193 



Barber (G. W.). U.S. Bur. Ent. Leafhoppers injuring Woodbine. 

 —Jl. Econ. Ent., Geneva, N.Y., xiv, no. 6, December 1921, 

 pp. 502-503. 



The leaf-hoppers, Erythroneura conies, Say, and E. vulnerata, Fitch, 

 and their varieties, are recorded as injuring American woodbine 

 (Ampelopsis and Parthenocisstts) in Eastern Massachusetts during 1920 . 

 Sprays are only of use where the lower surface of the leaves can be 

 reached ; in these cases soap or nicotine solutions are advocated. Satis- 

 factory results have also been obtained with a strong spray of water 

 applied at intervals under considerable pressure and directed towards 

 the underside of the leaves. 



JoHAXNSEN (O. A.). A Seed Potato Maggot {Hylemyia irichodadyla, 

 Rondani).— //. Econ. Ent.. Geneva, N.Y., xiv, no. 6, December 

 1921, pp. 503-504. 



The Anthomyiid, Hylemyia [Phorbia] trichodactyla, Rond., is recorded 

 as injuring seed potatoes in Maine. This fly is widely distributed and is 

 fairly common in the United States, but has probably frequently been 

 mistaken for H. cilicrura, Rond. [H. fusciceps, Sling, nee Zett.) (seed- 

 corn fly). The distinguishing characters of the larvae of H. tricho- 

 dactyla, H. cilicrura, H. antiqua and H. brassicae are described. 

 The author is of opinion that the genera CJiortophila {Phorbia), 

 Hylemyia, sens, sir., and the black-legged species of Pegomyia, should 

 be included under the generic name of Hylemyia until further knowledge 

 has been obtained of these closely related genera. 



EssiG (E. O.). The Argentine Ant builds earthen Protections £or 



Mealy Bugs. — //. Econ. Ent., Geneva, N. Y., xiv, no. 6, December 

 1921, pp. 506-508, 1 fig. 



In controlling mealy-bugs and other Coccids in California, the 

 presence of the Argentine ant, Iridomyrmex hnmilis, Mayr, is a factor 

 that must not be overlooked. The various means by which it protects 

 Pseudococcus citri, Risso, P. bakeri, Essig, and P. citrophilus, Claus., 

 are described. 



Thompson (B. G.). U.S. Bur. Ent. A Home Made Mechanical 

 Poison Bait Mixer. — Jl. Econ. Ent., Geneva, N. Y., xiv, no. 6, 

 December 1921, pp. 508-509, 1 fig. 



The machine here described was successfully used during the grass- 

 hopper eradication campaign in Oregon in 1919. It is constructed on 

 the principle of a churn, and consists of a wooden box 40 in. X 40 in. X 

 48 in., moimted on a IJ in. shaft, with a wooden pulley 42 in. in 

 diameter fastened firmly to the end of the box. The box is con- 

 structed of 1 J in. tongued and grooved timber. One half of the side 

 is used as a door, thus giving ample room for inserting the materials 

 and taking out the bait. The edges of the door are felted to prevent 

 leakage. No paddles are required inside the box, as the falling of 

 the materials from one corner to another, while the box revolves, 

 thoroughly mixes the bait. 



It wdll hold 100 lb. of bran at a time, and the mixed bait is easily 

 removed, as there are no paddles or other obstructions. 



