110 NEW YORK STATE MUSEUM 



with black. Thorax sericeous; raesothorax convex; scutellum and 

 postscutellum prominent; metathorax slightly depressed anterior 

 of the transverse carina; lateral carinae distinct. Wings hyaline; 

 marginal nervure thickened and slightly sinuate near the stigma; 

 cubitodiscoidal nervure usually strongly sinuate but not appen- 

 diculate, its bulla scarcely one fourth the width of the third dis- 

 coidal cell from its apex; two subtriaugular opaque spots occur 

 in the glabrous area of the cubitodiscoidal cell, the larger one 

 with no arcuate continuation along the margin of the glabrous 

 area, though a small chitinous line may be seen near the smaller 

 spot. 



Legs honey yellow; abdomen strongly compressed, darker at 

 the tip; first and second segments remarkably long and slender; 

 claspers of male subtriaugular, obliquely truncate, acute poste- 

 riorly. 



Length about 22 mm, wing spread about 26 mm. Described 

 from numerous examples. 



The cocoon is a silken, brown, tough, oblong oval object. 



Distribution. The recorded distribution of this insect is as 

 follows: New England, New York, New Jersey, Pennsylvania, 

 Virginia, Carolinas, Florida, Alabama, Illinois, Indiana, Missouri, 

 Iowa, Colorado, Arizona, Nevada, California and Canada. Ex- 

 amples of this species from Georgia, Oregon and Washington, in 

 addition to some of the states named above, occur in the collection 

 of the Academy of Natural Sciences at Philadelphia. Specimens 

 of this species are now before the writer from the following local- 

 ities: Kansas; California; Virginia; Fox Point, Alaska [Harri- 

 man Expedition '99] ; Flatbush N. Y., Victoria Tex., St Louis Mo., 

 Durham N. H., and Arizona, all being in the collections of the 

 United States National Museum. Specimens from Colorado, Las 

 Vegas N. M., Cheyenne Wy., and Michigan were lent to the 

 writer by Professor Gillette. Specimens from New York were 

 received from Mr L. BT. Joutel, and Mr W. W. Harrington kindly 

 sent examples from Grimsby Ont. (taken June 6), Toronto (taken 

 July 27, Aug. 24 and Sep. 3), 'Winnipeg (taken in June), Osoyoos 

 B. C. (taken in May) and from Ottawa, Canada. Specimens 

 from Maiden and Amherst Mass. (taken Aug. 1, 2, 12 and 21) 

 were lent to us by Prof. C. H. Fernald. The species is doubtless 

 distributed over the whole of the United States and the larger 

 portion of Canada. 



