Some New Colorado Orthoptera 
BY LAWRENCE BRUNER. 
Nemobius brevicaudus new species. 
A medium sized, pale colored insect in which the female has an ex¬ 
ceedingly short ovipositor, not much more than one-half as long as that 
of other species in which this member is described as greatly abbreviated. 
In general appearance perhaps most closely resembling N. mormonius 
Scudcl. from Utah. 
Pale testaceous with a few darker markings on head, pronotum 
and abdomen above. The pronotum a little narrower in front thap be¬ 
hind, its surface sparsely adorned with rather stiff, not very long, dark 
colored bristles. Front and middle femora, as well as the front between 
the base of antennae, likewise adorned with similar bristles. Tegmina 
half as long as abdomen, about as long as head and pronotum combined 
(9), or nearly reaching its apex (tf) pale testaceous, without any defi¬ 
nite darker markings. Ovipositor very short, straight, the apical half 
moderately coarsely toothed above, the extreme apex rather blunt. Anal 
stylets pale, slender, a little longer than hind tibiae.. Antennae rather 
long and slender, testaceous basally, darker beyond. 
Length of body, 8 mm., 9> 8.5 mm.; of hind femora, < 3 % 5 mm., 
9, 5.5 mm., of ovipositor, 1.85 mm. 
Habitat. 1 1 9, Fort Collins, Colorado, October 4, 1901. 
Ceuthophilus aridus new species. 
Of a uniformly pale testaceous color,a trifle darker above than below, 
unadorned by darker mottlings, bands or blotches of any kind, a moder¬ 
ately slender insect with relatively smooth body and limbs. Eyes very 
dark brown or black, pyriform, the apex below. Front femora about 
one-fourth longer than pronotum, their front edge below provided with 
1-2 very small spines in addition to a much longer preapical one, the 
lower posterior edge ujiarmed; anterior lower edge of middle pair armed 
with 3-4 and the posterior with 2-3 minute ones, the apex of the latter 
edge provided with an apical spine. Hind femora rather robust, without 
any decided genicular enlargments, a trifle over three times as long as 
greatest width, the apical half provided above with a number of dark 
raised points, and both the outer and inner lower carinse furnished with 
numerous fine serrations, the sulcus rather narrow except near the 
apex. Hind tibiae about one-sixth longer than femora, nearly straight 
and provided with four pairs of moderately strong gently diverging spines 
