142 Annals Entomological Society of America [Vol. IX, 



inal segments with fine punctures more numerous at the dorsal 

 cephalic portion of segment; antennas of male tapering gradually 

 until near distal end, then the mesal margin concave to tip, 

 length two and one-half times the width, ending near the middle 

 of exposed portion of tarsus of the second pair of legs; labrum 

 variable, usually broadest on the distal portion, with more 

 than twice the length, five-sided and pointed at the distal end; 

 maxillae with each half quadrilateral, the median length much 

 less than the greatest width; first wing with its dorsal margin 

 rounded from point of attachment, so that the anal angle is 

 almost impossible to determine; second wing visible around 

 entire dorsal margin of first wing, its margin entire, not pro- 

 duced to form an anal angle and extending about half way 

 across caudal margin of first wing. Length, abdomen retracted, 

 30-37 mm., expanded, 37-45 mm., girth 38-50 mm. 



Genus Agapema Neumoegen & Dyar. 



Body tapering at cephalic end, abdominal segments 8 to 10 

 never forming a cone; antennas pectinate throughout, tapering 

 to a point at the distal end; invaginations for the anterior arms 

 of the tentorium distinct; eye-pieces both visible; labrum 

 elevated above the surrounding surface, clypeo-labral suture 

 obsolete; maxillas measured on meson about one-seventh the 

 length of wings; median thoracic line distinct on prothorax 

 and mesothorax, sometimes on the metathorax; strongly 

 •carinate on prothorax; caudal portion of mesonotum and meta- 

 notum slightly depressed at base of wings; wings with their 

 distal margin slightly raised above the dorsal surface of body; 

 lateral aspect of the cephalic margins of abdominal segments 

 5 to 7 with sharp, slightly wavy, transverse ridges with distinct 

 furrows between, the cephalic margin narrowed on the dorsum 

 and the furrows indistinct, furrows extending ventrad to the 

 region of the proleg scars; cremaster absent; abdominal seg- 

 ments with distinct depressions between the segments, excepting 

 on the dorsum; the tenth segment, as viewed from above, a 

 transverse plate, concave on the caudal margin and the lateral 

 angles produced into lobes, as viewed from ventral aspect, 

 the ventral surface strongly concave and five short, curved 

 spines inserted close together in the lateral margin of each 

 lobe. 



