220 Maine; agricui^tural kxperime;nt station. 1912. 



1881 Ashmead,- Wm. H. Can. Ent. Vol. 13, p. 222. Listed. 



1890 Packard, A. S. Forest Insects, p. 417. Listed. 



1893 Riley, C. V. in Lintner IX, p. 411, "Probable var. carpini." 



J894 Mally, C. W. Pro. lov/a Acad. Sc, Vol. 2, p. 153. Liste;d. 



Fig. 4 Plate 16. 



1906 Felt, E. P. Woodland Trees II, p. 728. 



1909 ('10) Smith, J. B: Insects of N. J., p. 109. Listed. 



Psylla negundinis Mally. 



This species is certainly closely allied to annulata Kitch and 

 the differential characters seem difficult to define. Mally, how- 

 ever, does not mention nor figure the antennal stripes charac- 

 teristic of annulata as being present in negundinis and the 

 pinned material in the collections at hand of this species do not 

 show annulated antennae. Figures 393, 409, and 420 picture 

 the head, wing and forceps of this species. 



Me. 1339 Sub 46. Two specimens with data "Colo. 1605. Cornell U. 

 Lot. 157. Sub 35. Received by exchange from Carl F. Baker." 



Me. 1348 Sub II. One female with data "Colo. 1981. 9-2-95. Ft. Col- 

 lins C. P. G.," and one female with data "Colo. 1769, 9-26-94. C. F. B. 

 Et. Collins, on Box Elder." 



Me. 1348 Sub 18. Five specimens with data "Colo. 1979. 9-31-95 Ft. 

 Collins C. P. G. on Box Elder," and one specimen with data "Colo. 

 1769. 9-26-94. C. F. B. Ft. Collins. On Box Elder." 



Me. 1348 Sub 24. One male with data "Colo. 191 5. 7-5-94. Santa 

 Ee. N. M., T. D. A. Cockerell." 



Literature. 

 3894 (189s) Mally, C. W. Proc. Acad, of Sci., Vol. 2, p. 155. 

 Psylia breviata n. sp. 



Three females with data "Ottawa, Ont. Dows Swamp. 14- 

 YI-1903 W. Metcalfe" comprise Me. 1347 Sub 36. The host- 

 plant is not yet known. 



This species comes close to annulata and negundinis both in 

 wing and cauda of female. The antennae are short, joints 3 to 

 10 inclusive being subequal to width of cephalic aspect of head 

 ■across the eyes. The frontal cones are rather straight at their 

 medial margin but curved along the lateral edge. The head, 

 wing and cauda are given in figures 397, 405, and 424, and will 

 serve to make the species recognizable until enough ecological 

 information is obtained to make this species deserving of more 

 attention. 



