410 JOURNAL OF THE WASHINGTON ACADEMY OF SCIENCES’ VOL. 13, No. 18 
developed lateral folds and a distinct median carina; propodeum laterally, 
hind coxae above, and sides of the abdomen beneath, distinctly hairy; legs 
normal, the hind tibiae with one spur; wings fully developed, submarginal 
vein more than twice as long as marginal, stigmal subequal to marginal, post- 
marginal slightly longer than marginal; abdomen subpetiolate, as broad as 
the thorax and about as long as the thorax, elliptical in outline, depressed 
above and slightly convex beneath, the apices of ovipositor sheaths barely 
exserted. 
Peridesmia phytonomi new species. 
If the above conjectures regarding aquisgranensis are correct this species 
may very possibly be asynonym. Aside from the absence of a neck on the 
propodeum the male apparently differs from Mayr’s description only in that 
the smooth area on the posterior orbit does not extend to the vertex but 
terminates a little below and behind the top of the eye or a considerable dis- 
tance from the lateral ocellus. 
Female—Length 1.75to2mm. Head with strong close reticulate-punctate 
sculpture, the punctures on frons somewhat larger than those on vertex and 
face; clypeus with converging striae; malar space as long as the eye; ocellar 
triangle very low; postocellar line barely longer than the ocellocular line; 
antennae weakly clavate; scape reaching to front ocellus; pedicel twice as 
long as thick at apex; first ring-joint about half as long as the second which is 
more than twice as broad as long; funicle joints increasing very slightly in 
thickness from first to last, the first a little broader than long, second sub- 
quadrate, sixth a little less than twice as broad as long; club ovate, barely 
thicker than the sixth funicle joint, about as long as the three preceding 
funicle joints together, the first and second joints broader than long, apical 
joint conical and about as long as broad at base; dorsum of thorax sculptured 
like the head, the punctures on mesoscutum very slightly coarser than those 
on scutellum; propodeum punctate, a little more strongly so medially that 
laterally; spiracles elliptical; mesopleura punctate but with a smooth area 
below the base of hind wing; legs rather slender; hind coxae outwardly reti- 
culate; forewing bare of discal cilia at base, the apex of costal cell with 
a few cilia, and the surface of wing from a little basad of apex of sub- 
marginal vein outwardly to apex of wing rather closely set with short 
cilia except immediately behind the base of marginal vein where the ciliation 
is weak and sparse; hind wing sparsely ciliated at base and more strongly so 
beyond the vestigial basal vein; abdomen polished, the petiole very short; 
the first segment (not counting the petiole) comprising about one-third the 
total length; following segments subequal. Head and thorax dull coppery 
green; antennal scape reddish testaceous basally, shading into dark brown 
beyond the middle, pedicel and flagellum brownish-black; coxae all concolor- 
ous with the thorax, rest of the legs dark reddish testaceous; abdomen above 
mostly purplish-black but with the base and apex more or less metallic green, 
the under side concolorous with the thorax but more shining; wings hyaline, 
the venation dark brown; tegulae testaceous. 
Male—Length 1.5 to 1.75 mm. Smooth area on head narrowest at base 
of mandible, becoming gradually broader on the cheek and broadest behind the 
eye and terminating at a point on the eye-margin about as far below the vertex 
as the lateral ocellus is distant from the eye; abdomen shorter than the thorax 
and about as broad as thorax, elliptical in outline; antennae more slender than 
in the female, the funicle joints all subequal and subquadrate, the scape 
entirely testaceous and the pedicel and flagellum brownish testaceous. Other- 
wise agrees with description of the female. 
