Descriptions of new species of Hymenoptera. 75 
OPHION. Fabr. 
1. 0. bilineatus. Honey-yellow; head yellow; thorax 
with two darker lines. 
Inhab. Indiana. 
Head yellow; antennse honey-yellpw; mandibles 
blackish at tip ; thorax with two somewhat reddish- 
brown lines almost obsolete ; wings with fuscous ner- 
vures; costal nervure and carpal spot honey-yellow; the 
latter dilated conspicuous; larger central cellule acutely 
angulated at tip; smaller central cellule angulated at the 
superior basal angle and with a very slight process, its 
terminal nervure almost obliterated on the outer half, its 
outer nervure almost obliterated in the middle and white 
in that part; the two terminal connecting nervures form- 
ing an acute angle; pleura paler than the thorax; abdo- 
men, second segment hardly as long as the first and 
longer than the third. 
Length seven-twentieths of an inch. 
2. 0. analis. Reddish-brown; head above black, be- 
neath the antennos yellow; abdomen black at tip. 
Inhab. Indiana. 
Head the antennse black; beneath the antennae 
yellow; occiput black, reddish-brown each side; an- 
tennse dark reddish-brown almost black, at base black; 
beneath somewhat paler, darker towards the base, radical 
joint yellow at base ; thorax reddish-brown, with a large 
blackish disk, divided into three wide lines by two im- 
pressed lines; sutures of the scutel and metathorax black: 
tvings the larger central cellule obtuse at tip; smaller cen- 
tral cellule with a small angle at tip, where it is widest, 
very obtusely rounded at the superior basal angle; do 
not meet and form an angle, carpal spot slender; pectus 
black; posterior thighs blackish at base, their coxae with 
