44 Psyche [April 



never clistally nippled and does iiot slnivel upon drying. The galls 

 remain on the trees for some time after the leaves have fallen and 

 thus are readily observed in the ^\'inter. 



Cynips sp. Cecidium nov. Fig. 27. 



27. On Quercus stellata Wang., leaf petiole; prosoplasma; clus- 

 tered, appendicular; single galls broadly fusiform, angular below 

 through mutual compression, distally round-conic, 4-7 mm. long, 

 3-5 mm. wide, reddish brown, puberulent; larval chamber in fall 

 minute, .25 mm. dia., walls correspondingly thick, firm, fleshy, 

 outer half more deeply colored (tannin bearing) than inner half; 

 not uncommon, Arlington, Tex. Types in collection of writer. 



These galls are most commonly found on the petiole bases of the 

 terminal leaves, where the}^ occur in such masses as to give a strik- 

 ing aspect to the branch end. They dehisce from the trees in late 

 fall, the larva completing its development through the winter and 

 spring. 



Bhus. 

 Eriophyes sp. Cecidium nov. Fig. 28. 



28. On Bhus canadensis ]\Iarsh, leaf ; kata-prosoplasma, diverti- 

 culum type; irregularly rounded j^ocket gall, appendicular, under 

 side, 4-6 mm. dia., green to red, on upper side marked by conic 

 depression filled with trichomes ; chamber highly branched, opening 

 into depression, trichomes not abundant within; not uncommon, 

 Manhattan, Ivans. Types in writer's collection. 



Felt^ mentions a "cylindric poucli gall" on B. trilohata (co/na- 

 densis) from Utah. I have collected this narrow, fusiform type 

 in Kansas. It is sharply and constantly different from the above. 



« Felt, E. p. Key to Am. Insect Galls. N. Y. State Mus. Bull. 200. 1918. 



Solamim. 

 Cecidozoon undetermined. Cecidium nov. Fig. 29. 



29. On Solanum nigrum (L.) bud gall; kataplasma, gall con- 

 sists merely of two highly distorted leaves with their incurled edges 

 tightly appressed, forming a large cavity within. The principal 

 veins are not contorted, this condition being confined to the smaller 

 veins and intervenal tissues which have through slight hyperplasia 

 and hypertrophy grown beyond the normal liuiits of the principal 



