70 Descriptions of 7iew species of Hymcnoptera. 
as in the preceding;, but the superior side is somewhat 
shorter; tergum, first segment with a triangular band 
at tip; pleura with a white, longitudinal, abbreviated 
line beneath the wings, and one or two spots behind; 
beneath with a white spot before the anterior and inter- 
mediate coxae; tibise white line on their exterior sides; 
posterior tarsi, first and second joints with a white line 
above. 
Length more than half an inch. 
Second joint of the maxillary palpi dilated as in Pel- 
TASTES,. lUig. 
4. I. vinctus. Black; abdomen rufous. 
Inhab. Indiana. 
Body black; head above the antennae and occiput, 
black; orbital line interrupted behind, and all beneath 
the antennae except the incisures, white; antennse, basal 
joint beneath, Avhite; collar with a white line; thorax 
with a short white line above the anterior wing and an- 
other below it, from the anterior extremity of these lines, 
a white line proceeds, and is interrupted before; two im- 
pressed dorsal lines obsolete behind; scutel and obsolete 
point behind it, white; ivi7igs, central cellule pentangu- 
lar, transverse; metathorax with somewhat elevated 
rugae, enclosing a pentangular space, from the angles of 
which abbreviated lines diverge, the two posterior of 
which terminate at the short tubercles; feet, anterior and 
intermediate pairs, pale whitish yellow, the coxae white 
with a black spot behind, the thighs with a black line 
•and tibiae of the anterior pair also with a black line; pos- 
terior pair black, 2nd, 3rd, and 4th joints of the tarsi, 
white; abdomen bright rufous, immaculate. 
Length $ half an inch. 
