SCUTELLEROIDEA OF IOWA 41 
Elongate, subquadrate, densely punctured except disk of pronotum. 
General color chestnut brown, the legs, rostrum and antennae yellowish 
to yellowish brown. Head longer than wide, irregularly ciliated along 
the border, coarsely, irreguiarly punctured, the tylus longer than the juga, 
gradzaily narrowing posteriorly and bearing at the tip four strong teeth; 
juga each bearing five teeth. Antennae slender, the second segment very 
small and paler than the others; third segment slender at base but en- 
larged apically and longer than any of the others; fourth and fifth slen- 
der, subequal and attached by very slender bases. Rostrum long, slender, 
reaching between cr posterior to hind coxae; basal segment slightly longer 
than head; second segment longer, heavier, compressed, finely hairy; 
third segment longest, slender, finely, sparsely haired; apical segment 
siender, about same length as second. Pronotum a little wider than long, 
the anterior angles strongly rounded, the sides convex, slightly sinuate 
in front of the posterior angle; margins recurved and with six or seven 
bristles; anterior margin not deeply sinuate; impressed submarginal line 
narrow and smooth; posterior margin slightly arcuated, high and convex, 
a little sinuated just interior to humeral angles; surface shiny; punctu- 
ation on disk of anterior lobe very sparse and fine; punctuation along 
anterior submargin and sides rather fine and very dense; a transverse in- 
dented line on the middle behind which the punctuation is close and coarse, 
the posterior submargin with the punctures finer and more remote, Scut- 
ellum short, triangular, convex, remotely, not strongly punctate, with a 
submarginal impressed line in which the punctures are arranged in a 
single row. Hemelytra a little paler than pronotum, highly polished, 
deeply and closely punctate except middle of posterior half of corium; 
apex markedly sinuate; external angle surpassing the abdomen; punctures 
of clavus arranged in three rows; membrane white, extending much behind 
abdomen. Venter polished, very finely punctate and clothed with yel- 
lowish pubescence. Ostiolar canal very long, high and narrow with the 
anterior border slightly convex; situated on the dark brown rugose epi- 
sternum. Metepimera produced backwards over base of abdomen in the 
form of flaps. Meso- and metasternum strongly grooved longitudinally. 
Legs pale reddish brown; anterior femora of female with an oblique, 
bifid tooth beneath; middle femora unarmed; posterior femora with a 
heavy, blunt spine beneath near the tip; femora of male unarmed; both 
sexes with anterior tibiae greatly expanded and flattened at the tip; 
outer edge with nine or ten spines, the tip with four, the internal face with 
five or six; middle and posterior tibiae with stiff spines on the exterior 
edge; posterior tibiae long, slender, slightly curved. Length, 4.0 mm. 
Width across pronotum, 2.0 mm. 
This is the largest and darkest colored of our three species of 
Amnestus, though it is subject to a little variation in both size 
and color. The femora of the female are more fully armed than 
those of the male, both anterior and posterior pairs in the female 
