ART. 23 EEVISION OF MACROCENTKUS — MUESEBEOK 43 



propodeum; legs entirely yellow; wings clear hyaline; stigma dark 

 brown, veins somewhat paler; abdomen brownish yellow, more or 

 less blackish apically. 



Type.—U.S.^M. No. 43496. 



Type locality. — Ithaca, N. Y. 



Remarks. — Described from a single female specimen. 



30. MACROCENTRUS FUSCIPENNIS, new species 



Resembles pallisteri, bnt differs particularly in the unusually small 

 nonprominent eyes, the broader face, the shorter robust abdomen, 

 the relatively shorter second abdominal tergite, and the infumated 

 wings. 



FeTTiale. — Length 5 mm. Head rather thin antero-posteriorly ; 

 eyes unusually small, hardly half the height of head, and scarcely 

 extending beyond outer margins of temples; face fully twice as 

 broad as long, polished; malar space as long as clypeus; clypeus 

 strongly convex, the distance between clypeal foveae hardly equal 

 to distance from foveae to eyes; mandibles large; vertex convex, 

 rising considerably above upper level of eyes ; ocell-ocular and post- 

 ocellar lines subequal, about twice the diameter of a lateral ocellus; 

 maxillary palpi slightly longer than width of head, the longest seg- 

 ment not distinctly as long as second segment of antennal fiagellum ; 

 antennae slightly longer than the body, 45-segmented. 



Thorax rather stout; prescutum prominent, rather abruptly de- 

 clivous in front; scutellar furrow not large; scutellum more than 

 half the length of propodeum; propodeum broad, delicately rugulose, 

 with some irregular, transverse raised lines on posterior half, the 

 lateral carinae complete, strong; sides of pronotum, and the meso- 

 pleura and metapleura, smooth; prepectal carina complete; meso- 

 sternal furrow not deejDly impressed posteriorly; posterior coxae 

 faintly transversely lineolate above toward apex; longer calcarium 

 of posterior tibia about half as long as metatarsus; apical teeth 

 of trochanters well developed ; radius arising from beyond middle of 

 stigma; radial cell not nearly attaining extreme apex of wing; first 

 cubital cell about as long as first discoidal ; second abscissa of cubitus 

 much more than half the length of recurrent vein ; nervulus intersti- 

 tial with basal vein; submedian cell weakly hairy at apex; radiella 

 weakly sinuate, radiellan cell a little the narrowest at the middle; 

 mediella fully twice lower abscissa of basella ; nervellus not inclivous ; 

 upper abscissa of basella interstitial with transverse abscissa of sub- 

 costella. 



Abdomen not distinctly longer than head and thorax combined, its 

 greatest width about equal to width of mesoscutum ; first tergite not 

 twice as long as broad at apex, deeply impressed at base, entirely 



