51 



vegetable matter, and are all parasitic. Fig. 52 represents Anthomyia Badicum, Linn., 



var. Goleopteri, the Anthomyid egg parasite which 

 was found by Prof. Riley to be parasitic on the 

 eggs of the Rocky Mountain locust. In its 

 parasitic capacity it has been most useful. 



Fig. 51. 



Another species, the onion fly An- 

 thomyia Cepartim, Bouche, Fig. 53, 

 attacks the root of the onion. The 

 figure shews the onion bulb with the 

 pupa in the centre. 



The larvae of another fly, Antho- 

 myidoe Zeoe, of Riley, attacks seed 

 corn, and the radish is also infested 

 by Anthomyice Haphani, Harris. 



Fig. 54 represents another onion fly, Ortalis Flexa, of Wiedmann ; the maggot feeds 

 on the root ; other of the same species feed on the leaves, and afterwards the fruit, of 



Fig. 53, Onion Fly. 



Fig."54. 



the cheiTy, olive, and orange. 



The remaining members of this section of the 

 flies are those which are known as Fupijyarous, 

 and consist of she Hippoboscidce, the forest flies 



and sheep ticks. . 



This closes our list, brief as it has necessarily been,''of this great gioup of insects. 



CHRYSOMELID JE—L E A F-E A T E R S. 

 By W. Hague Harrington, Ottawa. 



The numerous species which are comprised in this extensive family of Coleoptera, 

 are universally phvtophagous, or plant-feeding beetles, and many of them are well known 

 as destructive insects. The family name is derived from two Greek words signifying 

 « Golden Apples," and has been applied to this group of beetles because so large a pro- 

 portion of the species have rounded forms and bright colours. 



Although the family embraces several thousand known species, none have yet been 

 discovered which exceed an inch in length, and few, if any, attain that size, while the 

 vast majority of them are small, and often very minute. It is not from their size that 

 they are to be feared, but from the very rapid rate at which they increase m number, 

 and enlarge the area of their depredations. 



