11 
This handsome locust is most commonly met with in the region lying 
south of the fortieth degree of north latitude, but is by 10 means ab- 
sent from all the territory north of that parallel. It occurs aorthof 
this line in Nebraska, South Dakota. Iowa, Illinois. Indians!. Michigan, 
Ohio, Pennsylvania, New Jersey, and perhaps even New York, it does 
not, however, become destructive much beyond the Gulf States. It is 
the chief destructive species of Eucatan, Central America, and sooth 
ern Mexico. In fact, it is very closely allied to the large Wandering 
Locust of the Orient (Schistocerca peregrina)^ and by some authors Lb 
claimed to be only a variety of that species. Be this as it may, every 
warm country of the globe, island, or continent lying within the trop- 
ics or within the adjoining 15 degrees of the temperate zones has one 
or more of these large locusts that show a wonderfully close relation- 
ship to our Sehistocerca americana. Most of them are also frequently 
destructive, while a number of them are exceedingly migratory in their 
habits. 
THE LARUE GREEN BUSH-LOCUST. 
Acridium shosliont Thos. 
Fig. 2.— Acridium ihothone— natural size (original). 
This insect is described by Prof. Thomas as follows in his report on 
the Orthoptera collected by the Wheeler Expedition in the Southwest : 
Female. — Vertex nearly horizontal; sides angularly expanding in front of thi 
llat frontal costa prominent, sides parallel, sulcate from the ocellus downward, above 
the ocellus somewhat gibbons and punctured : la t mi I carina? verj prominent, parallel. 
Pronotum Blightly expanding posteriorly, coarsely and reticulately punctured; 
midian carina distinct, severed by the three transverse impressions. Tegmina and 
wings passing the abdomen. Cerci verj short, broad at the base, narrowed and 
rounded at the apex. Posterior femora much enlarged at the base; posterior tibia 
considerably enlarged at the apex. Prosternal •-pine robust, cylindrical, and nearly 
straight. Pectus punctured. Abdomen of the male somewhat elongated; cerci very 
broad and flat, very slightly and obtusely notched at the apex, w hich is bent upward 
over the last segment ; subanal plate elongate, turned upward, with a distinct square 
notch at the apex. 
Dark olive-green. Ocelli bright transparent amber; eyes brown; cheeks yellow- 
ish, with a dark green stripe extending downward from the eyes. The pronotum 
