1916.] NATURAL SCIENCES OF PHILADELPHIA. 525 



Lake, Juno 8, 1915 (Alexander); Tompkins County, Ithaca, May 13 

 to August 7, L910; Albany County, Albany, June 26, 1912 (Young); 

 Helderberg Mountains, June 12, 1915 (Alexander) ; Rockland County, 

 Wes1 Nyack, June 15, 1912 (W. Sheffield); Westchester County, 

 Tarn-town, June 9, 1914 (Frost). 



New Jersey, Bergen County, Ridgewood, July, 1911 (Leonard); 

 Mercer County, Princeton, June 18, 1915 (Alexander). 



Maryland, Montgomery County, Forest Glen, July 6, 1914 

 (McAtee); Plummers Island, May 26, 1914 (Shannon). 



District oj Columbia, Washington (Osten Sacken); the type-locality. 



Virginia, Alexandria County, Rosslyn, May 11, 1913 (Knab); 

 Fairfax County, Four-mile Run, July 13, 1912 (Knab). 



North Carolina, Buncombe County, Black Mountains, June 

 13, 1912 (Beutenmuller); Jones County, Pollocksville, July 8, 1915 

 (Alexander) . 



Michigan, Walnut Lake, June 26-28, 1907 (Needham). 



Saskatchewan, Farewell Creek, September (Mrs. V. A. Anthony). 



Missouri, St. Louis County, West St. Louis, May 12, 1914 (W. V. 

 Warner) . 



Kansas, Pottaw r atomie County, Onaga (Crevecceur) . 



Montana, Beaver Creek, altitude 6,300 feet; August, 1913 (Hunter). 



The wing is shown on Plate XXVI, fig. 33. 



The male hypopygium (Plate XXVI, figs. 83-85) with the ninth 

 pleurite elongate, rather slender, the dorso-lateral angle produced 

 caudad in a slender, fleshy lobe that is provided with numerous long 

 hairs; ventral pleural appendage (v) a long, slender, pale brown 

 lobe that is almost straight, slightly expanded toward the blunt 

 apex, provided with numerous setigerous punctures; dorsal pleural 

 appendage (d) two-lobed, the caudal lobe a powerful, heavily chitin- 

 ized, curved spine that is directed cephalad at its tip, provided with 

 two or three small, acute denticles before the apex; the ventral arm 

 is again bifid, the caudal portion a sharp, chitinized, feebly curved 

 spine, the cephalic portion a small, subfleshy lobe with several hairs 

 and short spines. Penis-guard very elongate, pale, narrowed at the 

 apex, at the base on either side with a subtending, slender, subchi- 

 tinized rod that is more or less flexible. 



Gonontyia obscura Doane 8 is unrecognizable; the type in the National. 

 Museum is a broken female that is close to subcinerea, although its 



8 Journal of the New York Entomological Society, vol. 8, p. 192, PI. 8> fig. 7.' 

 (1900), described as a Phyllolabis. 



