ART. 14 ICHFEUMON-FLIES OP GENUS POLYOYRTUS CUSHMAN 29 



lobes flattened; mesopleural furrow foveolate throughout, prepectal 

 furrow only above, humeral angle rugulose, subalar tubercle carinate ; 

 propodeum flat in basal middle, carina broadly curved toward front, 

 spiracles large elongate, apophyses rather small, slightly compressed, 

 as thick in middle as at ends, inner calcarium little more than a third 

 as long as basitarsus; areolet small, recurrent strongly antef ureal, 

 nervulus interstitial, postnervulus broken at middle, nervellus 

 nearly four times as long as broad at base and as long as first; 

 sheath as long as hind tibia. 



Head black and white ; face, except in middle above, clypeus, man- 

 dibles, frontal and superior orbits, spot in posterior orbits, and an- 

 nulus embracing flagellar joints 5-11 white ; maxillary palpi strami- 

 neous, labial palpi fuscous; pronotum, mesonotum, metanotum, and 

 propodeum basad of carina black; propleura, anterior, lower, and 

 humeral margins of pronotum, apex and sides of scutellum and 

 basal carinae, postscutellum and apophyses white ; thorax and propo- 

 deum otherwise pale testaceous; front and middle legs testaceous, 

 paler basally and anteriorly, their tarsi largely brown; hind leg 

 testaceous, trochanter and femur very pale below, tibia yellowish, 

 tarsus whitish ; wings hyaline, venation brown, stigma paler, tegulae 

 white with apex stramineous; abdomen black above, whitish lat- 

 erally, first tergite apically, second basally and apically, the 

 gastrocoeli, and other tergites apically, whitish. 



Guatemala. Known only from the unique type. 



28. POLYCYRTUS (POLYCYRTUS) INQUINATUS, new species 



Feinale. — Length 13 mm. 



From cockerellae, to which it is rather closely related, it differs as 

 follows: Vertex hardly concave; eyes comprising much less than 

 two-thirds total width of head ; malar space subequal to basal width 

 of mandible; cheeks in front view convex; occipital carina very 

 nearly parallel to posterior margin of eye ; temples strongly oblique, 

 nearly half as long as short diameter of eye ; diameter of ocellus less 

 than two-thirds as long as ocell-ocular line and little longer than the 

 postoccellar line; basal joint of flagellum only about six times as 

 long as thick. Epomia longer, causing the tumid humeral welt of 

 pronotum to appear angulate from above ; prescutum more elevated ; 

 subalar tubercle not carinate ; propodeum slightly impressed in basal 

 middle; carina nearly straight, spiracle broadly oval; apophyses 

 longer, more slender and hardly compressed ; hind femur more slen- 

 der ; areolet larger, recurrent nearly interstitial, nervulus antef ureal. 

 Second tergite barely three times as long as broad at base; sheath 

 hardly as long as hind tibia. 



Posterior orbits white, interrupted behind top of eye; annulus 

 beginning on sixth joint of flagellum; lateral margin of mesoscutum 

 pale reddish; scutellum black at sides; spot below subalar tubercle 



