REPORT OF THE STATE ENTOMOLOGIST I9IO 



85 



ee Palpi triarticulate 



Meinertomyia Felt 



dd 3d vein not extending to the apex of the wing 



eee Palpi uniarticulate 

 e Palpi biarticulate 

 ee Palpi triarticulate 

 cc Wing membrane scaled; 



hh Tarsi biarticulate 



3 simple veins 



Leptosyna Kieff. 



Frirenia Kieff. 



Epimyia Felt 



palpi triarticulate 



Brachyneura Rond. 



Oligarces Mein. 



Fig. 7 Fifth antennal seg- 

 ment of Miastor ameri- 

 cana, greatly enlarged. 

 (Original) 



Fi?. 10 Side view of thorax, legs and 

 abdomen of Miastor americana. 

 (Original) 



Fig. 8 Palpus of 

 Miastor ame ri- 

 c a n a , greatly en- 

 larged. (Original) 



Fig. 9 Wing of Miastor americana, greatly 

 enlarged. (Original) 



M. americana. Female. Length 2.5 mm., slender. Antennae 

 extending to the base of the coxae, sparsely haired, brown; 11 seg- 

 ments, the first short, stout, irregularly subglobose, the second ^ 

 longer, the fifth subcylindric, with a length about ^4 greater than 

 its diameter, tapering at both extremities, subsessile; a very sparse 

 subbasal whorl of stout setae ; subapically and apparently on the 

 ventral surface, a pair of large, irregularly subconic, semitransparent 

 processes (fig. 7) ; the distal segment subglobose, broadly rounded 

 apically. Palpi biarticulate, the first segment irregularly oval, the 

 second ^ longer, broadiy oval, both sparsely setose. Mesonotum 



