770 EXPERIMENT STATION RECORD. 



and Anopheles frequently rest with the third pair of legs lifted awa}' 

 from the support. The authors noted that the legs of ^1. claviger were 

 stretched out with the tarsi pointing downward, while those of certain 

 species of Culex were curved upward. The habit of resting, with the 

 body at a very wide angle to the substratum, was noted in A. i}><endo- 

 jylvtus. In ^1. .^uperplduff the resting po.sition was the same as in A, 

 claviger. The authors state that the resting attitude of these mos- 

 quitoes can not be used for the purpose of distinguishing the genera 

 Culex and Anopheles, but may furnish characters for scpai'ating 

 species of Anopheles. 



Notes on insect pests from the entomological section, Indian 

 Museum, E. Baklow {[ndhin JLis. X<>f,.'<, J {1000), Ao. 1. pp. llf-JIf., 

 ph I). — Serlca asscmbensis is reported from x\ssam as destructive to tea 

 plants. The author gives a brief description of this beetle. The 

 insect occurs in large numbers and conunit^ serious depredations upon 

 tea plantations. Experiments conducted by tea raisers indicate that 

 ordinary insecticides are not verj' effective against this beetle. ILfe- 

 ru.'ila cingala depredates upon the tea plant. A Tachinid parasite, 

 Exorista heteruMce^ was 1)red from this insect. 



Ilisjya (snescens is reported as destructive to rice crops. The insect 

 makes its appearance in June and Juh'. It attacks first the leaves and 

 later the heads. Epocroinia dorsal is is reported as an enemy to the 

 3'oung wheat crop in Bomba}^ and other parts of India. Hieroglyplius 

 furcifer is another grasshopper which is said to be verj^ injurious to 

 rice and grass crops. 



Brief economic and biological notes are given on the sorghum borer 

 moth ( Ghilo simplex) and HeliotMs armigera. 



Detailed tables are given showing the amount of damage done by 

 locusts, especially by Acridiurn p^eregrinum; and brief accounts of 

 injects injurious to mango trees, grapes, teak trees, and sal trees. 



Experiments in rearing the San Jose scale, L. Reh {Bot. Mus. , 

 Ahf. J[ii,irizri,xi'lnttz^ Hajulnwg. 2 {ISU'J- lOOO). p>p. 21, jig. i).— In ordei* 

 to rear the San Jose scale upon American apples, it is necessary to 

 have sound, fresh apples which will remain fresh until after the repro- 

 ductive period of this insect. Beside these conditions, a suitable tem- 

 perature nmst be maintained. The author made observations upon 5-1 

 larvae which were reared from San Jose scale upon apples. These 

 hirvffi issued in May, June, July, and August, The greater numl^er 

 of them were found in Ma}'. He studied the distribution of these 

 larvfB upon the apple, and found that 38 per cent crawled into the 

 basin of the apple, and 62 per cent mto the cavity at the stem end. 

 Detailed notes are given on the appearance of the larvai in different 

 stages, the secretion of the scale, and the loss of locomotion. The 

 author observed that the old females shed their scales and secreted 

 masses of a white woolly substance 2 or 3 days previous to the begin- 



