160 THE CANADIAN ENTOMOLOGIST. 



white becomes dull and sordid. Twelve hours after suspension, pupation 

 takes place. 



Chrysalis- — Length to top of head .95 inch, to end of processes on 

 head i.i inch; slender, compressed laterally, the thoracic segments on 

 ventral side highly arched and rounded abruptly down to abdomen ; the 

 sides of this elevation covered entirely by the wing cases, sloping, almost 

 flat or a little convex, the two wing cases not quite meeting, but separated 

 by a narrow depressed ridge, on either side of which is a row of small 

 bead-like tubercles, each giving out at top a short sharp bristle or thorn ; 

 this ridge widens anteriorly so as to include the antennae cases, and the 

 rows of beads pass along and around head case to its top on the dorsal 

 side, but for a little distance at the base of the antennae lose their bristles ; 

 head case prominent, compressed transversely, nearly square at top ; upon 

 each vertex a narrow^ leaf-like process, lanceolate, flattened and thin, ser- 

 rated on both edges, divergent, like horns ; mesonotum prominent, com- 

 pressed at top into a thin carina which rises on the anterior part in a 

 double curve to a sharp point, but on the posterior side slopes at about 

 45° ; followed by a rounded excavation considerably longer than the 

 mesonotum itself; abdomen cylindrical; on the two upper segments a 

 large sub-dorsal, flaring, flattened process rounded irregularly on the edge 

 and completely spanning both segments ; on the next segment is a small 

 sharp rounded process, and on the next another small and flattened ; on 

 the next a sharp tubercle, in some cases flattened ; on the tops of all these 

 processes are thorns, one on each of the smaller, and two on the largest ; 

 in row with the^e, on the depression and on the sides of mesonotum are 

 four low conical tubercles, each with a short thorn ; segments 9, 10, 11, in 

 the ventral line, have the anterior edges turned up and produced into low 

 divergent points ; at the base of the head case on dorsal side a large 

 burnished gold spot, and the tubercles behind the mesonotum are similar 

 to this in color ; general hue brown, in shades; the anterior parts, which 

 includes head case, mesonotum and half the wing cases, being light or 

 yellowish; the rest of wing cases dark, or streaked dark in the interspaces 

 of the wings ; the light part of these cases somewhat gray or whitish ; the 

 processes on head and the antennae cases are dark ; abdomen varied in 

 longitudinal streaks, confined to each segment, dark and light brown, with 

 some oblique whitish marks on the ventral side. Duration of this stage 

 6 to 7 days. 



This species is common in Southern Florida, and has been taken at 



