62 ILLINOIS BIOLOGICAL MONOGRAPHS [380 



fronto-clypeal suture sometimes black; in young specimens, head grayish 

 and body entirely whitish-green; in life head and body coated with a waxy 

 bloom; annulation, (3, 5, 1), (2, 4), 6, 7; antennae, 5, 2, (1, 3, 4); maxillary 

 palpi, (4, 2), 3, 1; labial palpi with distal segment twice as long as the pre- 

 ceding segment, but subequal in length to or shorter than distal segment 

 of maxillary palpi; labrum usually with three setae on each side and 

 without median longitudinal depression; mandible with one seta; legs 

 with trochanter one-half as long as tibia, femur slightly longer than 

 tibia; glandubae half as long as adjacent setae; length, 18 mm.; width of 

 head, 1.8 mm.; on Thalictrum polygamum; Y-8,-92-1-1. 



Neopus 14-punctatus Norton. — Head pale creamy-white with brown 

 spots on dorso-meson of vertex, caudad of ocellarae, and on front, frontal 

 spots much darker; body whitish green, dorsum with a grayish shade, bor- 

 dered along supraspiracular lines with narrow grayish bands, dorso-meson, 

 especially on thorax, with fine double bands; venter including legs and 

 larvapods whitish; annulation, (1, 5, 3), (2, 4, 6, 7); antennae, (5, 1), 2, 

 (3, 1); maxillary palpi, 4, 2, (3, 1); labial palpi with distal segment one- 

 fourth longer than preceding segment, but subequal to distal segment of 

 maxillary palpi; labrum with three setae on each side, median longitudinal 

 depression wanting; mandible with single seta; legs with trochanter nearly 

 one-half as long as femur, tibia equal in length to femur; glandubae more 

 than half the length of adjacent setae; length of body, 18 mm.; width of 

 head, 1.8 mm.; on Podophyllum peltatum: Y-205-1-1. 



Tenthredo bilineata MacGillivray. — Head whitish green with vertex 

 brown dorsad of genae except narrow line along epicranial stem, vertical 

 furrows, and caudad and dorsad of ocularia; body on dorsum with series of 

 triangular brownish markings; triangle with apex directed cephalad and 

 with minute deep brown spot at each basal angle, the triangle divided on 

 meson by a faint light line; supraspiracular line with light brownish in- 

 definite band; venter including legs and larvapods whitish; annulation, 

 (3, 1, 5), (7, 6, 2, 4); antennae, 5, (1, 2, 3, 4); maxillary palpi, (4, 2), 1, 3; 

 labial palpi with distal segment nearly twice as long as the preceding seg- 

 ment and shorter than distal segment of maxillary palpi; labrum with five 

 setae on each side and with median longitudinal depression; mandibles with 

 four setae; legs with trochanter nearly as long as femur, tibia longer than 

 femur; glandubae conical, large, subequal in length to adjacent setae; 

 length of body, 21 mm.; width of head, 2 mm.; on Geranium maculatum: 

 Y-175-2. 



Macrophya Dahlbom 



Body usually whitish green, on dorsum with or without grayish band, 

 latus sometimes with small black spots; head usually marked on vertex; 

 antennae with segment 1 or 2 longest or all segments subequal in length; 



