INSECT PESTS. - MEANS OF PREVENTION AND CONTROL 1/21 



furth's green, but the writer considers it scarcely probable that this method 

 will destroy the eggs in the ground. 



In conclusion it is suggested that a further stud}' of the origin and 

 life-history of Tachycines should be made, and that further esperiments 

 on preventive methods should be undertaken. 



1243 - New Species of Braconid Hyraenoptera, Parasites of Tripanids Diptera in 



India. — Silvestri, F., in Bolkttino dct, Laboraiorio di Zoolo:,ia i,cncrale e ai^rana della 

 R. Scuola superiore d'Agricoltura in Portici, Vol. XI, pp. 160-169, Fig. I-VI. Portici, Sep- 

 tember 27, 1916. 

 A description is given of the following new species of Braconid Hymen- 

 optera which are parasitic on Tripanids collected from various localities in 

 India by Thomas Bainbrigge Fletcher : 



i) Bracon jletcheri n. sp., obtained from fruits of Zizyphus Jujuba 

 L,am., which were attacked by Carpomyia vesiiviana A. Costa ; 



2) Opnis jletcheri n. sp., obtained from the pupae of Chaetodacus 

 cucurhitae Coquillet, whose larvae live in the fruits of Momordica Charantia L. 



3) 0. incisi n. sp., at Pollibetta, Southern Coorg, obtained from the 

 pupae of Chaetodacus incisus Walk., living in fruits of Carey a arbor ea Roxb. 

 (jak fruit) ; 



4) Biosteres carpomyiae n. sp., at Pusa, obtained from pupae of 

 Carpomyia vesuviana A. Costa ; 



5) B. perstdcatiis n. sp., in northern and southern Coorg, obtained 

 from pupae of Chaetodacus incisus Walk. ; 



6) B. compensans n. sp., in Coorg, obtained from pupae of Chaeto- 

 dacus incisus Walk., living in the fruits of Carey a arbor ea Roxb. 



1244 - The Green Lacewing Fly {Chrysopa californfca), a Natural Enemy of Insect 

 Pests in the United States and in California. -— wildermuth, v. L-, in journal of Agri- 

 cultural Research, Vol. VI, No. 14, pp. 515-525. Fig- i"/- Washington, D.-C, 1916. 



The larv^ae of Chrysopa californica Coquillet destroy large numbers 

 of insects which are parasitic on cultivated plants notably : clover mite 

 {Bryobia pratensis Garman), two spotted mites [Tetranychus mytilaspidis 

 Riley), red spider {T. telarius L.), apple leaf hopper [Empoasca mali I^e 

 Baron), grape leaf hopper {Typhlocyba comes Say), Pear Psylla {Psylla 

 pyricola Foerster), meaty plum plant louse {Hyalopterus arundinis Fabri- 

 cius), melon aphis {Aphis gossypii. Glover) , black peach aphis {A. persicae- 

 niger Erwin Smith), green Citrus plant louse (Macrosiphum citrifolii Ash- 

 mead), Citrus mealy bug {Pseudococcus citri Risso), frosted scale {Eulecanium 

 pruinosum Coquillet), red scale {Chrysomphalus aurantii Maskell), purple 

 scale {Lepidosaphes beckii Newman), wheat thrips {Euthrips tritici Fitch), 

 barle}' mite [NotophaUus viridis Banks), green bug [Toxoptera graminum 

 Rondani), and corn leaf aphis {Aphis maidis Fitch). 



Everj^ female lays about 30 eggs, each one being supported by a slender 

 stalk ; the eggs are hatched at the end of 6 to 12 days. The larvae pass 

 through two moults which divide the larval period up into three stages, 

 occupying 11 to 22 days, the average time being 16 days. 



The larvae are very voracious, each one being able to dispose of 74 to- 



MEANS 

 OF PREVENTION 

 AND CONTROL 



