30 Bulletin 2 : Springfield Musecm. 



Neuroterus vesiculus Bassett. 



Cynips vesiculus Bassett, Can. ent., 1881, v. 13, p. 97-95. 



Neuroterus vesicula Bassett, Amer. nat., 1882, v. 16, p. 246. 



\ , urott rus vesiculus Packard, 5th rept. U. S. ent. comm., 1890, p. 107, 109. 



A monotholamous, subglobular gall appearing late in the fall in the 

 center of a bud at or near the tip of the twig. Slightly corrugated, with 

 a small projecting tip. Of the color of the bud. Cell comparatively 

 large. Develops rapidly in the following spring. On white oak, Quercus 

 a Ilia. Rare. 



Cynips? sp. 



A monothalamous cynipid gall is common on the under side of the 

 leaves of the white oak, occurring singly. It is spherical, covered with 

 dense pubescence. Color yellow, often with a rosy tinge. Diameter 3-8 

 mm. Falls to the ground during the last half of September. (This gall 

 resembles closely that of Cynips priuoides Beutenmuller, which occurs on 

 Quercus prinoides, but the latter usually is on the upper surface of the 

 leaf.) 



Quercus platanoides. 



Cynips strobilana Osten Sacken. See p. 28. 



Halcaspis duricoria Bassett. Pointed bullet-gall. Fig. 53. 



Holcaspis dumcoria Bassett, Trans. Amer. ent. soc, 1890, v. 17, p. 64-65. 

 Bassett, Amer. nat., 1882, v. 16, p. 246. 

 Gillette, Psyche, 1889, v. 5, p. 1ST. 



Beutenmuller, Bull. Amer. mus. nat. hist., 1892, v. 4, p. 261, pi. 12, fig. 5. 

 Jarvis, 37th aun. rept. Ent. soc' Ontario, 1906, p. 71. 



Globular with short point at apex. Somewhat rough, woody, mono- 

 thalamous galls. Larval cell oval with rather thin shell. 10-15 mm. in 

 diameter. Yellow with tint of red, turning brown when mature. Singly, 

 or in groups, on twigs of swamp white oak, Qxiercus jrfatanoides. Insects 

 emerge in November. 

 Neuroterus Jloccosus Bassett. Oak flake-gall. 



Cynips floccosa Bassett, Can. ent., 1881, v. 13, p. HI. 

 Xeuroterus fiocrnxii s Bassett, Amer. nat., 1882, v. 16, p. 246. 



Ashmead, Trans. Amer. ent. soc, 1885, v. 12, p. 296. 



Beutenmuller, Bull. Amer. mus. nat. hist., 1892, v. 4, p. 262, pi. 12, flg. 2; 

 Ins. galls vicin. N. V., 1904, p. 22, flg. 



Jarvis, 37th aim. rept. Ent. soc. Ontario, 1906, p. 71. 



Hemispherical, hairy monothalamous galls on under side of leaf. 

 Found in numbers. Upper side of leaf reveals their presence by smooth 

 blister-like projections. About 3 mm. in diameter including hairs. Hairs 

 white. On swamp white oak, Quercus platanoides. Insects emerge in 

 the succeeding spring. 



Neuroterus noxiosus Bassett. Noxious oak-gall. 



Cynips noxiosa Bassett, Can. ent., 1881, \ . 13. p. 108. 

 Neuroterus noxiosus Bassett, Amer. nat., 1882, a-. 16, p. 246. 



\shinratl, Trans. Amer. ent. SOC, 1885, v. 12, p. 296. 



Gillette, Psyche, 18S9, v. 5, p. 187. 



Packard, 5th rept. V . 8. ent. comm., 1890, p. 107. 



Beutenmuller, Ins. galls vicin. N. v., 1904, p. 21, li^. 42. 



