153 



Chalcomyia aerea Loew. 



This species was described by Loew (Cent., no. 10, p. 53) from 

 Illinois. It has been reported from Nebraska, Ohio, Massachu- 

 setts, New York, Pennsylvania, Maryland, Virginia and North 

 Carolina. 



Chalcomyia cyanea Smith. 



Chalcomyia cyaneus Smith, Proc. Ent. Soc. Washington, vol. 14, p. 119, 1912. 

 Chalcomyia calcitrans Curran, Can. Ent., vol. 53, p. 260, 1921. 



Only males of this species are known. Originally described 

 from Franconia, New Hampshire, and later recorded (as calcitrans 

 Curran) from Orillia and McDiarmid, Ontario. 



Chalcomyia anomala, new species. 



Female. — Medium-sized, black species, 9 mm. Head, frontal aspect, trian- 

 gular; front at vertex as broad as length of antenna; widening downward, and 

 at base much broader than length of arista ; antenna and arista blackish ; face 

 deeply concave in profile; antennal base projecting beyond epistoma; body pile 

 short, pale, inconspicuous; scutellum well developed, its margin rimmed; abdo- 

 men broadly oval, flat ; wings smoky, darkened basally ; discal cross-vein slightly 

 clouded; discal cross-vein joining discal cell just before its middle, nearly straight 

 and perpendicular; posterior cross-vein subequal to section of fourth vein above 

 it; squama white, plumula brownish; halteres orange. 



Holotype, female, Clementon, New Jersey, May 14 (C. W. Johnson, in his 

 collection). I wish to thank Mr. Johnson for his kind favor in lending me this 

 specimen for study. 



Chalcomyia depressa, new species. 



Description. — This species may be easily recognized by its entire bluish- 

 black color of body and black legs; small and brownish antennae; short and 

 yellowish arista; flattened thoracic dorsum; abdomen somewhat constricted 

 basally, broader behind; second and third tergites opaque posteriorly; smoky 

 wings; tip of first posterior cell not acute, the petiole beyond nearly as long as 

 discal cross- vein; pile very inconspicuous. Other characters are in the key. 



Type locality. — Craig Mountains, Idaho. 



Type.— C&t. No. 27,835, U. S. National Museum. Holotype, male, Craig 

 Mountains, Idaho (J. M. Aldrich). Allotype, female, Mt. Moscow, Idaho, 

 July 1, 1909 (J. M. Aldrich). 



