4M? BIOLOGICAL STKVKY OF 



Anachakis Dalman 



A. sp. Pars, on the ''lace wings," July 8. 



Callaspidia Dahlbom 



C. provancheri Asliin. S. W. Harbor, July 30. 



Andricus Hartig 



A. singularis (Bass.). "Small oak apple gall." Bar Har- 

 bor; Salisbury Cove, Aug. On leaves of the red oak. 



Callirhytis Forster 



C. operator (O. S.) Acorn gall. Robinson Mt., Sept. 7. The 

 gall is an oval larval cell between the nut and cup of the 

 acorn. On the scrub oak (Quercus ilicifolia). The agamic 

 generation. 



C. scitulua Bass. Salisbury Cove; Bar Harbor. Irregular 

 wood terminal swellings on the red oak (Quercus rubra). 



C. tuberosua Bass. Robinson Mt. Irregular wood galls on 

 the scrub oak. 



C. tumifica 0. S. Midrib tnmor gall on oak. Common. Salis 

 bury Cove X Emery Dist. 



Amphibolips Reinhard 



A. inaxis (0. S.). Empty oak gall. Bar Harbor, Aug. 6. On 

 the leaves of the red oak. Bred from Quercus borealis July. 



Diastrophus Hartig 



D. tfrgidus Bass. Forms a gall on raspberry. Bred May 

 23 (Br.). 



Aylax Hartig 



A. glechomae (Linn.). Cat-mint Gall. A globular gall on 

 Nepeta glechoma. Great Head, Aug. '35. 

 Genus near the above. Bred from a gall on a herbaceous 

 plant, July 5. 



