341 



Clem., in the stems of Oenothera biennis (evening primrose) ; Cono- 

 trachelus nenuphar, Hbst. (plum curculio) in unripe peaches ; Zeuzera 

 pyrina, L. (leopard moth) in branches of elm ; Macrosiphum solanifolii, 

 Ashm. (potato aphis) on potatoes and tomatos ; Aphis gladioli, Felt, 

 on corms of gladiolus ; Acijrthosiphon {Macrosiphum) pisi, Kalt. (pea 

 aphis) on pea plants ; the Geometrid, Cingilia catenaria, which was 

 numerous and feeds in the larval stage on sweet fern and bayberry ; 

 Coleophora laricella, Hb. (larch case-bearer) on larch twigs, which 

 should be controlled by lead arsenate sprays ; Eulia pinatubana (pine 

 tube-builder) on white pines in nurseries ; and Bruchophagus funebris, 

 How. (clover-seed Chalcid), for which the early cutting of clover is 

 advocated. 



Large numbers of the cotton moth, Alabama (Aletia) argillacea, Hb., 

 appeared in various localities, evidently migrating northwards from 

 the southern States. Galerucella luteola (elm leaf beetle), which was 

 reported as increasing during 1918, was again abundant during 1919, 

 and trees should be sprayed during 1920 in localities where it is likely 

 to be numerous. Uranotes melinus, Hb. (grey hair-streak butterfly) 

 infested Lima beans ; there are two generations in a year in the Northern 

 States and three in the Southern ; the plants should be sprayed with 

 lead arsenate. Phijllorydes {Lithocolletis) hamadn/adella, Clem, (white 

 blotch oak leaf -miner) discolours the upper surface of the leaves of 

 various kinds of oak. Pupation occurs within the mines in the leaf and 

 there are five or six generations each year in Washington, D.C. The 

 only effective remedial measure known is to gather and destroy 

 infested leaves. An Aphid, Calaphis hetulaecolens, Fitch, was present 

 in great swarms in the winged form in the city of New Haven [R.A.E., 

 A, vii, 479], where it had evidently dispersed from an area covered 

 with grey birches {Betula jwpulifolia), perhaps on account of scarcity 

 of food. Disonycha xanthomelaena, Dalm. (spinach flea-beetle) 

 caused considerable injury to Swiss chard and also feeds upon spinach, 

 beets and pigweed. As poison cannot be apphed to foliage that is 

 used for food, the under-surface of the leaves should be sprayed with 

 strong soap and water or brushed. The adults can be caught like 

 flea-beetles by passing a box lined with tanglefoot over the rows. 



A case is recorded of a house infested with Atropos pulsatoria, L., a 

 species of book-louse. The wood-work, furniture, pictures etc. were 

 washed with hot water and soap, and after some time the insects 

 disappeared. If they re-appear in the spring, fumigation with hydro- 

 cyanic acid gas will be resorted to. 



Lasioderma serricorne, F. (cigarette beetle) caused a serious infesta- 

 tion of tobacco stored in a warehouse. After unsatisfactory attempts 

 with carbon bisulphide the infested tobacco was placed in one room 

 and was heated by steam to 130^ F., at which temperature it was left 

 for five hours. This treatment was apparently quite successful. 



Davis (L W.). Gipsy and Brown-tail Moth Work in 1919.— Co?w. 

 Agric. ExpL Sta., New Haven, BuU. 218, 1920, pp. 135-144, 1 map. 



The brown-tail moth [Nygmia phaeorrhoea^ and the gipsy moth 

 [Porfhetria dispar] have been scarce in Connecticut for the last three 

 or four years, probably owing to natural causes. The number of towns 

 under quarantine has been reduced since the previous year's report by 



