MICHIGAN ACADEMY OF SCIENCE. 
159 
Genus Scirtettica Saussure. 
“Scutellum of the vertex longer than broad, the bounding walls mod- 
erate, median carina absent or lightly developed; frontal costa silicate, 
broadening and shallow below. Pronotum constricted anteriorly, the 
median carina distinct but low, distinctly cut by the principal trans- 
verse sulcus and often with a second more or less indistinct incision. 
Elytra slender, except in occidentalis, the intercalary vein nearer the 
median than the ulnar vein, apical lv nearly or quite touching the 
former; wings with a distinct black band immediately beyond the 
middle, subobsolete in occidentalis, the base yellowish or orange. Hind 
femora moderately heavy, marked on both faces and above with black 
bars; hind tibiae reddish or yellowish.” — Mr. A N. Caudell. 
18. Scirtettica marmoratus Harr. — 'Vertex deeply snlcate, no me- 
dian carina; foveolae small, deep, equilateral triangles; frontal costa 
about the width of the basal joint of antenna, deeply snlcate. Anterior 
border of pronotum obtuse or sub-truncate, posterior border right- 
angled ; median carina higher on prozona than on metazona, deeply cut 
by principal sulcus, very slightly notched by secondary sulcus ; lateral 
carinae distinct on metazona only. Tegmina one and one-half times 
length of abdomen. Hind femora reach tip of abdomen. 
Color: — Head, dark reddish brown to fuscous; disk of pronotum has 
x-shaped mark of gray or brown on a fuscous ground, sides gray or 
brown with fuscous blotches. Tegmina gray, irregularly spotted with 
black, — black at tips. Wings pale yellow at base, middle third crossed 
by a broad fuscous band which begins at the anal angle; beyond this is 
a transparent band in which the veins are fuscous; tip fuscous; hind 
femora gray with three fuscous bands; inner surface yellowish, three 
black bands; tibiae successively fuscous, white, fuscous, red, black. 
Spines with black tips. 
Measurements: — Length of body, 18 mm.; tegmina, 19 mm.; hind fe- 
mora, 10 mm. 
Genus Spharagemon Sciulder. 
“Body slender, more or less compressed. • Head rather swollen above, 
* * * the foveolae wide and distinct. Frontal costa narrow, sulcate, 
at least below the ocellus. Antennae in both sexes about as long as 
hind femora; filiform, the joints of the basal third a little flattened. 
Pronotum with the disk of metazona flat, that of prozona with the sides 
sloping; the median carina high and strongly compressed, cut a little in 
front of the middle by a deep but narrow notch. Inner wings yellow 
with dark curved median band. Hind femora rather short and stout, 
equalling, or a little exceeding, the tip of the abdomen. Hind tibiae, 
in our species, with at least the apical half red. Valves of ovipositor 
short; but little exserted. 
“This genus is clearly related to Dissosteira , and Saussure, in his 
Podromus, has placed it as a sub-genus under that one. Eight species 
are known from the United States.” — Blatchley. But one species was 
found at Douglas Lake. 
19. Spharagemon lolli Sciulder. — Disk of vertex broad posteriorly, 
narrow anteriorly, carinate; frontal costa convex above ocellus, sulcate 
below; foveolae distinct, triangular. Pronotum but slightly enlarged 
