PUPAE OF SOME MAINE SPECIES OF NOTODONTOIDEA 77 



end, where they equal the width of the prothoracic legs; taper- 

 ing gradually to a pointed tip; maxillae about one-third the 

 length of the wings, the proximo-lateral angles never extending 

 to the eye-pieces ; labial palpi entirely concealed ; prothoracic 

 legs almost three-fifths the length of. the wings, meeting on the 

 meson caudad of the maxillae, for about two-fifths of their 

 length ; mesothoracic legs a little shorter than the antennae, 

 meeting on the meson for about the same distance as the prothor- 

 acic legs ; tips of metathoracic legs exposed between the meta- 

 thoracic wings ; metathoracic wings meeting on the meson cau- 

 dad of the mesothoracic legs and extending along the mesal 

 margin of the mesothoracic wings to their caudal margin, be- 

 low which they are visible for the greater part of their length; 

 mesal length of prothorax two-fifths that of the mesothorax; 

 mesothoracic spiracles slit-like; metathorax short, its mesal 

 length only one-third that of the prothorax; abdominal seg- 

 ments 1 to 8 punctate, the punctures thickest along the cephalic 

 margin of the movable segments ; abdominal spiracles lenticular 

 in outline, the openings elliptical; cremaster triangular, the dis- 

 tal end widened out and somewhat spherical. 



This genus includes but one eastern species Drepana arcuata 

 which is found throughout the Atlantic States. 



DREPANA ARCUATA Walker. 

 Fig. 6, E. 



Color on head, thorax, and appendages dark brown except 

 the tips of the cephalic projections which are reddish brown, 

 the abdomen dull green mottled with dark brown, the coloring 

 darkest on the dorsum ; head, thorax and appendages consider- 

 ably roughened with indeterminate transverse impressed lines ; 

 cephalic projections triangular, their tips slightly curved dorsad, 

 situated on the front adjacent to the proximal ends of the an- 

 tennae ; glazed eye-pieces, clypeus and front smooth and polished ; 

 thoracic segments with a slightly carinate median line; abdo- 

 men with the first eight segments punctate, the remainder 

 smooth ; dorsal furrow between the ninth and tenth segments not. 

 distinct forming an indistinct V-shaped depression at the base of 

 the cremaster; cremaster slightly rugose, the basal part triangu- 



