercus. 

 Cynips sp. ( ?) Cecidium nov. Fig. 24. 



24. On Quercus Muhlenbergii Engelm., leaf; prosoplasma; 

 broadly crescentic or banana-shaped, attached laterally and sessile 

 on under side of leaf, tips attenuate, 2.5 mm. long, 1 mm. wide, 

 smooth, light green, cavity large ovoid not extending into tips, 

 wall thin; not common, Manhattan, Kan. One specimen, type in 

 collection of writer. 



Houard describes a similar gall formed on Q. toza of Europe by 

 Trigonospis hruneicornis Tav. This form differs, however, in 

 bearing long, straggling hairs. 



Cynips sp. Cecidium nov. Fig. 25. 



25. On Quercus stellata Wang., terminal twig swelling; kata- 

 prosoplasma ; broadly clavate to ovate, 1-2 cm. long, surface similar 

 to normal twig, bud-bearing, monothalamous with false chamber 

 occurring distal to larval cell and opening exteriorly by constricted 

 orifice, false chamber widest near proximal end, lined with thin 

 layer of hard tissue, larval cell ovoid embedded in woody tissue 

 which consitutes the bulk of the gall ; not common, Arlington, Tex. 

 Types in the collection of writer. 



Amphibolips sp. ( ?) Cecidium nov. Fig. 26. 



26. On Quercus marijlandica Muench. at node (originates from 

 bud meristem) ; prosoplasma, radiate-fiber type; balloon-shaped, 

 1.5-2.25 cm., long axis, green at first, turning yellow when old, not 

 spotted, smooth; larval chamber connected to peripheral zone by 

 relatively few coarse fibers, outer zone or wall very thick (2-3 mm.) ' 

 and of pith-like consistency, not shrinking when old; fairly com- 

 mon, Arlington, Tex. Types in collection of writer. 



The above is comewhat similar to Amphibolips cooki Gillette. 

 It differs in the absence of the red spots, has a thicker wall, is 



