OF WASHINGTON, VOLUME XV, 1913. 39 



Aspilota stenostigma Provancher. 



Scotioneurus steonstigma Prov., Add. Faun. Canad. Hym.. 1886, p. 

 157. 



Female. Length 1.6 mm. Antenna; broken. Head transverse, the 

 occiput, vertex, frons and temples smooth and polished with scarcely any 

 pubescence; occiput concave; temples broad, about as wide as the eyes; 

 the vertex is divided by a shallow median longitudinal furrow; as viewed 

 from in front the head is shorter than wide, the face below the antenna 1 

 smooth and covered with rather long hairs; eyes elliptical; cheeks short, 

 clypeus prominent, its anterior margin convexly rounded, impunctate; man- 

 dibles tridentate, the median tooth slightly longer and more acute than 

 the two lateral; viewed from the side the face is slightly convex below the 

 antennse. 



Mesonotum smooth, polished, with sparse hairs, the parapsidal furrows 

 absent on the posterior two-thirds, slightly impressed anteriorly; a short, 

 shallow, longitudinal impression on the median line of the mesoscutum just 

 before the scutellar fovea; scutellum smooth, polished, the scutellar fovea 

 large and deep; mesopleurse smooth, polished, with a short longitudinal 

 more or less oblique crenulate furrow near the middle. Propodeum ob- 

 liquely truncate, with a short median longitudinal carina anteriorly before 

 the truncation, finely rugulose, the spiracles distinct, though not large; 

 metapleurse nearly smooth. 



Wings hyaline, the stigma linear, scarcely wider than the postmarginal 

 (metacarp) vein which is thickened slightly throughout its length; radial 

 cell reaching to the wing apex, first cubital cell small, separated from the 

 first discoidal and from the second cubital; second abscissa of radius more 

 than twice as long as the first transverse cubitus, and nearly four times 

 as long as the first abscissa; third abscissa of radius more than twice as 

 long as the second abscissa: recurrent nervure joining the second cubital 

 cell at an angle with cubitus so that the second cubital is five-sided. 



Abdomen about as long as the head and thorax, petiolate, compressed 

 into a sharp keel ventrally and at the apex; its first segment slightly wider 

 at the apex than at base, two and one-half times as long as wide, regulose; 

 following segments smooth and shining: ovipositor exserted about half 

 the length of the abdomen and upward curved. 



Color Scape, pedicel, palpi, mandibles toward the tips and legs strami- 

 neous; head and thorax brownish black; pleurae, propodeum and abdomen 

 except ventral segments one and two more or less piceus, nearly black; 

 tcgulac, wing veins and stigma yellowish brown, the stigma and marginal 

 veins slightly darker than the others: ventral segments one and two more 

 or less stramineous; ovipositor sheaths piceus. 



