45 



species, S. timberlakei was bred from larvae of Batrachedra sophroniella, 

 S. pulchra from leaf-miners in Urera, S. capuana from larvae of Capua 

 cassia and Torfrix {Archips) longiplicatiis, S. gracilariae from larvae of 

 Gracilaria mabaella, S. cryptophlehiae from larvae of Cryptophlebia 

 illepida, and 5. batrachedrae from larvae of a species of Batrachedra 

 infesting a fern {Acrostic hum). 



Keilin (D.) & PicADo (C). Biologic et Morphologie Larvaires 

 d'' Anastrepha striata, Schiner, Mouche des Fruits de I'Am^riaue 



centrale. — Bull. Sci. de la France et de la Belgique, Paris, xlviii, 

 no. 4, 25th October 1920, pp. 423-441, 6 figs. 



Anastrepha striata, Schin., causes great damage to guava trees 

 [Psidium spp.) in Costa Rica. Although orange trees, coffee, avocado 

 and mangos are grown in the vicinity, their fruits are apparently not 

 attacked by this fruit-fly. Oviposition occurs probably throughout 

 the year, but always in guava fruits. Certain species of Psidium are 

 more or less immune from attack, but the cause of immunit}^ has not been 

 ascertained. The morphology of the larva is described. 



The remedial measures advocated include the harvesting of fruit 

 before maturity and before the larvae have penetrated into them, 

 removal and burning of windfalls, digging up the ground round the 

 trees, thus exposing the pupae to be eaten by fowls, and the introduction 

 of natural enemies. The Braconid parasite, Diachasma crawfordi, that 

 attacks this pest may be easily bred. 



A spray that has proved successful against A. Indens, Lw., may 

 also prove to be as valuable against this species. It is composed of 

 19 gals, of crude carbolic acid, 185 lb. of whale oil soap and 152 gals, of 

 water. This carbolic emulsion should be diluted with water in the 

 proportion of 1 to 20 before application. 



Additions to the Wild Fauna and Flora of the Royal Botanic Gardens^ 



Kew : XV. — Bull. Misc. Inform. R. Bot. Gdns., Kew, London, 

 no. 6, 1920, pp. 212-217. 



The greater portion of this paper dealing with insect pests occurring 

 at the Royal Botanic Gardens, Kew, has been compiled by Mr. F. 

 Laing. The list comprises 85 species, including many Aphids, 

 Aleurodids, Psyllids and Coccids. 



According to Mr. H. A. Bayhs the Nematode, Mermis nigrescens, 

 which is an insect parasite, was extremely abundant during June 1920. 



Boodle (L. A.) & Dallimore (W.). Bamboos and Boring Beetles. — 



Bull. Misc. Inform. R. Bot. Gdns., Kew, London, no. 8, 1920, 



pp. 282-285. 

 Bamboos used in India for building purposes are ver^^ liable to attack 

 by boring beetles, but if soaked in water before use, they generally 

 remain untouched. As a result of experiments on Dinoderus minutus, 

 F., undertaken at the Royal Botanic Gardens, Kew, to ascertain the 

 reason for this, it seems probable that soaking in water results in the 

 removal of most of the sugar-content, and this renders the bamboos 

 unattractive to the beetles. 



Leefmans (S.). De Klappertor [Oryctes rhinoceros, L.) [The Coconut 

 Beetle, 0. rhinoceros.] — Meded. Inst. Plantenziekten, Buitenzorg, 

 no. 41, 1920, 156 pp., 19 plates. [With an Enghsh Summary.] 



The two most important pests of coconut are the coconut beetle, 

 Oryctes rhinoceros, and the coconut weevil [Rhynchophorus ferrugineus]. 



