Descriptions of new sj^ecies of Hymenopiera. 79 
Inhab. Indiana. 
Body polished; head green with a violaceous reflection, 
each side before vertically striate; occiput transversely 
striate; antennse, flagellum fuscous; thorax transversely 
and longitudinally striated, violaceous, the collar punctu- 
red, green; j-cf/Ze/ much elongated, entire; wings dusky 
on the apicial half; abdomen very short, wide, triangu- 
lar, very convex above and beneath; anterior half, viola- 
ceous, posterior half, green with a violaceous reflection; 
tarsi j^ellow. 
Length one-fiith of an inch. 
2. P. hyalinus. Green; wings hyaline;. 
Inhab. Pennsylvania. *' 
Body green, punctured; scutel much elongated, slight- 
ly emarginate; wings hyaline, immaculate; abdomen 
very short, wide, triangular, very convex above and be- 
neath, violaceous; yellowish; tibia? honey- 
yellow. 
Length less than one-fifth of an inch. 
Difiers from the preceding in being destitute of the 
dusky wing tips and in having punctures instead of striae. 
SPALANGIUS, Latr. 
S. politus. Bluish-green; tergum with a cupreous 
band at base. 
Inhab, Virginia. 
Body bluish-green, varied with violaceous, densely 
punctured; front grooved to receive the basal joint of 
the antennae; flagellum fuscous; wings hyaline, slightly 
dusky; scutel somewhat prominent; abdomen a little 
depressed; first segment brilliant cupreous; incisures 
glabrous; terminal segment longer than the others to- 
gether, forming at tip a narrowed, carinated black pro- 
