230 MAINE AGRICULTURAL LxPE:RIMENT STATION. I912. 



cones are moderately long and rather bluntly pointed, and 

 divergent. The cuticular thickenings of the frontal plates from 

 the middle ocellus to eye are flat and scale-like (Figs. 344 and 

 335). The female cauda (Fig. 356) is relatively long and 

 acutely pointed. The upper plate extends a bit beyond the 

 ovipositor and is slender at tip. The male cauda is characterized 

 by the peculiar forceps, the distal part of each arm being broad, 

 thick, hollowed, and hood-shaped. This aspect is shown in Fig. 

 362. 



Lot 1347 Sub 20. Six specimens with data "Brockville, Ont. W. 

 Metcalfe. Oct. 25, 1903 j Oct. 29, 1903; Nov. i, 1903; Nov. 15, 1903." 



■Lot 1348 Sub 85. One female without data. 



Triosa triptinctata (Fitch). 



This beautiful species has attracted some attention on account 

 of its conspicuous occurrence on blackberry bushes. Photo- 

 graphs of the head and wing are given in Figs. 326 and 336. 

 The wing is about 3 mm long. 



L,ot 1342 Sub 2. Nymphs and pupse pellucid and yellowish. Head and 

 prothorax deeper yellow than other parts. Eyes dark red. Mesothorax 

 and metathorax sometimes clear pale green. Wing pads and abdomen 

 pale. In flocculent white fluff on ventral surface of blackberry leaf. 

 Collection at Orono, Maine, Aug. 31, 191 1, comprised both nymphs and 

 imagoes. 



Lot 1342 Sub 4. Pupae and imagoes collected at Sebago Lake, Maine, 

 Aug. 19, 1904, from wild blackberry bushes. 



Lot 1339 Subs I and 2. Two named specimens received from Doc- 

 tor Felt with data "Lot 125. Karner, N. Y. April 15, 1902. N. Y. S. 

 Coll." 



Lot 1339 Sub 13. Specimens with data "Adiron, Mts. Axton, N. Y. 

 12-22 June, 1901. Cornell U. Lot. 235 Sub 34." Nineteen pinned speci- 

 mens with data "Sea Cliff, L. L" 



Lot 1339 Sub 41. One specimen with data "Uhler Nov. 77, D. C. 

 on Pine, Mar. 16, '73. Cornell U. Lot 62. Collected by Theo. Pergande 

 in D. C. and determined by Uhler. Given J. H. C. by Pergande." 



Literature. 



1851 Fitch, Asa. Catalogue Psylla tripunctata. 



1869 Walsh and Riley. Am. Ent. Vol. i, p. 225. Psylla ruhi. 



1879 Thomas. C. 3rd Rept. p. 17 account after Walsh and Riley. 



1880 Fuller, A. S. Am. Ent. Vol. 3, p. 62. Psylla riihi. 



1880 Riley, C. V. Am. Ent. Vol. 3, p. 62. foot note. Psylla 



tripunctata Fitch (P. rubi.) 



