ART. 28 CH ALGID FLIES NORTH OF MEXICO BALDUF 21 



flagellum light brown; pronotiim uniformly concolorous with head, 

 except sternum, which is black: mesothorax deeper yellow, ante- 

 rior portion and sometimes entire front edge under pronotum, lower 

 portion of axillae, and sternum, black ; submarginal band faint light 

 brown, stigma darker, band extending two-thirds across wing, nar- 

 rower than length of stigma, stigmal vein not involved in band, 

 proximal margin almost straight, slightly oblique basad. distal mar- 

 gin broadly rounded, apex rounded, secondary band lacking; meta- 

 thorax mostly black, propodeum likewise on anterior third, on groove 

 and sternum, rest yellow; coxae to femora yellow like head and pro- 

 notum, tibiae darker yellow, tarsi of middle and hind legs more or 

 less brown ; petiole black and yellow, abdomen brownish yellow, ex- 

 cept top and end of ovipositor sheath, which are brown to black. 



Head slightly more than half as long as wide, forehead rising 

 sharply above inner margins of eyes; cheeks, labrum, and malar 

 space smooth, rest of head strigose wrinkled, moderately punctate, 

 except anterior part of ocellar area, which is finely punctured, all the 

 parts of the head moderately and inconspicuously hairy; scape as 

 long as pedicel, Fl and F2 combined, Fl slightly shorter than pedi- 

 cel and a fourth longer than F2; F2 to F5 subequal in length and 

 broadening gradually toAvard club, each slightly longer than broad, 

 the last barely so, club nearly as long as F3 to F5 combined and 

 somewhat blunt, flagellum moderately hairy, hairs whitish; thorax 

 coarsely punctured above like the head, and similarly hairy, pro- 

 thorax more than half as long as broad and about as wide as meso- 

 thorax; mesopleura aciculate and finely punctate; submarginal vein 

 bearing a row of 11 or 12 setae; apical half of abdomen sparsely 

 hairy, sheath of ovipositor moderately so, surfaces of segments 

 smooth, shining. 



Male. — Length, 2.3 mm,, slenderer than female; color, proportions, 

 sculpturing, and vestiture in general like those of female, except as 

 follows: Anterior margins of mesonotum (under pronotum) its en- 

 tire width, and most of propodeum. black; scape not reaching mid- 

 dle of F2, pedicel slightly shorter than Fl, F2 slightly longer than 

 F3 and F4, latter equally long and nearly a half longer than thick 

 and barely wider than Fl and F2, club slightly broader than F4. 



Type locality. — Penn Yan, N. Y. 



r?//>e.— Female, U.S.N.M. No. 20246. 



Redescribed from the type, the allotype, two male paratypes, and 

 a series of the original specimens of both sexes, all reared by Dr. 

 W. J. Phillips at Penn Yan and Auburn, N. Y., in 1915 in connection 

 with his study of Harmolita {Isosoma). These specimens bear 

 Webster No. 9355. Three older specimens, two females and a male, 

 on one card are labeled " Parasit No. 6, Isosojiia hordeV^ 



