20 THE CANADIAN ENTOMOLOGIST 



Ormosia megacera, sp. n. 



Related to 0. diver gens Dietz; antennae of the male elongated, 

 nodulose; anal veins strongly divergent; body coloration dark 

 brown; appendages of the male hypopygium strongly curved. 



Affl/e.— Length 3.3-3.7 mm.; wing 4.8-6 mm. 



Rostrum and palpi short, dark brown. Antennae dark brown; 

 flagellar segments greatly elongated, tapering at both ends, espe- 

 cially apically; hairs and verticils on the segments as long as the 

 segments themselves; whole antennae nearly as long as the body. 

 Head dark brown. 



Pronotum pale whitish. Mesonotal praescutum dark brown 

 with three still darker brown stripes, the median one very broad; 

 scutum brown, the lobes with darker centres; scutellum and pDst- 

 notum dark brown, sparsely gray pruinose. Pleura and sternum 

 dark brown, rather heavily gray pruinose; dorso-pleural membranes 

 dirty yellow. Halteres dark brown, the extreme base yellDwish. 

 Legs with the coxae pale gray; trochanters and femora pale, the 

 latter darker apically, tibiae and tarsi dark brown. Wings almost 

 hyaline, but with a faint, gray tinge; costal area a little more 

 suffused; stigma ill-defined; veins dark brown. Venation: cell 

 1st Mi open, the outer deflection of Mz lacking; anal veins strongly 

 divergent ; 2nd A short and straight. 



Abdomen dark brown, including the hypopygium; hypopygium 

 with the pleural appendages black, in the form of chitinized hooks 

 that are strongly curved. 



i/a6i/a/.— Northeastern United States. 



Ilolotype, cf , Simmon's Woods, Gloversville, Fulton Co., New 

 York; altitude 900 feet; June 22. 1916 (Alexander). 



Paraiopotypes, 2 cf' s. 



Related to 0. divergens Dietz (Trans. Am. Ent. Soc, vol. 42, 

 p. 144; 1916) which is reddish brown in colour, and the hypopygium 

 of the male very differently constructed. 



Genus Triniicra Osten Sacken. 

 Trimicra angularis, sp. n. 



Antennae black; head yellow with a black median line; prae- 

 scutum yellow with three dark brown stripes; pleura yellow with 

 two stripes; abdomen yellow with the segments marked with brown ; 

 wings gray with sparse brown markings. 



