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EwiNG (H. E.). New Species of Economic Mites.— JL Econ. Entom., 

 Concord, N.H., x, no. 5, October 1917, pp. 497-501. 

 The species of mites described in this paper as occurring in the 

 United States, all of which are of economic importance, are as follows : 

 Tetranychus uniunguis, sp. n., on arbor vitae {Thuja occidentalis) ; 

 T. multidigituli, sp. n., on the bark of honey locust [Gleditsia 

 triacanthos) ; ScUzotetmnychus htitarsus, sp. n., on bamboo ; Caligomis 

 mali, sp. n., injuring leaves and branches of apple ; Hypoaspis armatus, 

 sp. n., on lemon leaves ; Tarsonemus paUidvs, Banks, on cyclamen ; 

 Monieziella bipiinctata, sp. n., on the buds of filbert. 



Felt (E. P.). Apple and Thorn Skeletonizer {Hemerophila pariana, 

 Clerck.)— JZ. Econ. Entom., Concord, N.H., x, no. 5, October ] 917, 

 p. 502. 



Hemerophila pariana is widely distributed in New York State, the 

 caterpillars skeletonising the upper surface of the leaves of apple and 

 ha-ui;horn, drawing in a strip on each side and spinning a light web 

 near the centre of the leaf. The work of this moth differs from that 

 of the fall webworm [Hyphantria cunea] by the absence of the 

 enveloping web enclosing one or more leaves. The larvae are found 

 on apple and hawthorn in May, June and August, while caterpillars 

 of various sizes are found on the leaves at the end of September. The 

 caterpillars are easily destroyed by poison and, since they feed upon 

 the upper surface of the leaf, it should be impossible for the insect 

 to become abundant in well-sprayed orchards. 



Baker (A. C). The Reddish-brown Plum Aphis in New York State. — 



Jl. Econ. Entom., Concord, N.H., x, no. 5, October 1917, 

 pp. 503-504. 



These notes are supplementary to a recent paper by Davidson [see 

 this Review, Ser. A, v, p. 408]. It is pointed out that a species of 

 Rhopalosiphum was recorded on a plum tree near Albany, N.Y., as 

 early as 1897. Examination of these specimens, which have been 

 preserved, proves them to be spring migrants of R. nymphaeae. This 

 is probably the earliest record of the plum-feeding habit of this species 

 in America. Specimens have recently been received from Thomasville, 

 Georgia. 



McGregor (E. A.). Scientific Note on Beetles Causing Damage to 

 Cotton in Yuma Valley, Arizona.— JZ. Econ. Entom., Concord, N.H., 

 X, no. 5, October 1917, p. 504. 



Attempts to secure a crop of cotton on 500 acres of ground in 

 Arizona twice ended in complete destruction of the seedlings, owang 

 to the depredations of vast numbers of a beetle, Myochrous 

 longulus, Lee. Search in the soil revealed great numbers of these 

 insects feeding on the under-ground portion of the cotton seedlings 

 and also on the subterranean stems of trailing- mallow {Baccharis sp.) 

 and especially on arrowweed {Pluchea sericea), with which the land 

 had formerly been planted. This plant was infested to such an extent 

 that It seems probable that it is the native host of this pest and that, 

 following Its eradication, the beetles transferred their attentions to 

 the young cotton plants. 



