34 Bulletin 2: Springfield Museum. 



RANALES. 

 BANUNCULACBAE . 

 ' Clematis virginiana. 

 ?Dasyneura clematidis Felt. Fig. 62. 



Dasyneura clematidis Felt, 23d rept. ins. N. Y. f. 1907, 1908, p. 336, 344, 34:,. 



This gall (possibly of the above species) consists of an elliptical 

 enlargement of the stem, between the nodes, about twice the normal 

 diameter. The inside, pithy and much roughened, looks in places as if 

 eaten or gnawed thin. A round hole is evidently an exit. On wild 

 clematis, Clematis virginiana. 



RO SALES. 



GROSSULARIACBAE. 



Ribes rubrum. 



Myzas ribis Linne. Currant leaf gall. Fig. 63. 



Aphis ribis Linne, Syst. naturae, 17(17. 12th ed., v. ■!, p. 733. 

 Walsh and Riley, Araer. ent., 1869, v. 1, p. 249. 

 Myzus ribis < >estlund, Bull. 4, Geol. ami nat. hist. surv. Minn., 1887, p. 74. 

 Lintner, 9th rept. ins. X. Y., 1893, p. 370-371. 



This gall consists merely of a wrinkling and pouching of the leaf. 

 The insect acts on the under side of the leaf surrounded by the induced 

 pubescence and the tissues increase so rapidly as to make the gall rise 

 above. On currant, Ribes rubrum. Common, sometimes causing damage. 



HAMAMBLIDACEAB. 

 Hamamelis Virginiana. 

 Hamamelisles spinosus Shinier. Spiny witch-hazel gall. 



Hamamelistes spinosus Shimer, Trans. Amer. cut. soe., 1867, v. 1, p. 284-285. 



Pergande, Bull. 9, tech. scries, Div. ent., U. S. dept. agr., 1901, p. 25-44, 

 fig. 12-23. 

 Hormaphis apiitosus Riley, Hull. ('. s. geol. ami geog. surv. terr., 1879, \ , 5, p. 14-15, pi. "2, ri^\ 4. 

 Thomas, 'trans. Dept. 'agr. 111., f. 1878,1879, n. s., v. 8, (Thomas. 3.1 rept. 



ins. 111.), p. -207. 

 Beutenmiiller, Bull. Amer. mns. nat. hist., 1892, v. 4, p. 276, pi. 16, rig. 4; 



Ins. galls viein. X. Y., 1004, p. 37, fig. 

 Cook, 29th aim. rept. Dept. geol. and nat. res. Indiana f. 1004, 1905, p, 847, 



litf . 30. 

 Jarvis, 37th aim. rept. Ent. soe. Ontario, 1906, p. 64, pi. (', fig. 1. 

 Hormaphis papyraceae Oestlund, Bull. 4, Geol. and nat. hist. surv. Minn., 1887, p. 19. 



A monothalamous, globular, spiny gall, which is a deformed fruit bud. 



The opening below, funnel-shaped. Spines long. Green, becoming 



nearly black. Common on witch hazel, Hamamelis virginiana. Pergande 



gives a full account of the life history, with the generations found on the 



birch leaf, in this region on black birch, Betula lento. 



Hormaphis hamamelidis Fitch. AYitch-hazel cone-gall. 



Byrsocrypta hamamelidis Pitch, 4th ann. rept. regents Univ. state of N. V. on state cabinet 



mil. hist.. 1851, p. 69. 

 Hormaphis hdmamelidis Oetert Sack en, Stettin ent. ztg., 1861, p. 422. (Translation bj Walsh, 

 l'roc. Ent. soe. Phil., 1866-1867, v. 6, p. 281.) 



