MORSE: ORTHOPTERA OF NEW ENGLAND. 
491 
broadly ovate-lanceolate, bluntly pointed. Apex of subgenital 
plate deeply V- or U-shaped emarginate. Furcula indicated by 
two slight widenings of posterior margin of last dorsal segment. 
Color: unstriped phase. — Rusty brown above, either nearly 
uniform or with the tegmina 
thickly marked with slightly 
darker spots; beneath brownish 
yellow. The ground color 
above varies from reddish to 
yellowish in tint and sometimes 
in late autumn to an olive gray 
with rusty tegmina. Rarely, 
a yellowish mid-dorsal stripe is 
present. The spines of the 
hind tibiae are yellow with 
black tips and often contrast 
strongly with the tibiae. 
Striped phase: generally rusty 
yellow above, paler beneath, 
the tegmina of the female often 
with darker spots. A conspic- 
uous pale yellow mid-dorsal 
stripe extends from vertex of 
head to end of tegmina. Fre- 
quently the color of fresh spec- 
imens, females particularly, is 
a deep olive green on the sides 
of the body and face of the hind femora, largely supplanting the 
rusty tint over the entire body. 
Fig. 86. — Striped Rusty Locust, Schistocerca 
alutacea alutacea. Female. Wings of left side 
spread. (After Lugger.) 
Measurements. 
Total 
Body Tegmina 
Hind femora 
Antenna 
Male 
. . . . 33-39 
28-33 24-30 
16 -19.5 
13-17 
Female 
. . . . 44-54 
39-54 32-^2 
20.5-27 
14-17.5 mm 
The two forms — which may be distinguished as the striped 
and the unstriped — of this species as found in New England, 
usually present certain differences in structure, color, and habitat 
that lead some entomologists to regard them as specifically dis- 
tinct, but the consensus of opinion at the present time is that 
