412 



JOURNAL OF ECONOMIC ENTOMOLOGY 



[Vol. 3 



* Colopha ulmicola Fitch: {eragrostidis Midd\.)Ri\ey, Bull. U. S. 

 Geol. and Geog. Surv., Vol. 5, No. 1, (1879), p. 9; Patch, Bull. Me. 

 Agr. Expt. Sta. No. 181 (1910), p. 196, 11 figs. A very common 

 species. The galls are often so abundant on elms as to give the trees 

 an unsightly appearance. As Miss Patch has recently pointed out, 

 C. eragrostidis Middl. is doubtless a synonym of C. ulmicola Fitch, 



* Schizoneura ammcana .Riley: Ball. U. S. Geol. and Geog. Surv. 

 Vol. V, No. 1 (1879), p. 4, figs. A common pseudo-gall-maker on elm 

 and not infrequently injuriously abundant. 



*>S. caryce Fitch: 3rd Rept. Ins. N. Y. (1856), p. 443. This species 

 is unknown to the writer. First reported by Fitch. 



S. corni Fabr.: Oestlund, Bull. Geol. and Nat. Hist. Surv. Minn., 

 No. 4 (1887), p. 28. This is a common species on Cornus sanguinea 

 et spp. throughout the state. First reported by Walsh under the 

 name cornicola Walsh. 



S. cratcegi Oestl.: Bull. Geol. and Nat. Hist. Surv. Minn., No. 4 

 (1887), p. 27. A serious pest of the hawthorns used in ornamental 

 plantings in Chicago, being especially common on Cratcegus crus-galli. 

 First reported by the writer. 



ON CRATMGUS, SEPT., 1909. DUNNING, ILL. 



Antennal 

 segment 



III 



IV 



V 



VI 



0.4075 

 0.1222 

 0.1385 

 0.1141 



Measurements in mm. 



0.4075 

 0.1141 

 0.1304 

 0.1141 



0.3993 

 0.1141 

 0.1304 

 0.1141 



0.4075 

 0.1222 

 0.1385 

 0.1141 



0.4075 

 0.1222 

 0.1385 

 0.1141 



0.4156 

 0.1141 

 0.1385 

 0.1141 



0.4156 

 0.1222 

 0.1385 

 0.1141 



0.4075 

 0.1141 

 0.1304 

 0.1141 



S. lanigera Haus.: Gillette, Jour. Econ. Ent., Vol. I (1908), 

 p. 306, colored and other figs. A common and destructive apple pest 

 throughout the state. First reported by Thomas. Antennal measure- 

 ments given below for comparison with S. cratrngi. 



ON APPLE IN GREENHOUSE, URBANA, ILL., 18 NOV., 1907. 



