LONG 3 SECOND EXPEDITION. 233 



low band on the posterior margin ; second segment with a yellow 

 band on the posterior submargiu somewhat sinuated before, and 

 an oval, oblique, yellow spot on the middle of each side; third and 

 fourth segments with each an abbreviated, whitish, submarginal line 

 behind ; venter with a spot at tip of the first segment, and a sub- 

 marginal band on the second behind. 



Length from nine-twentieths to more than three-fifths of an 

 inch. 



Var. a. Spot on the second segment of the tergum elliptical. 



Var. 0. A pale yellowish spot on each side of the scutel, and 

 nearly in a line with it. 



This species is very closely allied to the coarctata Fabr. of 

 Europe, but the whole of the hypostoma is yellow, the line be- 

 tween the antennae being only a process from it ; there is no yel- 

 low point beneath the wings ; none on the first segment of the 

 tergum; and the bands on the third and fourth segments are 

 always much abbreviated, never extending to the sides or upon 

 the venter. 



Like the coarctata, this species constructs for each of its eggs 

 a hollow globe of earth, with a short ascending neck, the rim of 

 which is sometimes widely outspread horizontally ; it is often 

 built around a twig of a bush for support, as represented by 

 Degeer, (Hist, abregee des Insectes, vol. 2, pi. 1G, fig. e.) some- 

 times the nest occurs simply attached to the superior page of a 

 leaf. The egg deposited in this globe in June, is inclosed with 

 a sufficient supply of food, [346] consisting of the larvsc of some 

 of the nocturnal Lepidoptera. Early in July or towards the 

 middle of that month, the perfect insect makes its way through 

 the side of its dwelling. The form of the first segment of the 

 abdomen of our species, is similar to that of Schaefier's represen- 

 tation of his Vesj)a nona, (Icon. vol. 1, pi. 53, fig. 10,) which is 

 proportionally much smaller than in Degeer's figure of the coarc- 

 tata. This species is found as well in Pennsylvania us in the 

 North-west Territory snd Missouri. 



2. E. verticalis. — Black; hypostoma above, anterior tho- 

 racic margin, scutellar line, posterior submargins of the abdomi- 

 nal segments, and spot each side on the finet and second segments, 

 yellow; metathorax with a vertical spot each side at tip. 



Inhabits Pennsylvania. 



