40 Bulletin 2: Springfield Museum. 



in widest part, tapering gradually to either end. Green, turning brown 

 upon maturity. No distinct larval cells, but inside pithy with borings in 

 various directions. July. 



Oontarinia virginiana Felt. Cherry pocket-gall. Fig. 82. 



Cecidomyia virginiana Felt. -21st rept. ins. X. Y. f. 1905, 1906, p. 130-131. 



Gecidomyid larva, Lintner, Bull. 6, n. s., Div. ent. IT. S. Dept. agr., 1896, p. 57-58; mnu 12th rept. 



ins. N. V.. 1. 1896, 1897, p. 313. 

 Cecidomyia sp., Cook, Ohio nat., 1904, v. 4, p. lie, liy;. 75. 

 Cecidomyia virginiana Jarvls, 37th ami. rept. Ent. soc. Ontario. 1906, p. <',7. 

 Contarinia virginianwe Felt, 23 rept. ins. X. Y. f. 1907, 1908, p. 383, 392. 



A malformation of the fruit. The stone is absent and the fruit en- 

 la l'ged and elongated. 1 cm. long, 5 mm. wide; walls 1.5 mm. thick. 

 Monothalamous. Larvae leave the gall in June or July. On Prunus 

 virginiana, choke cherry, common. In every one of large numbers 

 examined the hole by which the insect left the gall was very close to the 

 insertion of the stem. 



Prunus serotina. 

 Eriophyes serotinae Beutenmiiller. Wild cherry pouch-gall. 



Acarus st rotinae Beutenmiiller, Bull. Amer. inns. nat. hist., 1892, v. 4, p. 27s. pi. 16, tiy. 7: Ins. 

 galls vicin. X. V.. 1904, p. 38, fig. 87. 

 Cook, 29th aim. rept. Dept. geol. and nat. res. Indiana t. Unit. 1905, p. s."is. 

 1iu'. 49. 

 Without scientific name, Buekhout, Proc. Amer. assoc. adv. sci. I. 1882, lss:{, v. 31. p. 475. 



Bagen, Can. ent., 1885, v. 17, p. 27. 

 Eriophyes s< rotinae Jarvis, 37th ami. rept. Ent. sue. < Ontario, 1906, p. t',1 ; probably as Eriophyes, 



sp., <qt. rit., 1907. p. 94. 



A pouch-like gall on upper side of the leaf, the neck constricted, the 

 opening on under side of the leaf. 5-10 mm. long. Green or red. 

 Common on wild cherry, Prunus serotina. 



Eriophyes padi, Nal., of cultivated cherry of Europe, seems identical. 

 Compare C. Houard, Les Zoocecidies des plantes d'Europe, 190S, p. 565. 



Cecidomyia serotinae Osten Sacken. Wild-cherry bud-gall. 



Cecidomyia serotinae Osten Sacken, Trans. Amer. ent. sue. lsTl, v. 3, p. 346-347. 



Beutenmiiller, Bull. Amer. mus. nat. hist., 1892, v. 4, p. 265; Ins. galls 



vicin. X. Y., 19(14. p. 25-26, fig. 

 Cook, 29th aim. rept. Dept. geol. and nat. res. Indiana t. 1994. 1905, p. 838 

 Jarvis, 37th ami. rept. Ent. soc. Ontario, 1906, p. 66. 



Club-shaped, fleshy enlargement of terminal bud, sometimes with one 

 or two leaves growing out. Tip shows end of deformed leaves. About 

 2 cm. long, 1 cm. wide. Bright red becoming brown in fall. Monothala- 

 mous, containing several leaping larvae. Found in May. Common on 

 black cherry. Primus serotina. 



PAPILIONACBAB. 

 Crotalaria sagittalis. 



Cedidomyia? crotalariae, n. s. Rattlebox stem-gall. Fig. 83. 



A fusiform swelling of the winged stem. Orange larvae, sometimes 

 several in one gall. Often eaten into by the larva of Uteiheisa bella (an 

 arctiid moth) which devours the ceeidomyid larvae. On rattlebox, Crota- 

 laria sagittalis. Common. September. 



