428 



Massini (C. p.)- Institute Biol6gico de la Sociedad Rural Argentina. 

 Resumen de los Trabajos efectuados durante el Aho 1917. 



[Summary of the Work done in 1917 at the Biological Institute of 

 the Rural Society of Argentina.] — Anales Soc. Rural Argenti),a, 

 Buenos Aires, lii, no. 3, March 1918, pp. 141-147. [Received 

 19th July 1918.] 



A large part of the report of the Entomological Section deals with 

 the biological control of injurious insects ; the information regarding 

 locusts and bagworms has already been abstracted [see this Beview, 

 Ser. A, V, pp. 505-506]. Diloboderus abderus, Sturm, a Scarabaeid 

 with a destructive larva, is being studied. The orange pest, Popilio 

 troantiades, Burm., was found to be attacked by a natural enemy and 

 the method of utilising it has been worked out. Information has been 

 collected regarding lucerne pests, of which the butterflies, Colias 

 lesbia and Tafochih autodice, and the moth, Bachijpilusia nu, Gn., 

 are the chief. The last-named was found to be parasitised by a new 

 Tachinid, Plagia ayerzia. 



Massini (P. C.) & Brethes (J.). Tres nuevas Cochinillas argentinas 



y sus Pardsitos. [Three new Argentine Coccids and their Parasites.] 

 — Anales Soc. Rural Argentina, Buenos Aires, lii, no. 3, March 

 1918, pp. 148-158, 10 figs., 8 plates. [Received 19th July 1918.] 



The Coccids hitherto recorded from Argentina number about fifty 

 only, and this is solely due to the fact that many species have not yet 

 been studied. 



The new species here described by Brethes are Pulvinaria 'platensis, 

 P. flavescens and P. minuta. None of these are injurious to any 

 extent, because they are held in check by natural enemies, of which 

 the following are here described by Brethes : — Tetrastichus caridei, 

 A'phycus flavidulus var. caridei, A. fiavidtdus var. nigra, Onophihts 

 caridei and Pseudaphelinus caridei, the last two belonging to new 

 genera. 0. caridei appears to be the most efficacious of these enemies. 



Brethes (J.). QuatreHymenopteres Parasites du Chili, [Four parasitic 

 Hymenoptera from Chile.] — Anales Zool. Aplicada, Santiago de 

 Chile, iv, no. 2, 31st July 1917, pp. 25-29, 4 figs. [Received 

 31st July 1918.] 



This paper records the following parasitic Hymenoptera : — Dirphi- 

 phagus ancilla, Wlk., a parasite of the eggs of the moths, Dirphia 

 amphimone and Macromphalia dedecora, and the type-species of a 

 new genus ; Aproslocerus norax, Wlk., a parasite of M. dedecora ; 

 Calosoter silvai, sp. n., parasitising the eggs of M. dedecora ; and 

 Paridris chilensis, gen. et sp. n., parasitising D. amphimone. 



Porter (C. E.). Notas de Acarologia. Un Parasite de la Schistocerca 

 paranensis, Burm. [Acarological Notes : A Parasite of S. para- 

 nensis.] — Anales Zool. Aplicada, Santiago de Chile, iv, no. 2, 

 31st July 1917, p. 30. [Received 31st July 1918.] 



The Tarsonemid mite, Podajjolipus bcrlesei, Lahille, is recorded from 

 a specimen of Schistocerca paranensis, Burm., among the swarms of 

 this locust present in Chile in January 1917 [see this Review, Ser. A, 

 vi, p. 161]. 



