Scudder. ] 74 [November 6, 
ceived it from others; although belonging in the group with WM. fe- 
mur-rubrum (Burm.) it differs considerably from any other, the fe- 
male bearing a resemblance to M. collinus Scudd. 
80. Melanoplus flavidus. Moderately large in size. Head 
rather large, slightly elevated and well arched; eyes pretty large but 
not prominent ; vertex between the eyes nearly (<¢) or quite (2) half 
as broad again as the first antennal joint; foveola subobsolete (2), or 
shallow, broad, subequal, the sides moderately narrow but low (¢); 
frontal ridge broad, equal, above flat (¢) or tumid (2), at and below 
the ocellus broadly and rather deeply sulcate. Pronotum simple, the 
anterior lobe equal, the posterior expanding and punctato-rugulose ; 
median carina slight but distinct on the posterior lobe, obsolete or 
subobsolete in front of it; lateral carine subobsolete; transverse sulci 
of anterior lobe slight but distinct, continuous. Tegmina extending 
a very little way beyond the abdomen. Terminal ventral segment of 
g abdomen scoop-shaped, well rounded, the tip scarcely produced, 
entire; supraanal plate regularly shield-shaped, about as broad as 
long; the terminal apophyses of the preceding segment shaped much 
asin M. Bowditchi but thickened at the tip, as long as the cerci or 
nearly two-thirds as long as the supraanal plate; the anal cerci 
have a triangular base and a long, straight, slender, bluntly termi- 
nated, equal finger extending backward and upward, and inclined in- 
ward, starting from the lower posterior portion of the base; it is as 
long as the terminal joint of the hind tarsi; basal tooth of the lower 
valve of the ovipositor of the 2 small, triangular, sharp, broader 
than long, preceded by a smaller one. 
The general color is greenish yellow, sometimes a little infuscated 
above; the head is frequently mottled with fuscous; the antenne are 
uniform yellowish ; the usual stripe behind the eye over the sides of 
the pronotum is generally reduced to a very narrow dusky stripe 
next or on the lateral carine, diminishing in size posteriorly; or if it is 
broader, it invades the superior surface and not the deflected lobes; 
the upper surface of the prothorax has a median, dusky line and the 
summit of the head a dusky basal triangle. The tegmina partake of 
the general lively tone to a less extent, and the paler median stripe, 
distinct only at base, is seldom flecked intermittently with fuscous. 
Hind femora yellow, the upper half of the outer face dusky, and 
two oblique dusky patches often occur in the usual place above; hind 
tibie glaucous, the spines white or glaucous, black tipped. 
Leneth of body, 7, 26 mm., 2, 27 mm.; of antennz, ¢, 13 mm., 2, 
