VI CONTENTS 



IV. — Weeds and Parasitic FIvOwering Plants. 



1339. Xanthium canadense, a New Weed in Southern Australia. — 1340. Echiutn vidgare and 

 Phytolacca octandra, Harmful Weeds in New Zealand. 



V. — Injurious Insects and other Lower Animals. 



a) General. ' 



Generalities. — 1341. Locusts in Java. 



Means of Prevention and Control. — - 1342. Studies Concerning the Application of Hydro- 

 cyanic Acid as an Insecticide. — 1343. Experiments Concerning the Destruction of Lepi- 

 diota Albohirta, a Coleopteran Pest on the Sugar Cane in Queensland. 



b) Special. 



Insects, etc., Injurious to Various Crops. — 1344. Xanthorhoe praejectata, a Pest on 

 Phormiutn tenax in New Zealand. — 1345. Aphis pseudohrassicae, a Pest on Brassicae 

 and Raphanus spp. in America. — 1346. Cholus cattleyae n. sp. and Diorymellus laevi- 

 margo n. sp., Curculionid Pests of Orchids, in America. — 1347- Aleurocanthus woglumi,- 

 a Hemipteran Pest on Several Cultivated Plants in the Island of Cuba.- — 1348. Idioccfus 

 niveosparsus and /. clypealis, Rhyncota Parasitic on Mango Trees in the Philippines. — 

 1349. Lygus spinola and L. pratensis, Rhyncote Pests on Vines in Austria. — 1350- 

 Plant and Animal Pests on the Vine in Ontario, Canada. 



VI. — Injurious Vertebrates. 



1351. The Plague of N^oles and its Sudden Disappearance in the District of Ouman, Kiev, Rus- 

 sia, in 1915. 



The Bureau assumes no responsibility with regard to the opinions and the results of experiments 

 SOUtlined in the Bulletin. 



The Editor's notes arc marked (Ed.). 



