545 



trees, a? well as medlars, which grow there wild, are much selected by 

 Eiiproctis chrysorrhoea for oviposition and their foliage is frequently 

 destroyed in spring in consequence. Euonymus europaeus (dog wood), 

 suffered during the spring of 1914 from the caterpillars of Hyponomeuta, 

 euonymellus, Scop. 



QuAiNTANCE (A. L.). Remarks on some Little-known Insect Depre- 

 dators. — Science, Philadelphia, xli, no. 10G8, 18th June 1915, 

 p. 916. 



A species of Jassid, Typhlocyba obliqua, is at the present time 

 seriously destructive to apples in parts of the Ozark mountain region 

 a]id in Kansas. The insects occurred abundantlv on the lower side 

 of the leaves, causing the foliage to drop, with subsequent injury to 

 the fruit crop. A Microlepidopteron, Marmara sp., was reported to 

 have caused injury in apple orchards in Virginia. The larva makes 

 long tunnels under the skin, resulting in the decay of the fruit. 

 The stick insect, Diapheromera femorata, occasionally becomes a pest 

 in orchards which are adjacent to woodlands. A Chrysomelid beetle, 

 Rhabdopterus picipes, feeds in the larval state on the roots of cran- 

 berry. Observations on this insect show that it is restricted to 

 cranberries growing in fairly high, sandy soils. The Pentatomid bug, 

 Nezara hilaris, has recently become destructive to peaches in northern 

 Ohio. The larva of the Longicorn, Parandra brunnea, frequently injures 

 the heart wood of old apple trees, with the result that the trees are 

 often blown over by the wind. A new midge pest, Contarinia johnsoni, 

 has, during recent years, become well known on account of its injiu:y 

 to grapes. The adults deposit from 10 to 70 eggs in the flower buds, 

 many of which are thus destroyed by the larvae. 



CoAD (B. K.). Relation of the Arizona Wild Cotton Weevil to Cotton 

 Planting in the Arid West. — U.S. Dept. Agric, Washington, D.C., 

 Bull. no. 233, 27th May 1915, 12 pp., 4 plates. 



Cotton culture was introduced into Arizona under irrigation con- 

 ditions. It was hoped that the estabhshment of important insect 

 pests could be prevented by quarantines, and this was rendered possible 

 by the complete isolation of the new territory. It has been fouiid, 

 however, that Anthonomus grarulis thurberiae, nearly identical with 

 Anthonomus grandis, Boh. (the Mexican cotton-boll weevil), occurs 

 on Thurberia thespesioides, a wild cotton plant so closely related to 

 cotton that some investigators have placed it in the genus Gossypium. 

 The plant seems to be particularly concentrated in the mountain 

 ranges surrounding Tucson. The weevil may transfer its attacks 

 to cultivated cotton in the Santa Cruz and Rillito Valleys at an early 

 date. Its present habits are such that it would not greatly injure 

 cotton, but a change to more injurious habits is probable. At presenfc 

 this weevil does not emerge in autumn, but remains sealed up in a cell 

 formed in the midst of the seeds in the boll and passes the winter in 

 this condition. In the spring, instead of becoming active with the 

 first warm weather, as the cotton weevil does, the greater number of 

 them remain sealed in the cell until the rains late in the summer, 

 many not emerging until August. This is simply a case of prolonging 



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