ART. 16 WASPS OF THE SUBFAMILY BRACONINAE MUESEBECK 37 



not greatly reduced, more than half as long as the second or fourth 

 segments: frons only very slightly impressed; ocell-ocular line about 

 twice as long as the diameter of an ocellus; head only slightly hol- 

 lowed out behind; temples not swollen, receding gradually behind 

 the eyes; antennae rather stout, broken, 28 segments remaining; 

 scape large and stout; pronotal pits rather large; mesoscutum com- 

 pletely polished, the parapsidal furrows entirely wanting; a conspic- 

 uous median longitudinal impression posteriorly on mesoscutum; 

 furrow in front of scutellum with several distinct pits; scutellum 

 shghtly convex, polished, not margined at apex; propodeum polished, 

 with two median carinae which meet before attaining the apex; pro- 

 podeal spiracle small, short oval; pro, meso, and meta pleura com- 

 pletely polished; mesopleural furrow only weakly indicated, smooth; 

 posterior coxae large, elongate; inner spur of hind tibia about half 

 as long as the basitarus; second cubital cell large, sub triangular, 

 sessile; first abscissa of mediella shghtly shorter than the second; 

 nervellus straight; discoidella entirely wanting; abdomen fully as 

 long as the head and thorax combined, completely polished; first 

 tergite about as broad at apex as long, without two distinct dorsal 

 longitudinal keels; second and third tergites nearly twice as broad 

 as long, each with a weak, smooth, transverse impression; ovipositer 

 sheaths longer than the abdomen, but shorter than the body. Head 

 and thorax entirely black; the palpi whitish, black at base; anterior 

 and middle legs black, their tarsi brown with the apical segment yel- 

 lowish; posterior coxae and trochanters black, their femora entirely 

 red, their tibiae and tarsi blackish; wings strongly infumated; ab- 

 domen red. 



Tyye—C?it. No. 28685, U.S.N.M. 



Type locality. — Lawrence, Kansas. 



Described from a single specimen collected by Hugo Kahl, July 8, 

 1896. 



10. BASSUS AZYGOS (Viereck) 



Lytopylus azygos Viereck, Trans. Ivans. Acad. Sci., vol. 19, 1905, p. 267. 

 Microdus agathoides Viereck, Trans. Kans. Acad. Sci., vol. 19, 1905, p. 277. 



Type. — The holotypes of both azygos and agathoides are in the col- 

 lection of the University of Kansas. 



A comparison of the type specimens shows conclusively that they 

 are conspecific. No importance can be attached to the slight color 

 differences in view of the variations in color found in related forms. 

 Face distinctly broader than long, polished; malar space about half 

 as long as the eyes; frontal impressions immargined; temples gradu- 

 all}^ receding; parapsidal furrows wanting; mesoscutum with a slight 

 median longitudinal impression posteriorly; propodeum mostly 

 smooth with a rather large median area that is open behind, and 



