592 



Brethes (J.). Gyropsylla ilicola, n. gen. and n. sp., attacking Mate 

 ( Ilex paragiianensis) in the Republic of Argentina. — Universidad 

 Nac. de La Plata, Rev. de la Facultad de Agronoinia, La Plata, 

 xiv, no. 2, 1921, pp. 82-89, 6 figs. (Abstract in Internal. Rev. 

 Sci. & Pract. Agric, Rome, xii, no. 12, December 1921, p. 1654.) 

 [Received 3rd October 1922.] 



A description is given of Gyropsylla ilicola, gen. et sp. n., infesting 

 Ilex paraguariensis. This Ps\dlid causes the leaves to wither and thus 

 spoils the crop. The edges of the leaf curl up and form a kind of bag 

 harbouring a colony of the insects. Several dried pouches may be 

 made on the same leaf, and they protect the larvae against insecticides. 

 It is also of little use to combat the adults, as Wvey occur on other 

 plants besides I. paraguariensis. The best time for control is when 

 the larvae are newly hatched. 



Spraying with a two per cent, solution of tobacco extract is suggested 

 for trial, the best time being thought to be in October, when the new 

 shoots are 5-8 cm. long. Should rain fall after the application, it 

 must be repeated. 



Eckstein (F.). Ueber die Lebensweise von Thanasimus {Clems) 

 formicarius, Latr. — Forstic. Zentralhl., xliii, 1921, pp. 57-62. 

 (Abstract in Centralbl. Bakt. Paras. Infekt., Jena, lite Abt., 

 Ivii, no. 4-10, 18th September 1922, pp. 190-191.) 



Thanasimus {Clerus) formicarius, Latr., which preys upon bark- 

 beetles, oviposits from the end of March to May during the flight- 

 period of the hosts. Its larva pupates in September and October, 

 and the adult emerges in the following spring. This beetle is com- 

 paratively unimportant as a check on bark-beetles, although large 

 numbers are destroyed. The broods of T. formicarius, as well as 

 those of the bark-beetles, are killed by the early removal of the bark 

 of trap-logs. 



CiFERRi (R.). Insetti nocivi alia vite. [Insects injurious to the Vine.] 

 —Riv. Agric, Parma, xxvii, nos. 39, 40, 42 & 43, 29th September, 

 6th, 20th & 27th October 1922, pp. 586-587, 600-602, 626-627, 

 640-642. 



In this series of articles the various insect pests of the grape-vine 

 in Italy and the measures advisable against them are described in a 

 simple manner. The species dealt with as of more or less importance 

 include : — Orthoptera ; Dociostaurus maroccanns, Thunb. Rhyn- 

 chota : Pidvinaria vitis, L., and Pseudococcus (Dactylopius) vitis, Nied , 

 Phylloxera being reserved for a special article. Coleoptera : Melolontha 

 melolontha, L. {vtdgaris, F.), Anomala vitis, F., Sinoxylon sexdentatum, 

 Oliv., 5. hispinosttm, Oliv., Rhynchites betidae, F., Otiorrhynchus 

 sidcaius, F., Haltica ampelophaga, Guer., and Bromius obscurtis, L. 

 Lepidoptera : Pergesa (Chaerocampa) elpenor, L., Procris {I no) 

 ampelophaga, Hb., Euxoa [Agrotis) tritici, L., var. aqnilina, Hb., 

 A. pronuba, L., Sparganothis pilleriana, Schiff., Clysia {Conchylis) 

 ambiguella, Hb., and Polychrosis {Eitdemis) botrana, Schiff. 



CiMATTi (V.). La mosca delle olive. [The Ohve Fly.] — Riv. Agric, 

 Parma, xxvii, no. 43, 27th October 1922, pp. 645-647. 



An account of the life-history of the olive fly [Dacus oleae] and the 

 injury it causes is given, together with instructions for preparing the 

 poison-baits now largely used against this pest [R.A.E., A, ix, 586]. 



