434 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
tune to discover it in my first season's collecting. This one is not 
involved in the tangle of nomenclature woven around the others. 
The first two are upland species and are dainty, attractively 
colored little "grasshoppers" which in late summer literally 
swarm in favorable localities and must in the aggregate do a large 
amount of damage to vegetation, especially in dry seasons. The 
salt-marsh species, while less pleasing in color and less important 
economically, is no less interesting from its restriction to a 
peculiar habitat and its close approximation in hue to the tints 
of its environment. 
In general, these are Locusts of small size and rather slender 
form, with short antennae, and present a wide diversity of colors, 
ranging from nearly uniform brown or green to strikingly con- 
trasted blackish patterns on the brown or green ground color, 
and occasionally with rose-red tegmina. Common variant pat- 
terns are primarily based on the breaking-up of the ground 
color into lengthwise areas by a dusky lateral stripe extending 
from each eye backward along the side of the disk of the pronotum 
and the middle of the tegmina; this is cut obliquely by the pale 
lateral carinae on the metazone and more or less broken by pale 
spots or broken up into dark spots. In addition, a pair of longi- 
tudinal dark stripes on the top of the head is of frequent occur- 
rence; and the sides of the body and the outer face of the hind 
femora are often much varied, a metepisternal pale stripe and 
bands on the hind femora being often conspicuous. 
The two upland species are replicas of each other in coloring; 
the Salt-marsh Locust exhibits the same patterns but in less 
striking contrast. 
Besides the distinctions given in the key, which is condensed 
for the sake of brevity from that in my "Notes" (Psyche, vol. 7, 
p. 325, 1896), the following characters, likewise drawn therefrom, 
will prove additional aids to discrimination in doubtful cases. 
It must always be remembered, in regard to closely allied species, 
that individuals may vary so widely that specimens frequently 
cannot be determined with certainty from a single character, 
and the sum of many must be used. 
Speciosa. — Foveolae of vertex shallow, triangular, scarcely diacernible. 
Tegmina about reaching end of hind femora, often shorter, sometimes longer, 
tapering toward apex; ulnar area in male coarsely, often regularly, reticulated, 
