513 



[cyanea], give excellent results in control of the black scale {Saissetia 

 oleae, Bern.) in Southern California about once in three or four years. 

 In the following year, however, the food supply has become so low that 

 they are almost starved out of existence ; it is at this point that the 

 reintroduction of numbers of the parasites is required to maintain 

 the requisite degree of control. This problem has practically been 

 solved in the case of the Coccinellid, Cryptolaemus montrouzieri, Muls., 

 used against Pseudococcus spp. [R.A.E., A, viii, 318], and that of 

 Aphycus lounshuryi against 5. oleae [R.A.E., A, ix, 339]. Accounts 

 are given of the rearing and distribution of these two species. 



FuLLAWAY (D. T.) . Annual Report for Calendar Year 1921.— Hawaiian 

 Forester & Agric, Honolulu, xix, no. 5, May 1922, pp. 103-105. 



The various projects and investigations recorded for the year have 

 been previously noticed. The beneficial insects liberated during the 

 year included Galesus silvestrii 6,900, Diachasma tryoni 13,322, 

 * Tetrastichus giffardianus 24,650, Dirhinus giffardi 6,300, Opius 

 humilis 3,780, and Diachasma fiillawayi 10,450, all being parasites of 

 the fruit-fly [Ceratitis capitata] ; Opitis fletcheri 41,425, a parasite 

 of the melon fly [Dacus citrcubitae] ; and Paranagrus oshorni 3,400, 

 a parasite of the corn leafhopper [Peregrinus maidis]. 



Ehrhorn (E. M.). Division of Plant Inspection. Annual Report for 



Calendar Year 1921. — Haivaiian Forester & Agric, Honolulu, 

 xix, no. 5, May 1922, pp. 105-107. 



This is a record of the work of the plant inspection division during 

 1921, most of which has been previously. noticed in the monthly reports. 



Ehrhorn (E. M.). Reports of the Chief Plant Inspector for February- 

 April 1922. — Hawaiian Forester & Agric, Honolulu, xix, nos. 

 4, 5 & 6, April, May & June 1922, pp. 87-88, 116-117 & 140-141. 



The pests intercepted include : From Australia, Chionaspis citri 

 on lemons ; from China, Aphis sp. on Caladium, and Lepidosaplics sp. 

 on pomelo ; from Japan, Pseitdaonidia trilohitiforniis, Parlatoria 

 pergandei and Hemichionaspis aspidistrae on tangerines ; from the 

 Philippines, Pheidole sp. in seeds, and weevils in betel nuts ; from the 

 United States, Pseudococcus gahani and Brevicoryne (Aphis) brassicae 

 on plants from California and Pseudococcus maritimus , P. longispinus 

 and Hemichionaspis aspidistrae on various plants ; from New Zealand, 

 P. maritimus on pears. 



Hayes (W. P.). Method of Procedure in Insect Life History Investiga- 

 tions. — Canadian Ent., Orillia, liv, no. 4, April 1922, pp. l'i-11 . 



The importance of careful life-history investigations as an aid to the 

 control of injurious insects and the necessity for a methodical plan of 

 study are pointed out. A system upon which to work in preparing such 

 data is suggested. 



Knull (J. N.). Annotated List of the Buprestidae of Pennsylvania 

 [Coleoptera].— Ca«at^/a« Ent., Orillia, liv, no. 4, April 1922, 

 pp. 79-86. 



This list of the Buprestids of Pennsylvania, arranged according to 

 Leng's catalogue, has been compiled from original rearings and collecting 

 (7653) 2 M 



