18 IOWA STUDIES IN NATURAL HISTORY 
In addition to the differential characters already pointed out 
between this and the preceding species, may be mentioned the 
finer punctuation of the head and its more greenish, iridescent 
refiections which obtain in H. bijugis. 
This species is more generally distributed over the state than 
the preceding and in the western and northwestern parts is even 
very abundant at certain seasons. Most of our specimens have 
been taken from prairie and blue grass pastures along the edges 
of woods. At Waukon, specimens were taken in a field of tim- 
othy and clover. In the summer of 1916, of the one hundred 
and fifty-five specimens collected in the Okoboji region, twenty- - 
two were nymphs most of which were taken in June, although 
few half grown ones were taken as late as August 16. Adults 
increased in numbers as the season advanced until the maximum 
of abundance was attained in August. 
In addition to the localities above mentioned, specimens are at 
hand from Estherville, Granite, lowa City, Monticello, Rock 
Rapids, Sibley, Silver Lake and Storm Lake. 
Homaemus proteus Stal (PuatTse IV, Figure 3) 
1862. Homaemus proteus Stal, Stett. Ent. Zeit.. XXIII, 82. 
1880. Homaemus proteus Distant, B. C. A. Rhynch. Het., I, 20, Pl. 2, figs. 3 
and 4. 
1904. Homaemus proteus Uhler, Proc. U. S. Nat. Mus., XXVII, 349. 
1904. Homaemus proteus Van Duzee, Trans. Am. Ent. Soc., XXX, 15. 
1904. Homaemus proteus Schouteden, Gen. Ins., fase. 24, 60. 
Body ovate, wider behind middle, yellowish, rather densely and deeply 
punctured with fuscous or blackish. Head short, bronzed, broad and con- 
vex toward apex, the surface densely, finely punctured and with rather 
dense whitish pubescence; a pale line, sometimes indistinct, down middle 
of tylus which is also yellowish at tip; a broader pale line on each cheek 
separated from median vitta by the narrow, biack, impressed margins of 
tylus; lateral edges of head with a very faint pale line. Rostrum dull 
yellowish, the two apical segments fuscous. Antennae varying from dark 
yellow to fuscous; incisures and basal segment pale clay yellow. Pro- 
notum more convex than in H. aeneifrons or H. bijugis, particularly towards 
the lateral margins which are almost straight, the edges narrowly re- 
flexed; surface rather closely punctured with fuscous, the punctures 
forming two, sometimes three, more or less distinct oblique rows either 
side of the smooth median line; anterior one-third and antero-lateral mar- 
gins of pronotum with short, remote whitish pubescence; humeral angles 
not prominent; callosities surrounded by a row of fine black punctures 
and by whitish pubescence. Scutellum more convex and narrower at tip 
than in H. aeneifrons or H. bijugis, widest behind middle; punctured 
