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A. gmndis is now present in the greater part of Georgia, and it is 

 important to grow a variety of cotton adapted to the soil and climate, 

 and to keep to the best improved seed of that variety. If an individual 

 does not improve his own cotton seed by careful selection, it will pay 

 him to buy impro\'ed seed from someone who does. 



MACKINNON (E.). Beneficial versus Injurious Insects. — Science and 



Industry, Melbourne, ii, nos. 8 and 9, August and September 



1920, pp. 473-483 and 549-559. 



The different groups of parasitic and predaceous entomophagous 



insects are described, and an account given of their employment in 



various parts of the world, and particularly in America, as a means of 



controlHng injurious insects. 



IMiLLER (D.). Leaf-stem Gall-aphis of the Poplar.— A^.Z. //. Agric, 

 Wellington, xxi, no. 3, 20th September 1920, pp. 134-135, 2 figs. 



Pemphigus populitransversus, Riley (poplar gall aphis), is here recorded 

 from Central Otago, forming galls on the leaf-stems of poplar trees. 

 This insect is of some interest to agriculturists, as the winged females 

 that appear in the autumn migrate to the leaves of cruciferous plants, 

 such as rape, cabbage, mustard and turnip, and several allied weeds. 

 Their apterous progeny move down and estabhsh a colony on the roots, 

 a fact that might cause considerable loss if the infestation were severe, 

 though normally little damage is done. 



Winged females from the root colonies in the spring return to poplars, 

 where they give rise to the sexual forms, both of which are wingless. 

 Eggs are laid in the bark, and the resulting Aphids form galls on the 

 leaf-stems, in which parthenogenetic reproduction is continued through 

 the summer. 



Fisher (W. S.). U.S. Bur. Entom. A New Genus and several New 



Species of ^Cerambycidae. (Col.) — Proc. Ent. Soc. Washington, 



D.C., xxh, no. 7, October 1920, pp. 153-159. 



The following new Cerambycids are described : — Anoplocurius 



canotiae, gen. et sp. n., from dead branches of Canotia holacantha 



in Arizona ; Callidium pseudotstigae from wood of Douglas fir 



{Pseudotsuga taxifolia) in Cahfornia and Oregon ; C. sequarium taken 



under bark on fallen branches of Sequoia washingtoniana in California : 



and C. jimiperi from under bark oi Jnniperiis sp. in New Mexico. 



Burke (H. E.). U.S. Bur. Entom. Some Notes on the Genus Trachykele 

 with a Description of a New Species (Buprestidae, Coleoptera). — 



Proc. Ent. Soc. Washington, D.C , xxii, no. 7, October 1920, 

 pp. 168-170. 

 Trachykele hartmani, sp. n., is here described from adults and larvae 

 taken in Sargent cvpress (Ciipresstts sargenti) in California. 



Pratt (O. A.). Mexican Army recognises Plant Quarantine.— Af/A/y. 

 Bull. California Dept. Agric, Sacramento, ix, no. 9, September 

 1920, pp. 363-364. [Received 30th November 1920.] 



In view of a movement of troops from Mexico City to the Northern 

 District of Lower California, considerable uneasiness was felt on the 

 part of the cotton interests lest this might be the means of introducing 

 the pink boll worm [Platyedra gossypiella] or the Mexican cotton boll 

 weevil [Anthonomus grandis] into the cotton fields of Imperial Valley, 

 as it was known that the troops were coming from areas in Mexico 



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