NO. 1986. NEW PARASITW HYMENOPTERA—ROHWER. 355 



scutum medianly transversely striate, laterally with a few large punc- 

 tures; mesepisternum shining, practically impunctate; propodeum 

 coarsely punctured; basal area separated from the areola by a short 

 longitudinal furrow; basal area triangular in outline, sides but little 

 shorter than its basal width; areola heptagonal, the posterior part of 

 the lateral defining carina slightly longer than the anterior part, 

 areola coarsely reticulate; lateral areas of dorsal aspect of the propo- 

 deum transversely wrinkled; propodeum not dentate laterally but 

 sharply angulate; first abdominal segment punctato-striate, basally 

 with poorly defined longitudinal carinas; the second abdominal seg- 

 ment transversely striato-punctate; third abdominal segment trans- 

 versely striato-punctate but more finely so than the second; the third 

 and folio whig segments finely, transversely aciculate; transverse 

 median of the fore wings almost squarely interstitial with the basal 

 but really slightly beyond. Black; a white annulus on the antennae 

 beyond the middle; posterior coxae rufous; wings hyaMne; venation 

 dark brown. 



Apalachicola, Florida. Described from two females collected by 

 W. F. Fiske and recorded under the Bureau of Entomology No. Hopk. 

 U. S. 3381a. 



Type.— C&t. No. 15366, U.S.N.M. 



XYLONOMUS (MAEROPHORA) YUKONENSIS, new species. 



This species is related to the foregoing one, but may be separated 

 by the areola being but little longer than its greatest width and the 

 posterior portion converging posteriorly. 



Female. — Length to the apex of the abdomen 10 mm., length of 

 the ovipositor 8 mm. Face transversely, irregularly striate; a faint 

 tubercule between the bases of the antennae; area between the 

 antennae and the ocelli shining, practically impunctate; posterior orbits 

 shining, practically impunctate; anterior face of the pronotum finely 

 striate on a granular surface, ventrally and posteriorly foveolate; 

 dorsal lateral angles of the pronotum subdentate; scutum and 

 prescutum shining, impunctate; notauli transversely striate; poste- 

 riorly the apex of the scutum is rather coarsely reticulate; mesepis- 

 ternum shining, practically impunctate; propodeum opaque, obliquely 

 irregularly striate; areola and basal area separated by a transverse 

 carina; basal area trapezoidal in outline, about twice as wide ante- 

 riorly as posteriorly; areola about one and one- third times longer 

 than broad, hexagonal in outline, greatest width occurring at the 

 anterior third, posteriorly converging; dorsal lateral angles of the 

 propodeum subdentate; first abdominal segment finely granular 

 basally, posteriorly reticulato-granular with two faint but complete 

 longitudinal carinae; second and following abdominal segments 

 opaque, finely reticulate; transverse median of the fore wings a little 



