318 



measures is necessary to keep it from spreading all over the southern 

 part of the State. In some orchards where it has been present for 

 several years, fully 50 per cent, of the crop is affected, and the 

 damage is gradually increasing and spreading. Infested nuts are not 

 only a total loss but are very hard to detect, a large amount of extra 

 labour being required, and even then some are included in the 

 picking. 



While the insect in all its stages closely resembles the codling moth, 

 its occurrence in walnuts shows no connection with apple and. pear trees, 

 and judging from its feeding habits it is a different form from that 

 which ordinarily attacks those fruits. Its dissemination has been 

 largely due to sacks from infested orchards being taken into uninfested 

 places. 



LizER (C). La Icerya brasiliensis, nueva para la Fauna argentina.— 

 Physis, Buenos Aires, iv, no. 17, 20th December 1918, pp. 331- 

 332. [Received 28th May 1919.] 



The Coccid, Icerya brasiliensis, found early in May on _^acaranda 

 [rosewood], is recorded from Argentina. 



Frees (A. G.). Metamorfosis de la LetJia bilineata, Germ.— Physis, 

 Buenos Aires, iv, no. 17, 20th December 1918, pp. 336-339, 12 figs. 

 [Received 28th May 1919.J 



Observations are recorded from various localities in the Province 

 of Buenos Aires on the Chrysomelid, beetle, Lejna bilineata, Germ., 

 which was found in all stages from November to April feeding on the 

 leaves of Sal/pichroa rhomboidea. The various stages are described. 

 The eggs are laid on the under-side of the leaves in masses of 20 to 30 

 or more. The larvae feed on the leaves until mature and in captivity 

 pupated between the leaves on which they were fed, though in nature 

 it is probable that they descend to the ground for pupation, as no pupae 

 could be found upon the food-plants. The pupal stage lasts 15 to 

 20 days. Adults were observed at the end of IVIay under the bark 

 of trees, especially of Eucalyptus. 



Blanchard (E. E.). Una nueva Especie de Aleurotlirixus (Homoptera, 

 Aleurodidae). — P7i^sr5, Buenos Aires, iv, no. 17, 20th December 

 1918, pp. 344-347, 6 figs. [Received 28th May 1919.] 



Aleurothrixus graneli, sp. n., is described from leaves of Ipomaea 

 sp. and from jasmine leaves that were completely withered by the 

 attacks of this species. 



Beethes (J.). Un Bemb^cido Cazador de Hemipteros. [A Bembecid 

 predaceous upon Hemiptera.]^P/«?/st5, Buenos Aires, iv, no. 17, 

 20th December 1918, pp. 348-349. [Received 28th May 1919.] 



Larvae of Rhynchota found in the nest of the Bembecid wasp, 

 Bembidula discisa, Tasch., included Edessa meditabunda, L., Spartocerus 

 brevicornis, Stal, and Pachylis argentinus. Berg. 



