247 



to the stalks close to the ground. At Samso, a serious attack in July 

 •destroyed one-third of the seed-cauliflowers. The severity of the attack 

 in 1913 depended on the drought, which checked the growth of the 

 plants. Phyllotreta nemorum, P. atra and possibly other species, 

 appeared in May in great numbers. In most of these localities the 

 rain occurring at the end of the month stopped the attack. The weevil, 

 Ceuthorhynchus sulcicollis, was recorded in July in several places and C. 

 quadridens was comparatively common. At Aarhus, Eurydema 

 oleracea damaged the turnips. Plutella macidipennis (cruciferanim) 

 was observed from the end of June to August in several localities 

 without however causing any damage as a rule. CauUflowers in one 

 locality were completely destroyed by Forficula auricularia. Aphis 

 brassicae occurred in unusually great numbers and caused great 

 damage, especially to turnips and all kinds of cabbage. In some 

 places it appeared as early as June, but generally there was no com- 

 plaint of exceptional injury before July. Meligethes aeneus, Ceuihor- 

 rhynchus assimilis and Perrisia {Cecidomyia) brassicae occurred in 

 great numbers, and in several places caused great damage. The 

 carrot fly, Psila rosae, was very common and chiefly damaged early 

 £Own carrots. 



Potato pests included the bugs, Calocoris bipunctatus and Eurydema 

 oleracea, which were recorded from several places ; at Varde a weevil, 

 Cneorrhinus plagiatus {geminatus), was observed gnawing holes in the 

 leaves. 



Clover was attacked by three weevils, Sitones linealns, Apion 

 apricans and A. pisi. Lotus corniculatus was damaged by Contarinia 

 {Cecidomyia) loti, and in July and August by Aphididae. The eel- 

 worm, Tylenchus devasfafrix, appeared in great numbers in the spring 

 and its attacks continued through the summer until late in the 

 autimm. 



Forage grasses were attacked by the mite, Pedicidopsis {Pedi- 

 culoides) graminum, the Scatomyzid fly, Clidogasira {Cleigastra)jlavipes 

 and the caterpillars of Trachea {Hadena) secalis and Luperina {Apamea 

 testacea. 



Against wireworms in wheat, Chile salpetre in April gave good 

 results, but kainit, on the contrary, proved quite ineffective, even at 

 the rate of ]6cwt. per acre. At Tystofte, the plants were protected 

 from oviposition by species of Agrotis by covering them during the 

 night with cheese-cloth. Against Aphis rumicis spraying the seed- 

 turnips \\nth tobacco emulsion was very useful. 



Knab (F.). Drosophilidae with Parasitic Larvae. — Insecutor Insciliae 

 Menstruus, Washinglon, D.C., ii, no. 11, November 1914, 

 pp. 165-169. [Received Ajml 1915.] 

 Two new species of Drosophilidae are described -.—Gitonides 



perspicax, gen. et sp. n., Hawaii and Philippine Islands, which has 



been reared four times from Pseudococcus ; and Titanochaela ichneumon, 



Hawaii, reared from larvae feeding on spider's eggs. 



