MICHIGAN ACADEMY OP SCIENCE. 
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truncate anteriorly, acute posteriorly. Median carina strongly keeled, 
with line indentations, sometimes puncturing it near the edge; puncta- 
tions usually arranged in one or two rows. Pronotum does not reach 
to knees. Wings abbreviate. 
Color: — Vertex dark reddish brown, marked with black. Face black or 
fuscous. Dorsal part of pronotum yellowish brown, lateral part darker. 
Legs yellowish brown, with bands of darker red-brown on both femora 
and tibiae. 
Measurements: — Length of body, G.5 mm.; pronotum, 5.5 mm.; hind 
femora, 4 mm. 
There is also a form with pronotum and wings extending beyond the 
hind femora, but it was not found at Douglas Lake. 
G. Nomotettix cristatus Morse. — Vertex not over one and one-half 
times the width of one eye, sides parallel, front margin rounded, with 
median carina projecting. Profile rounded. Pronotum advanced to 
front third of eye; anterior margin right-angled; anterior carinae paral- 
lel ; median carina low, slightly arched in front of shoulders. Anterior 
lateral lobe acute, posterior very small, rounded; anterior lateral sinus 
deep, acute, posterior sinus shallow. Pronotum reaches to knees. 
Color : — Fuscous, with a black spot on each shoulder, and blackish 
rings on legs. 
Measurements: — Length of body, 7.25 mm.; pronotum, G.75 mm.; hind 
femora, 4.5 mm. 
7. Nomotettix arcuatus Hancock. — This species has the stoutest 
body of all the Tettigidae found. Vertex narrow; front margin trun- 
cate; median carina projecting like a tooth, fossa on each side; eyes not 
projecting as much as in other species. Profile with one shallow in- 
dentation below lower border of eyes. Pronotum acute or right-angled 
anteriorly, extending nearly to front margin of eye; between the an- 
terior carinae the pronotum is twice the width of the vertex; median 
carina strongly arched; does not extend to tip of abdomen; lateral sinus 
very shallow. Wings sometimes longer than pronotum, sometimes abbre- 
viate. 
Color: — Dark reddish brown. There were no markings on my speci- 
men. 
Measurements : — Length of body, 7.5 mm. ; pronotum, 5.5 mm. ; hind 
femora, 4 mm. 
Genus Tcttigidea Scudder. 
The members of this genus have stouter, more clumsy bodies, and 
larger heads, with less oblique faces than others of the Tettigidae. The 
dorsal surface of the pronotum is usually finely granulate or rugose; 
its sides slope downward between the shoulders. The males are more 
slender than the females, and there is much variation in the length of 
the wings. 
8. Tcttigidea parvipennis pcnnata (Harris). — Vertex wider than one 
of the eyes, truncate anteriorly, with median carina projecting. Profile 
nearly vertical, gently rounded. Pronotum obtuse on anterior margin ; 
lateral and anterior carinae united; surface rugose. Median carina 
compressed, arched at shoulders and at anus; lateral lobe nearly right- 
angled; lateral sinus deep. 
