445 



TuLLis (M. p.) . Brief History of Grasshopper Outbreak in Saskatchewan, 

 1918-20, inclusive.— i6/A Ann. Kept. Saskatcheimn Dept. Agric, 

 1920-21, Rcgina, 1921, pp. 69-76, 1 fig. [Received 3rd July 

 1922.] 



An account is given of the grasshopper outbreaks in Saskatchewan 

 in 1918-20 and of the measures taken to deal with them [R.A.E., ix, 

 147, 259, 541, etc.]. 



Penny (D. D.). A Catalog of the California Aleyrodidae and the 

 Descriptions of Four New Species. — //. Ent. S- Zool., Claremont, 

 Cal., xiv, no. 2, June 1922, pp. 21-35, 4 figs. 

 A list of the previously described Aleurodids of California is given, 

 with records of their food-plants and localities. 



The new species described are : Aleurodes essigi on Ulmus sp. ; 

 Asterochiton corollis on Arctostaphylos manzanita ; A. diminutis on 

 tarweed {Chamaebatia foliolosa) ; and Tetr aleurodes herberti on black 

 locust [Robinia pseud acacia]. 



Flebut (A. J.). Controlling the Achemon Sphinx Moth. — Associated 

 Grower, ii, no. 8, 1921, p. 11. (Abstract in Expt. Sta. Record, 

 Washington, B.C., xlvi, no. 7, May 1922, p. 658.) 



An application of a spray consisting of lead arsenate paste 10 lb., 

 atomic sulphur 24 lb., ground glue 1 lb., and water 200 U.S. gals., 

 apphed at a pressure of about 250 lb., started on 16th May and 

 completed on 9th June, resulted in the prevention of injury by the 

 achemon sphinx moth [Pholiis achemon] in a large vineyard in 

 California. 



MozNETTE (G. F.). Notes on a destructive Lawn Insect.— Florida 

 Grower, xxiv, no. 22, 1921, p. 13. (Abstract in Expt. Sta. Record, 

 Washington, D.C., xlvi, no. 7, May 1922, p. 659.) 



Cranibus haytiellus, Zinck., was a source of considerable injury 

 to lawns in Florida during the spring and early summer of 1921. The 

 grasses attacked included Bermuda grass [Cynodon dactylon) and 

 Japanese grass [Zoysia japonica), the injury being particularly severe 

 to the latter. The tubes containing the larvae are located in the 

 thickly massed grass roots and runners either on or just below the 

 surface of the soil, where they feed upon the grass with which they come 

 in contact. Preliminary tests made with several insecticides indicate 

 that good results may be obtained from the use of tobacco dust applied 

 with a dust gun. Where lawns were thus treated the larvae were either 

 killed or they migrated from the dusted area. 



FuLLAWAY (D. T.). Insect Problems of the Pineapple Industry.— 



Hawaiian Forester & Agric, Honolulu, xix, no. 1, January 

 1922, pp. 5-12. [Received 4th July 1922.] 



Many of the most important pineapple pests of other countries are 

 absent from Hawah. Those that occur include the mealybug [Pseudo- 

 coccus byomeliae], which is also found on sugar-cane, bananas, grass 

 roots and some other plants. It is generally found in clusters at the 

 base of the fruit or leaves. Enemies that keep its numbers down are 

 the Coccinellids, Cryptolaemus montrouzieri and Scymnus bipunctatus. 



