287 



Chittenden (F. H.). The Two-banded Fungus Beetle.— Jl. Econ. 

 Entom., Concord, N.H., x, no. 2, April 1917, pp. 282-287, 1 fig. 



The Tenebrionid beetle, Alphitophagus hifasciatus. Say, though now 

 cosmopolitan, would appear to be native to America, though its 

 origin is doubtful. This beetle has been observed in flour, maize meal, 

 bread, and under bark and decaymg wood and other vegetable matter, 

 includmg dried fruit and fungi. A certain degree of moisture is 

 necessary for its development. In rearing jars a new generation was 

 ])roduced in 32 days on fermenting meal and flour. Allowing six days 

 for the probable period of the egg-stage, the larval period apparently 

 lasts three or four weeks in summer, the pupal period occupying six 

 days during hot August weather. In buildings, Persian insect powder 

 was found to be an effective control. In granaries and places where 

 stored materials are kept the beetles succmnb to standard remedies 

 such as fumigation and heat. The insect is not a serious pest in 

 buildings where clean conditions are maintained. 



Headlee (T. H.). Further Trial of Sulphur- Arsenate of Lead Dust 

 against the Strawberry Weevil. — Jl. Econ. Entom., Concord, N.H., 

 X, no. 2, April 1917, pp. 287-290. 



The success of sulphur mixed with arsenate of lead dust as a 

 protection from the strawberry weevil, Anthonomus signatus, Say, 

 and the value of this method over other control measures, has already 

 been recorded [see this Revieiv, Ser. A, iv, p. 189]. This mixture acts 

 as a repellent only, very few of the weevils being killed by the 

 treatment. The results of the applications in 1915 were so surprising 

 that further tests were planned for 1916, and tables are given showing 

 the results of treatment with arsenate of lead and flour, arsenate of 

 lead only, sulphur only, sulphur and lead 1 : 1 and sulphur and lead 1 : 5. 

 Traction or power machinery was found necessary in dealing with 

 large areas ; on small areas applications through a cheese-cloth bag 

 or with the hand only gave good results. A mixture of the two 

 substances was found to be far more effectual than either used alone, 

 ])robably owing to its better flowing qualities. The 1 : 5 mixture 

 proved as successful as the 1:1, and much less expensive. The increase 

 ill crop obtained by the treatment was about 200 per cent, and, 

 ))rovided that a complete coating of the buds is maintained during 

 ihe critical period, even better results should be attained. 



DA^^DSON (W. H.). Little known Western Plant Lice. — Jl. Econ. 

 Entom., Concord, N.H., x. no. 2, April 1917, pp. 290-297, 1 fig. 



This paper is a continuation of a previous one [see this Review, 

 Ser. A, iii, p. 686]. 



What is now believed to be Vacitmc dryojjhila, Schrank, has already 

 been described by the author in the apterous vivipara and young 

 sexual forms under the name of Ckaitojjhorus sp. [see this Review, 

 Ser. A, ii, p. 251]. Examination of other forms has since led to the 

 conclusion that this species is widely separated from CkaitopJioru,s. 

 The stem-mothers of V. dryojjhila hatch about the beginning of March 

 and feed at the base of the oak buds, producing a generation of young 

 which become apterous viviparae and give birth to the third generation. 



