209 



«^gs are laid at intervals of one to two days from about April to July, 

 generally in small batches of from four to twenty-five. Each female 

 lays a total of about 500 eggs during the season. Adults from eggs 

 laid in April begin ovipositing about 24th June, the generations thus 

 overlapping. In captivity three partial generations were produced, 

 but under natural conditions probably only two occur. Ihe hiber- 

 nating individuals represent all existing generations, with a majority 

 •of members of the last. This beetle cannot live on Salix spp., but 

 will feed readily on purple willow, five-leaved ivy, Epilohmm and several 

 •species of Oenothera. 



H. Ivthri has been successfully reared on vine. For various reasons 

 it is thought that H. ampelophaga is probably only a subspecies or 

 race of H. lyihri that has specially adapted itself to vine, and it was 

 found possible to raise hybrids between the two. 



Contra nuestras Hormigas. [A Remedy for Ants.]— Gaceta Rural, 

 Buenos Aires, xiv, no. 162, January 1921, p. 647. 

 It is said that a very simple practice for destroying ants' nests is 

 to pass a straw dipped in water through crystallised perchloride of 

 mercury and thrust it into the nest. As a result the ants almost 

 immediately leave the nest and begin to attack and devour each 

 other. It is suggested that this might prove successful against the 

 Argentine ant [ Iridomyrmex humilis] which is becoming such a pest 

 in Europe and the United States. 



Observaciones relativas a las Condiciones meteorologicas en que se 



efeetuaron los Cultivos de Cereales y Legummosas en el Ano 



agricola 1919-1920, y su Influencia el las Cosechas. [Observations 



on the Meteorological Conditions influencing the Cultivation of 



Cereals and Vegetable Crops in 1919-1920, and their Effect on 



the Crops.]— Bo/. Agric. Tec. Econ., Madrid, xiii, no. 145, 



31st January 1921, pp. 36-38. 



In Mancha and Extremadura locusts and Aphis fabae caused 



-much damage to cultivated crops; in Cataluna and the Balearic 



Islands the chief pests were Tinea granella in wheat and rice and 



Sitotroga [Anacampsis) cerealella in barley; in eastern Andalusia 



and North Africa Aphis fabae, and in western Andalusia Aeha 



rosirata, caused considerable damage. In the Canary Islands Bruchids 



and Aphids have done some injury. 



Schmidt (R.). Uber die Galle des Oligotrophus {Phegomyia) fagicola, 



Kieffer (Houard nr. 1158). [On the Gall of 0. fagicola.]— Sitz- 



ungsber. Natiirf. Ges., Leipsic, xliii-xliv (1916-1917), July 1918, 



pp. 82-85. 



The literature concerning Oligotrophus fagicola, which produces 



galls on the leaves of copper beech, is reviewed. This Cecidomyiid 



pupates in the ground and not, as Ross has stated, in the gall. 



Brethes (!.)• Seccion Entomologica.— il/^w. Trabajos Inst. Biol. 

 Soc Rural Argentina {Mav 1919 to 30th April 1920). Buenos 

 Aires, 1920, pp. 57-62. [Received 23rd February 1921.] 



Much attention has been given during the year to a study of the 

 bagworm, Oeccticus platensis. and its parasite, Parexonsta caridei 



