53 



egetable matter, and are all parasitic. Fig. 52 represents Anthomyia Eadicum, Linn., 



var. Ooleopteri, 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. 



Another species, the onion fly ^n- 

 tJwmyia Ceparum, 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- 

 myidce Zece, of Riley, attacks seed 

 corn, and the radish is also infested 

 by Anthomyice Baphard, Harris. 



Tig. 52. 



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. 

 and sheep ticks. 



Fig.?54. 



the cherry, olive, and orange. 



The remaining members of this section of the 

 flies are those which are known as Pupiparous, 

 and consist of she Hippoboscidce, the forest flies 



This closes our list, brief as it has necessarily been,2of this great group of insects. 



OHRYSOME LI D JE— LEAF-EATERS, 

 By W. Hague Harrington, Ottawa. 



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

 are universally phytophagous, 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 in number, 

 and enlarge the area of their depredations. 



