718 



brood of moths began to emerge just previous to mid-August and 

 continued to issue for a period of about one month. Oviposition by 

 moths of the first brood began about mid-August. The hfe-cycle of 

 the first generation occupied 51 days. The average incubation 

 period of the second brood of eggs was 11 days. The average 

 feeding period of the second-brood larvae was 46 days, the female 

 larvae feeding for a longer time than the males. The Braconid 

 parasite, Ascogaster carpocapsae, Vier., was frequently reared. The 

 well-known beetle enemy, Tenebroides coiiicalis,'Meh]i., was commonly 

 found attacking the larvae. The codling moth in Maine may be 

 controlled with one spray thoroughly applied as soon as the petals 

 drop. Arsenate of lead, paste 2 pounds or powder 1 pound, to each 

 50 U.S. gallons of water is recommended. 



Baker (A. C). Early History and Scientific Name of the Woolly Apple 

 Aphis. — JI. Econ. Biol., London, x, no. 3. September 1915, 

 pp. 53-64, 1 fig. 



Eriosoma lanigeniuK Hausm., (woolly apple aphis) is distiibuied 

 over practically the entire apple-growing regions of the world. 

 Evidence seems to show that the pest is of American origin. This 

 conclusion is based on the following facts :^(1) Tradition recounts 

 the importation of the species into Europe from America ; (2) the 

 primary host is the American elm ; (3) the summer generations occur 

 in America on crab-apple, mountain ash and Crataegus, all of which 

 are native trees ; (4) spring migrants must be rare in Europe, judging 

 from records of elm insects. A list of the synonyms of this species is 

 given. 



Eriosoma idmi, L., (European elm-leaf aphis) winters on the 

 elm, forming a curl similar to that of E. atnericamun, and migrates to 

 Ribes in summer. E. americanimi, Kiley, has not been bred from the 

 apple. E. crataegi, Oestlund, migrates from the elm to Crataegus in 

 spring. E. riJegi, Thomas, forms knotty growths on the twigs and 

 trunks of elms ; the migrants are commonly observed in autumn. 

 These seem to be the summer and autunm generations of a true elm 

 species which migrates to other elms in the same way that £^. lariigerun 

 migrates to the apple. 



Meyrick (E.). a New Opogona attached to Sugar-cane. — Entomologist's 

 Mthly. Mag., London, li, no. 617, October .1915, p. 291. 



A description is given of Opogona glycyphaga, sp. n. (sugar-cane 

 bud-moth), bred in June near Brisbane, Queensland. Species of 

 Opogona are numerous in the tropics, about 70 having been recorded ; 

 the known larvae habitually feed on dry vegetable matter, such as 

 dead leaves or refuse, in dry stems or in the interior of the nests of 

 termites. They are liable to be accidentally introduced in the larval 

 state. 



Two Insect Pests. — Botanical Jl., London, iv, no. 3, October 1915. 

 pp. 33-34. 

 Laburnum and lilac trees are attacked by the leaf-miners, Lencojjtera 

 {Cemiostoma) laburneUa, Stn., and Gracilaria syringella, F. The eggs 



