46 Bulletin 2: Springfield Museum. 



Club-shaped, monothalamous gall terminating twig. 2-3 cm. long. 

 Color of twig. Larval cell elongated. Found in July and later. Not 

 rare. On flowering dog-wood, Cornvs Jiorida. Larvae leave the gall in 

 September or October and enter the ground to transform. Adults emerge 

 during May and June. 



Cornus amomum. 



Ceeidomyia? tuba, n. s. 



On leaf of Cornus amomum. Hemispherical above, about 3 mm. in 

 diameter, projecting like a curved tube beneath, about 8 mm., open at end. 

 Light green below, red-brown above. Bright orange larva. Three galls 

 on each leaf. 



Cornus candidissima. 



Lasioptera corni Felt. Dogwood leaf -gall. 



Lasioptera corni Felt. 22d rept. ins. N. Y. f. 1906, 1907, p. 107; 23d rept. ins. X. Y. f. 1907, 1908, p. 

 318, 324. 



On leaf of Cornus candidissima, projecting slightly on each side, 6-7 

 mm. in diameter, several on a leaf. Light green or yellow in the middle, 

 shading into deep red. Wilbraham, Mass. 



ERICALES. 

 VACCINIACEAE. 

 Polycodium stamineum. 

 Ceeidomyia vaccinii Osten Sacken. Fig. 93. 



Ceeidomyia vaccinii Osten Sacken, in Loew's Mod. dipt. N. A., 1862, pt. 1, p. 196. 



Beutenmuller, Bull. Amer. mus. nat. hist., 1907, v. 23, p. 392, pi. 16, fig. 10-12. 



A cock's-comb shaped gall on the under side of the leaf, on the veins. 

 Green. Opens by a slit when mature, when the larvae leave the gall to 

 transform in the ground. September. South Hadley, Mass. On deer- 

 berry, Polycodium stamineum. 



Vaccinium pennsylvanicum. 



Solenozopheria vaccinii Ashmead. Huckleberry gall. 



Solenozopheria vaccinii Ashmead, Trans. Amer. ent. soc, 1887, v. 14, p. 149. 

 Beutenmuller, Ins. galls viein. N. Y., 1904, p. 22, fig. 



Reniform, polythalamous, twig-gall, concave side attached to the stem. 

 Pithy. Green with sometimes a tinge of red, turning brown and harder in 

 the fall. 2-3 cm. long. Common on blueberry, Vaccinium pennsylvanicum. 

 Insects emerge the following spring. 



OENTIANALES. 

 OLBACEAB. 

 Fraxinus americana. 

 Phylloxera? fraxini n. s. 



A fleshy rounded gall on upper side of the leaflet, opening by a slit on 

 the under side. About 5 mm. in diameter. Green, becoming yellow with 

 red-brown tinge. On white ash, Fraxinus americana. Not common. 



