182 
ORTHOPTERA. 
cloud neai - the middle of the liind margin, and a black line 
on the front margin ; hind thighs pale, with two large black 
spots on the inside ; hind shanks brown, with darker spines, 
and a broad whitish ring below the knees. Length J inch ; 
exp. above 1$ inch. 
This somewhat resembles the clouded locust, from which, 
however, it is easily distinguished by its much shorter anten- 
nae and the dusky cloud on the hinder margin of the wings. 
1 have captured it in pastures, in the perfect state, from the 
middle of May to near the end of July. I believe that it has 
never been described before. 
11. Lncusta ( Traqocephala ) viridi-fasciata. Green-striped Locust. 
(Plate III. Fig. 2.) 
Green ; thorax keeled above ; wing-covers with a broad 
green stripe on the outer margin extending from the base 
beyond the middle and including two small dusky spots on 
the edge, the remainder dusky but semi-transparent at the 
end ; wings transparent, very pale greenish yellow next to 
the body, with a large dusky cloud near the middle of the 
hind margin, and a black line on the front margin ; antennae, 
fore and middle legs reddish ; hind thighs green, with two 
black spots in the furrow beneath; hind shanks blue-gray, 
with a broad whitish ring below the knees, and the spines 
whitish, tipped with black. Length about 1 inch ; exp. from 
more than If to nearly 2 inches. 
This insect is the Acrydium viridi-fasciatum of De Geer, 
who was the first describer of it, the Gryllus Virginianus of 
Fabricius, the Gryllus Locusta chrysomelas of Gmelin, the 
Acrydium marginatum of Olivier, and the Acridium hemipte- 
rum of Palisot de Beauvois. It is remarkable that a species 
so strongly marked as this is should have been so profusely 
named. Palisot de Beauvois seems to have selected the most 
appropriate name for it ; for the green portion of the wing- 
covers is thick and opaque, and the dusky portion thin and 
semi-transparent, as in the wing-covers of Hemipterous in- 
