260 THE MONTHLY BULLETIN. 



THE PLAGUE GRASSHOPPER PARASITE. 



Mat<:ic(i(i iKicIn/tili Skuse. 

 (Fig. 258.) 



General Appearance. — The adult flies are somewhat smaller than the 

 ordinary house flies and dark gray in color with white face and light 

 halteres. 



Fig. 258. — The plague grasshopper parasite 

 (Masicera pachytili Sliuse). A\ natural 

 size ; A, enlarged. 



Distribution. — This fly was introduced into California V)y Geo. 

 Compere from Australia, where it does great execution on the plague 

 h)cust or grasshopper. To what extent it has become established is not 

 k-nown. 



Hosts, — Works upon grasshoppers. 



Peletcria robusta Wied. 

 (Fig. 259.) 



General Appearance. — The adults are about one half inch long. 



The 



Fig. 259. — Peleteriu robusta 

 Wied. Enlarged. (Original.) 



face is white; antenna^ brown and black; eyes brown; thorax metallic 

 black and dull grayish along the sides ; the abdomen brick-red or yellow- 

 ish with ])lack dorsal and median hmgitudinal stripe. 



