451 



given of the following predators : Chrysopa sp., Chilomenes vicina, 

 Muls., Syrphus aegyptiiis, Wied., and a small bug, Triphleps sp. 



In addition to the remedial measures previously noticed it is suggested 

 that screen crops be grown along the northern, eastern and western edges 

 of cotton fields, the plant suggested being Cajanus indicus. Hand- 

 picking of badly infested leaves is also recommended, but only in 

 conjunction with heavy waterings. 



Tompkins de Garnett (R.). Notes sur le Dinapatc icrighti, Horn 

 (Col. Bostrychidae). — Bull. Soc. Ent., France, Paris, 1922, no. 9, 

 pp. 119-121, 1 plate. 



Dinapate wrighti, Horn [R.A.E., A, x, 3641 is recorded from 

 Washingtonia {Neowashingtonia) filifera in California. Contrary to 

 the statement by Hubbard {Ent. News, Philadelphia, x, 1899, p. 83), 

 that oviposition never occurs on living trees, exit holes were found on 

 trees of medium and large size. The trees had apparently not suffered 

 in any way. In living trees the exit holes are almost always in the basal 

 portion of the trunk, seldom at the summit ; whereas in fallen trunks 

 the beetles emerge from any portion. The larval galleries are always 

 found at a depth of at least an inch from the bark, and the heart of 

 a trunk with a diameter of over about seven inches is also left 

 untouched. The development of the beetle covers a period of at least 

 three years. 



Garman (H.). The Strawberry Crown-borer {Tyloderma fragariae). — 

 Kentucky Agric. Expt. Sta., Lexington, Circ. 27, October 1921, 

 pp. 27-34, 2 figs. [Received 5th July 1922.] 



Tyloderma fragariae (strawberry crown-borer) has become a serious 

 pest in recent years owing to the increased acreage of strawberries 

 in some parts of Kentucky, the chief danger lying in numerous small 

 plantings for home use that are likely to be neglected. The beetles 

 leave the plants in autumn and hibernate in the soil of the strawberry 

 beds, becoming active again in the following season and ovipositing 

 at the base of the leaf petioles or on the side of the crown in the soil. 

 The newly hatched larvae begin at once to burrow into the crowns, 

 their mines extending to the lower end. There is generally only one 

 in each plant, and the greater part of the crown may be eaten away 

 before the larvae reach maturity. Adults emerging from the plants in 

 late summer feed on the leaves as long as the warm weather lasts. 



Plants started early, before the beetles become active, are less 

 severely damaged than later ones. No plant other than the strawberry 

 is known to be attacked ; the weeds likely to harbour the pest are 

 Rosaceae, those most likely to fuimish alternative food being 

 enumerated. 



New beds should be started at least 150 yards from old ones, and 

 only young plants formed from runners during the preceding summer 

 should be used, taking them from the old beds between 15th November 

 and 1st April, when the insect will not be present in the plants. As 

 soon as old beds cease to be profitable they should be ploughed up and 

 raked off and burnt in July or August, when the insects are most 

 numerous in the crowns. Beds that are only slightly infested and still 



