21 
also favor the increase of this one and others of our " native" species. 
Hence when we hear of the increase and spread of th<- former, we may 
also look for the latter to become more numerous. 
By keeping down weed patches and by plowing waste places about 
fence corners, along ravines, the edges of groves and old roads, this 
insect can usually be kept moderately scarce and harmless. 
THE DETESTABLE LOCUST. 
Fig. 9. — Mflanopliis fcedus: a, male— natural size; 
b, female anal characters — enlarged (original). 
(Melanoplti8 fcedu8 Scudd.) 
The locust which is known by the above name has not yet become 
recognized as one of those which is considered injurious; but its pres- 
ence in unusual numbers during 
the past two years in portions of 
Idaho are sufficient grounds for 
including it with these injurious 
species. Even if it has not yet 
committed such devastation, it 
is apt to do so in the near future 
should climatic and other condi- 
tions continue favorable. It can 
at once be recognized from the accompanying illustration (Fig. 0) and 
the following description : 
Of medium, or rather large size. Head rather large, not elevated, slightly arched. 
Eyes pretty large, hut not prominent; vertex between the eyes as broad or half 
as broad again as the first antennal joint; foveola shallow or moderate, with low, 
stout, nearly parallel hounding walls, and seareely expanding in front; frontal 
ridge stout, well advanced, subequal, scarcely enlarged downward, above flat at 
the ocellus, and below a little and broadly Bulcate. Proriotum simple, the posterior 
lobe coarsely and faintly punctate, expanding very slightly, and, on either side 
anteriorly, depressed a little above; the anterior lobe narrowed a little in front, 
hut above only; both the transverse sulci equally distinct and continuous through- 
out, median carina slight and confined to the posterior lobe, lateral carina- suh- 
bbsolete. Tegmina extending a little, or considerably beyond the tip of the abdo- 
men. Terminal ventral segment of the male abdomen scoop-shaped, hut slightly 
produced at the apex, the edge entire; supra-anal plate triangular, bluntly pointed, 
considerably longer than broad, the sides nearly straight, slightly puckered in the 
middle; the marginal apophyses of the preceding segment consist of a wavy, de- 
pressed, conical, pointed projection diverging at nearly right angles, about half as 
long as the cerci. Anal cerci forming very simple compressed lamina', the basal 
three-lift lis straight, tapering a little and directed backward and a little upward, 
the apical two-fifths also straight, enlarging slightly, keeping the same direction 
but bent a little inward, the outer surface a little concave, the extremity squarely 
docked, its corners rounded; basal tooth of lower valves of the ovipositor of the 
female sharp, triangular, hut much broader than long. 
The general color is a dirty cinereous above, a dingy clay below; antenna' dull 
testaceous, becoming somewhat ferruginous toward the tip; a pretty hroad and 
usually distinct blackish brown or piceous hand extends from behind the eye along 
the upper bordei of the deflected lobes of the pronotum as far as the posterior 
sulcus, and sometimes as a blurred and expanded continuation of it. across the pos- 
