582 



as Rhagoletis pomonella. They are the first examples of this species 

 taken in British Columbia ; no sign of larval injury has as yet been 

 observed. Five specimens of this species were collected in southern 

 California in 1894, when they were described as R. zephyria ; since 

 that time, the fly has not been recorded from California, but has 

 been observed in Colorado and on the eastern border of Washington 

 State. 



Chamberlin (W. J.). An Annotated List of the Scolytid Beetles of 

 Oregon. — Canadian Entomologist, London, Ont., xlix, no. 10, 

 October 1917, pp. 353-356. 



This paper completes the list of the Scolytids of Oregon [see this 

 Review, Ser. A, v, p. 527]. The more important of the species dealt 

 with include Phloeosinus dentatus, Say, of which a single specimen 

 Avas collected from Chomaecyparis noothatensis, and P. jmnctatus. 

 Lee, which causes considerable damage to Juniperii.<< occidentalis. 

 These beetles excavate a gallery about 1-2 in. long parallel with the 

 lirain of the wood, the females depositing eggs in recesses on each 

 side, which are sealed up by a wall of frass. The young larvae bore 

 their way out roughly at right angles to the egg-gallery. Eggs, larvae 

 and pupae were all found in May. Apparently all trees of the juniper 

 and cedar group are attacked ; in the mines in juniper, the cocoons 

 of an unidentified Hymenopterous parasite were found. Pseudo- 

 hylesinus nehidosus, Lee, emerges in March and prefers to attack 

 Douglas fir, either living, dying or felled, especially in the sapling and 

 pole stages. When such timber is not available, the limbs of larger 

 trees are selected. A gallery is bored through to the cambium ; the 

 female then works parallel with the grain and the male in the opposite 

 direction. Eggs and larvae occur similarly to those of Phloeosinus 

 punctatus. Pseudohylesinus nohilis, Swaine, and P. Inticollis, Swaine, 

 occur in Abies nobilis, while a very large specimen of Pseudohylesinus. 

 sp. n., has been taken boring in Cedrris leboni. P. griseus, Swaine, 

 and P. sericeus, Mannh., taken on Douglas fir, closely resemble 

 P. nebidosus in their life-history and habits. Pityophthorus pubi- 

 pennis, Lee, occurs abundantly in ash {Fraxinus oregona) and oak 

 {Qiiercus gerryana). Pityogenes carinulatiis, Lee, is found girdling and 

 killing twigs and small branches of yellow pine. A rough, circular 

 chamber is eaten out and from this radiate five to eight short egg- 

 galleries. Adults, yoimg larvae and eggs were all collected in May. 

 Pityophthorus sp. n., similar to P. nitidulus, Mannh., which is found in 

 dying Pinus, has been frequently collected from Abies grandis and 

 A. nobilis. Trypodendron sp. n., near rufitarsis, Kirby, which attacks 

 Pinus contoria, has been collected from Douglas fir. Xyleborus dispar, 

 F,, is recorded in orchard trees in various localities. 



AiNSLiE (C. N.), Notes on the Construction of the Cocoon of Praon. 

 (Hym., Braconidae). — Entom. News, Philadelphia, xxviii, no. 8, 

 October 1917, pp. 364-367. 



It is a well-known fact that Braconid larvae, parasitic on Aphids, 

 attach the dead body of the host to some firm base, such as the leaf 

 on which it had been feeding, in order to secure shelter for themselves 

 during the period of pupation. An exception to this is found in the 



