PARASITIC WASPS OF BRACONID SUBFAMILY EUPHORINAE 19 
below, sometimes with only a row of 3 or 4 punctures; first abdominal tergite 
three times as long as broad at apex, weakly longitudinally sculptured, not cari- 
nate laterally, the petiole very slender, smooth. 
Both sexes occur. The male specimens studied have the antennae 
22- to 24-segmented, and have the frons, vertex, and occiput, the 
thorax mostly, and usually the abdomen beyond the first tergite, 
piceous. 
In addition to the type series of 5 specimens, which were reared 
from EHpitriz parvula Fab. in Tennessee, the National Museum has 
13 specimens reared from the same host at Colum»us, Ohio, in August 
and September 1934 by Alvah Peterson, 2 specimens from New Jer- 
sey reared from EL. cucumeris Harris, and 2 field-collected specimens 
from Maryland and Illinois, respectively. 
(7) MICROCTONUS VITTATAE, new species 
Very similar to epitricis (Viereck), with which it has been confused, 
but differing in its finely granular face, more closely sculptured and 
less slender first abdominal tergite, the presence of distinct lateral 
carinae on the first tergite from spiracles toward base, the somewhat 
punctate middle lobe of mesoscutum, and the relatively broader 
temples and cheeks. 
Female.—Length 1.8 mm. Head much broader than thorax; temples and 
cheeks broad and convex, nearly as broad as eyes, polished; face at narrowest 
point slightly broader than long, finely granular or shagreened, covered with 
short appressed hair; malar space about as long as basal width of mandible; 
eyes prominent; antennae nearly as long as body, 19-segmented; scape less than 
one and one-half times as long as thick; pedicel three-fourths as long as scape and 
a little longer than thick; first flagellar segment nearly as long as scape and pedicel 
combined, not, or only faintly, longer than second; basal three flagellar segments 
more slender than pedicel and also slightly more slender than following segments 
of flagellum; ocelli small; postocellar line more than twice diameter of an ocellus 
and nearly as long as ocellocular line; lateral ocelli slightly behind line of posterior 
eye margins; temples and cheeks weakly carinately margined behind, the occiput 
immargined, or the carina faint or broadly interrupted medially. 
Thorax narrow; notauli complete, punctate; lobes of mesoscutum not promi- 
nent, the middle lobe weakly irregularly punctured and distinctly hairy, the 
lateral lobes polished and bare; impression at base of scutellum deep, divided into 
two large smooth pits by a median carina; propodeum reticulated and more or 
less areolated, smooth at base each side of middle, rather strongly declivous be- 
hind and somewhat excavated medially on posterior face; mesopleurum smooth 
and shining, with a small rugulose area below; metapleurum weakly roughened, 
shining; legs slender; stigma more than twice as long as broad; radius originating 
slightly beyond middle of stigma; first abscissa of radius about half as long as 
width of stigma; second abscissa strongly curved; radial cell nearly half as long 
as stigma; nervellus longer than lower abscissa of basella but not distinctly longer 
than longest marginal cilia of posterior wing. 
Abdomen about as wide as thorax; first tergite not three times as long as wide 
at apex, longitudinally aciculated, carinate at sides before spiracles as well as 
behind; remainder of abdomen polished; ovipositor sheaths about as long as 
posterior femur. 
Head yellow; antennae dark brown, paler at base; thorax brownish yellow, 
piceous above; abdomen and legs brownish yellow; wings hyaline, stigma and 
veins pale brown. 
Type locality.—Columbus, Ohio. 
Type.—United States National Museum no. 49910. 
Host.— Phyllotreta vittata Fab. 
Described from the following 69 female specimens: The type and 
39 additional specimens reared by A. Peterson at the type locality, 
from the above host; 14 specimens reared by W. H. White at Arling- 
Wil 
