519 



June. Sprayed orchards in one county sliowed injury varying from 

 25 to 35 per cent., while in unsprayed plots, injury varied from 30 to 

 37 per cent. These facts are sufficient to emphasise the need for 

 thorough annual sprayings. In the discussion following the paper it 

 was stated that a somewhat similar type of injury is caused in Nova 

 Scotia by the budmoth [Eucosma ocellana]. 



Du Porte (E. M.). Insects of [Ste. Anne's, Que., Season of 1915. — 

 46th Ann. Rept. Entom. Soc. Ontario, 1915, Toronto, 1916, 

 pp. 48-50. [Received 10th October 1916.] 



An abstract of this report has already been pubhshed [see this 

 jReview, Ser. A, Vol. iv, p. 485]. 



Du Porte (E. M). The Occurrence of Tycliius 2ncirostris on Clover 

 at Ste. Anne's, Que. — 46th Ann. Rept. Entom. Soc. Ontario, 1916, 

 Toronto, 1916, pp. 50-52, 1 fig. [Received 10th October 1916.] 



Tycliius picirosiris (clover-head weevil) was first observed on the 

 leaves of red clover during May. Later in the season migration to the 

 flower-heads took place, and in this position the weevils were found 

 until the end of September. In Europe this species attacks the flower- 

 heads of red clover, plantain and Genista, and in the United States has 

 been recorded from New York and Massachusetts. This is the first 

 occasion on which it has been recorded in injurious numbers in North 

 America. 



Parrott (P. J.) & Glasgow (H.). The Leaf-Weevil {Polydrusus 

 impress if rons, Gyll.) in New York. — 46th Ann. Rept. Entom. Soc. 

 Ontario, 1915, Toronto, 1916, pp. 60-65. [Received 10th October 

 1916.] 



Polydrusus impressifrons has been imported into the United States 

 from Europe and at the present time has become estabHshed in three 

 counties in New York State. The favourite food-plants are birch, 

 willow, poplar, apple and pear, while elm, rose, Hnden and black locust 

 are attacked to a less extent. Adult beetles emerge from the ground 

 during the end of May and the beginning of June. In 1914, they were 

 first observed on 26th May. Oviposition began about 30th May, eggs 

 being placed in crevices of the bark of the living tree or of twigs lying 

 on the ground. Eggs occurred either singly or in masses in positions 

 exposed to sunhght. Larvae emerged in about 13 days and entered 

 the soil to feed on the roots of the host. Pupation took place during 

 the latter part of April and the beginning of May at depths varying 

 from 2 to 3 inches below the surface. In the adult stage P. impressi- 

 frons feeds on the fohage. Methods of control include the use of 

 arsenical sprays against the adults and thorough cultivation to destroy 

 larvae and pupae. 



