90 



by Bassett from Conuecticut and Long Island material in 1881. It has 

 since been rejiorted fiom New Jersey by Smith and the writer has col- 

 lected it in Ohio. 



Aa'^deictjS siisrGirLARis Bassett. 



Cynips quercus-singuluris — 



Bassett. Proc. Entomol. Soc. Phil. \ol. II. 1863. p. 320. 

 Cynips singula ris — 



Osten-Sackeu, Proc. Entom. Soc. Phil. Vol. IV. 1865, p. 355. 



Walsh, Amer. Ent. Vol. II. 1870. p. 184. 



Osten-Sacken, Trh Kept. U. S. Geol. & Geog. Sur.-Zool. 1873 & 74. p. 507. 

 Andricus singularis — 



Bassett. A.mer. Nat. Vol. XVI. p. 246. 



Mayr, 20 Jahresber. Comm : Oberrealsch. I. Bes. 1881. p. 28. 



Ashmead, Trans. Amer. Entomol. Soc. Vol. XII. 1885, p. 295. 



Gillette, 27th Ann. Agri. Rpt. of Mich. 1888, p. 469. 



Gillette, Psyche Vol. V. 1889. p. 186. 



Gillette, Proc. Iowa Acad. Sci. Vol. I. Pt. 2. 1890-91. pp. 110-114. 



Packard, 5th Rpt. U. S. Ent. Com. (Forest Insects) 1890. p. 105. 



Beutenmiiller, Bui. Amer. Mus. Nat. Hist. Vol. IV. No. 1. 1892. p. 256. 



Dalla Torre, Cat. Hymen. ( Cynipidae ) Vol. II. 1893. p. 100. 



Smith, N. J. State Bd. Agriculture. 1899. 



Beutenmiiller, Amer. Mus. Jour. Vol. IV. No. 4. 1904. p. 15. 



This gall is formed in the spring and early summer, is spherical, green 

 and varying from % to 14 -inch in diameter. The larval chamber is oblong 

 and is held in its place by radiating fibers. The outer covering is smooth 

 and thin. It is so placed in the leaf that 2-3 project below the lower 

 surface and 1-3 above. It very much resembles Amphibolips inanis O. S. 

 except that it is smaller. It has been reported by Bassett from Connecti- 

 cut and has since been reported from New York, New .lersey, Iowa, Michi- 

 gan. The writer has also collected it in Ohio. The reports thus far indi- 

 cate that it is restricted to Querciis rubra. 



(Note. — The gall described by me in Insects galls of Indiana. 29th Rpt. 

 of the Dept. of Geol. and Nat. Res. of Indiana 1904, p. 836. as Holcaspis 

 centricola O. S. was an error and should have been described as A. sin- 

 gularis Bassett.) 



