1914] Pupe of Ceratocampide and Hemileucide 299 
Automeris io Fabricius. Color dark brown; body setae 
conspicuous, light brown, sparsely distributed over entire 
surface excepting appendages, most numerous on thorax; 
body often noticeably depressed; face parts, appendages, 
except the wings, and exposed surface of thorax with fine, 
indeterminate, transverse striations, remainder of surface 
shagreened, with the projections in transverse rows; antennae 
in both sexes with length three times the width and quite 
reaching the tips of the first pair of legs; labrum variable, 
broader than long, usually five-sided and pointed at the distal 
end; maxillae, measured on meson, about one-sixth the length 
of wings, median length always less than the greatest width, 
each half the maxilla quadrilateral, sometimes modified so that 
entire maxilla appears heart-shaped; median thoracic line 
narrow, usually visible on all segments; abdominal segments 
5 to 7 with the cephalic margins covered with sharp transverse 
ridges, with distinct furrows between, the furrows becoming 
shallower at the meson on the ventral surface, the flange-like 
plate with its edges entire; abdominal segments 4 to 7 with a 
distinct furrow of varying width between the segment and the 
transverse conjunctiva, which becomes indistinct in the region 
of the proleg scars on the ventral surface, its cephalic margin 
being indicated by a raised line; abdominal segments 8 to 10 
with segmentation distinct; dorsal surface of tenth abdominal 
segment with deep, longitudinal ridges at base of cremaster; 
tip of cremaster with a small group of closely set, sharply 
recurved spines, the hooks turning outward in all directions. 
Length, abdomen retracted, 7-8’—114", expanded, 1”—1 3-8’; 
girth 134”—2”. 
Automeris leucana Hubner. Color dark brown; body 
setae light brown, inconspicuous; face parts and appendages. 
with indeterminate, transverse striations, exposed surface 
of thorax rugose, with interrupted transverse ridges; remainder 
of surface coarsely shagreened; antennae in both sexes with 
the length more than four times the breadth, not extending 
as far caudad as the tips of first pair of legs; labrum variable, 
length and breadth approximately equal, pointed at tip, usually 
five-sided; maxillae, measured on meson, about one-seventh 
the length of wings, the greatest width about one and one-half 
times the median length, each half the maxilla quadrilateral; 
