36 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.58. 



Chiefly remarkable for its broken servellus aud long tarsi. 



Female. — Length 5.5 mm., antennae 4.0 mm., ovipositor 0.5 mm. 



Head in front view very broad, the eyes large and prominent, 

 strongly convergent within; oral region protuberant; malar space 

 nearly as long as basal widtli of mandible; temples rather strongly 

 convex; head polished. Thorax polished ; notauli strong, prescutum 

 long; propodeum shagreened, weakly, briefly canaliculate medially 

 at base, noncarinate; legs long, slender, hind tarsus nearly as long 

 as tibia; stigma broad with radius in middle; intercubitus very short; 

 nerveUus distinctly broken in lower third, perpendicular. Abdomen 

 rather slender, shagreened, polished apically and on the apical areas 

 of the tergites, median areas distinct on tergites 2-4, weak on 5; 

 first tergite much longer than broad, sides rather wealdy divergent, 

 spiracles rather prominent; second tergite about as long as wide at 

 apex. 



Head black; mandibles, palpi, and scape and pedical below white; 

 face and clypeus piceous; thorax testaceous; pronotum and propo- 

 deum piceous; tegulae and humeral angles of pronotum white; front 

 and middle coxae and all trochanters stramineous; hind tibiae white 

 with small basal and large apical annuli fuscous, their tarsi fuscous 

 except pale annulus at base of basitarsus; legs otherwise of various 

 shades of testaceous; abdomen piceous, darker on apices of the ter- 

 gites and with a tendency to yellowish at bases of tergites. 



Male. — Length 5 mm. 



Eyes even more prominent than in female; thorax bright reddish 

 piceous; scutellum, mesopleura below, and mesisternum rufous; 

 lower margin and humeral angle of pronotum, propleura, a large spot 

 on upper angle of mesopleurum, and tegulae white; peopodeum and 

 abdomen as in female with a somewhat greater tendency to yellow 

 at the bases of the tergites; legs white except extreme bases of hind 

 coxae, base and obscure external stripe of hind femur, base and apex 

 of hind tibiae, hind tarsus, except white basal half of basitarsus, and 

 the same color pattern on the middle tibia and tarsus faintly indi- 

 cated, all of which are more or less infuscate. 



The type is from Illinois, while of the National Museum specimens 

 the female is from Los Angeles County, California, and the male from 

 Bolton, New York. 



SPECIES WRONGLY PLACED IN GENUS AND UNRECOGNIZABLE 

 SPECIES. 



Polysphincta acuta Provancher, Nat. Can., voL 12, 1880, p. 44, female. 



S. A, Rohwer, who has examined the type, says that what is left 

 of it (the abdomen and apices of the antennae are gone) is very like 

 Olisfojjyga canadensis Provancher. But the shape of the abdomen 

 aud the long ovipositor as described by Provanclier exclude it from 

 that genus. From Polysphincta its long ovipositor and short first 



