286 Annals Entomological Society of America _[Vol. VII, 
Genus Antsota Htibner. 
Body with the cephalic margins of abdominal segments. 
5 to 7 produced into flange-like ridges directed cephalad, and 
set with spines; exposed surface of head and thorax spinose, 
the abdominal segments both spinose and punctate; both 
eye-pieces present, the sculptured portion spinose; invagina- 
tions for the anterior arms of the tentorium small, but distinct; 
clypeo-labral suture present; labrum variable, small, never 
twice as broad as long; maxillae, measured on the meson, 
always one-fourth the length of the wings, triangular in outline;. 
tarsi of the first pair of legs adjacent on the meson, tips of the 
tarsi of the second pair meeting obliquely on the meson; meta- 
thorax with a prominent oblong tubercule on each side the 
meson, extending more than one-third the distance between 
the meson and the margin of the first pair of wings; cremaster 
always long and bifurcate at tip. 
This genus includes at least five species commonly found 
in the United States, one of these, A. skinnerz, is reported from 
Arizona, the other four from the states east of the Mississippi. 
These five species can be separated by means of the fol- 
lowing table: 
A. Cremaster one-eighth or more of the total length of the body; spines 
on the epicranial area at the proximal end of each antenna large and 
prominent, extending beyond the margin of the body in ventral view 
and giving the pupa a horned appearance. 
B. Cremaster more than one-eighth the total length of body and 
bifurcate for less than one-fourth its length; small species, 
lesssthanwone inch inysleneihe ein. ene virginiensis. 
BB. Cremaster about one-eighth the total length of the body and 
bifurcate for one-fourth its length; species one inch or more in 
length. 
C. Face parts prominently elevated above the level of the 
appendages; mesothorax with at least one laciniate 
spine on each side the meson near the cephalic margin. 
stigma 
CC. Face parts not elevated above the level of the appendages; 
never with a laciniate spine on each side the meson near 
the icephiahte mare: 2h. tu yaeees cos Miele ya aes ot oe: senatoria. 
AA. Cremaster less than one-eighth the total length of the pupa; spines 
of the epicranial area at the proximal end of each antenna never 
extending beyond the margin of the body in ventral view, so that 
the pupa does not present a horned appearance. 
Each metathoracic tubercule very prominently elevated, its 
length more than half the length of the segment and extending 
at least half the distance from the meson to the margin of the 
firstspainiob wines colon blacks. yee ee ee skinneri 
BB. Each metathoracic tubercule somewhat diamond shaped, never 
very prominently elevated, its length never as much as half the 
length of the segment, and never extending half the distance 
between the meson and the margin of the first pair of wings; 
color*bright reddish browne sete oe eee consularis. 
