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Walton (W. R). Entomological Drawings and Draughtsmen: their 

 Relation to the Development of Economic Entomology in the 

 United States.— Pwc. Ent. Soc. Washington, D.C.. xxiii, no. 4 

 April 1921, pp. 69-99. 



The limitations of photography, as compared with drawing, even 

 at the present time, are such that well-drawn illustrations play a very 

 important part in entomological work ; in the past this was so little 

 recognised that many of the artists who have done much for entomology 

 are almost forgotten. This paper gives a short account of those 

 draughtsmen who have worked in America. The field of entomological 

 drawing, and the relations that should exist between the artist and 

 the entomologist whose work is being illustrated are also considered. 



Wallace (F. N.). Report of the Division of Entomology.— 



1st Ann. Kept. Indiana Dept. Conservation, 1st April-SOth 

 September 1919, Indianapolis. 1920, pp. 40-53. 



The nursery and import inspection work is reviewed and a list given 

 of Indiana nurserymen. San Jose scale [Aspidiotus perniciosus] was 

 more abundant than for several years, probably owing to the ''mild 

 winter. ^ The importance of the dormant spray against this pest is 

 emphasised ; lime-sulphur should be used at the rate of 1 gallon to 

 5 or 6 of water. Chinch bugs [BJissiis leucopterus] appeared in numbers 

 in wheat and maize fields, doing considerable damage. The central 

 and northern parts of the State suffered from invasions of the army 

 worm [Cirphis unipunda], of which there are two generations annually 

 in Indiana. Hibernation generally occurs in the pupal stage, and the 

 moths emerge in the spring to oviposit on grasses, etc. Wheat, rye 

 and timothy were the crops most seriously attacked. The second 

 generation seldom causes much damage. A parasitic fly destroys 

 very many of the larvae before they reach maturity. 



Wallace (F. N.). Report of the Division of Entomology.— 2«rf Ann. 

 Kept. Indiana Dept. Conservation. Year ending 30th September 

 1920, Indianapolis, 1921, pp. 273-284. [Received 9th May 1921.] 

 Among the most serious pests in Indiana in 1920 were chinch bugs 

 [Bliss us leucopterus], which were more injurious than for many years 

 past. A very successful protection for maize fields is a narrow ridge 

 of straw, 3 to 5 inches wide, laid down between the rows of maize 

 next to infested fields, heavy oil being poured over the straw. The 

 insects cannot cross the straw until the oil evaporates, and if another 

 oiling is given five or six days later, they will all be starved to death. 

 One gallon is sufficient for 25 to 30 ft. of straw barrier. Infested 

 maize should be sprayed with 3 lb. fish-oil soap, 1 U.S. pint Blackleaf 

 40, or li pints nicotine oleate to 50 U.S. gals, of water. The Cocci- 

 nellids, Hippodaniia convergens, Guer., Coccinella novemnotata, Hrbst., 

 H. parenthesis, Say, and Megilla maculata, DeG., were found feedint? 

 on the eggs and on bugs in the first and second stages. Weather con- 

 ditions have been very favourable for the bugs going into hibernation, 

 and unless many die during the winter there will be a very serious 

 outbreak in 1921 . Hibernation frequentlv occurs in grasses and sedges, 

 and along fence rows and ditches at the roots of grasses ; if these are 

 burned over, many will be killed and others will die from exposure. 

 Sometimes the bugs hibernate in numbers in maize husks ; when 

 this occurs, the maize should be husked and the fodder removed and 

 used as soon as possible. 



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