1313 NEW NORTH AMERICAN ANTIIOMYIIDAE (dIPTERa) 



base to apex on antero-ventral surface; hind tibia with two antero-dorsal 

 and three or four antoro-ventral bristles. Veins three and four very ron- 

 spicuously divergent at apices. Length, 10 mm. 



7^ypf__9; Gallatin County, Montana, July 12, 1900, (E. 



Koch), [Illinois]. 



In the arniatuiv of the legs and the short-haired arista this 

 species shows a departure from the general rule in this genus, but, 

 as persimihs has the arista almost the same, I place armata in 

 Mijdaea, though I am unable to ascertain whether the structure^ 

 of the penultimate abdominal segment corresponds with that of 

 vrbana and its allies. 



Mydaea discimana sp. ii. 



Male and /<'//<«/#.— Similar in color to prmmili!^, femora and bases of wings 

 yellow in both sexes. 



/Pe,„fj/(,._Structurally closely resembles pcrsimilis, but the fore tibia has 

 a strong posterior bristle at middle, and the apical joint of fore tarsus is very 

 conspicuously broadened, being as broad at the middle as it is long. 



Male.— Wery similar in general structure to the male of neglecla, the prealar 

 bristle shorter than in peraimilis, and the fore tarsus with the apical joint 

 slightly but distinctly broadened. Length, 7.75 mm. 



Type.— 9; New Bedford, Massachusetts, (Hough), [Illinois]. 

 Allotype.— d"; Chester, Massachusetts, May 28, 1912, (C. W. 

 Johnson). Par aty pes. —M&les and females; Chester, Massachu- 

 setts, August 5, 1911; Sharon, Massachusetts, August 3, 1909: 

 Xoi-th Adams, Massachusetts, August 16; Williamsburg, Massa- 

 chusetts, July 7, 1911; Glen House, New Hampshire, July 15, 

 191(); Bretton Woods, New Hampshire, June 24, 1913; Echo 

 Lake, Mt. Desert, Maine, July 12, 1918; Machias, Maine, July 21, 

 fC. W. Johnson). Eleven specimcMis. 



Mydaea neglecta sp. n. 



Malt' and fcnmlr. — Similar in color to pert^iDiilis and Nrlunid, the fore femora 

 of male largely blackened, and sometimes the l)ases of the mid ])air also. 



Structurally this species agrees closely with (liscimayia, differing in having 

 the apical joint of fore tar.si slender in both sexes. Length, 7 to 9 mm. 



Type. — cf ; Ramsey, New Jersey, June 5, 1916, [Illinois]. 

 Allotype.— 9 ; New Bedford, Massachusetts, August 30, 189(1, 

 (Hough). Paralypes. — Males; Plummer's Island, Maryland, INIay 

 10, 1910, (W. L. McAtee); Delaware County, Pennsylvania, 

 May 5, 1895 (named olone Walkei- ])y CcKiuillell, but according 

 to Sicifi, wlio li;is cxauiined the t\'pe of Walkei^'s si)e('ies, oloiie 



