EXPLANATION OF PLATES. 
PLATE LIV. 
Fig. 1. Myrmeleon diversum , pronotum. 
Fig. 2. Myrmeleon diversum , niesonotum. 
Fig. 3. Myrmeleon diveisum , metanotum. 
Fig. 4. Myrmeleon diversion, prosternum. 
Fig. 5. Myrmeleon diversum, mesosteruum. 
Fig. 6. Myrmeleon diversion, motasternum. 
Fig. 7. Myrmeleon diversum, propleimnu. 
Fig. 8. Myrmeleon diversion, inesopleimnn. 
Fig. 9. Myrmeleon diversum , metapleimim. 
All magnified. William W. 
Fig. 10. Raphidia oblita, pronotum. 
Fig. 11. Raphidia oblita, mesonotum. 
Fig. 12. Raphidia oblita, metauotiim. 
Fig. 13. Raphidia oblita, propleurum. 
Fig. 14. Raphidia oblita, mesopleurum. 
Fig. 15. Raphidia oblita, metapleurum. 
Fig. 16. Raphidia oblita, prosternum. 
Fig. 17. Raphidia oblita, mesosternum. 
Fig. 18. Raphidia oblita, metasternnm. 
del., under author’s direction. 
Fig. 1 . Mantispa brunnea, pronotum. 
Fig. 2. Mantispa brunnea, mesonotum. 
Fig. 3. Mantispa brunnea, metanotum. 
Fig. 4. Mantispa brunnea, prosternum. 
Fig. 5. Mantispa brunnea , mesosternum. 
All enlarged. 
PLATE LV. 
I Fig. 6. Mantispa brunnea, motasternuin. 
Fig. 7. Mantispa brunnea, propleurum. 
Fig. 8. Mantispa brunnea, mesopleurum. 
Fig. 9. Mantispa brunnea, metapleurum. 
William W. Griftin del. 
plat: 
Fig. 1. Ascalaphus longicornis?, pronotnm. 
Fig. 2. A scalaphus longicornis?, mesonotum. 
Fig. 3. A scalaphus longicornis?, metanotum. 
Fig. 4. Ascalaphus longicornis ? , mesopleurum. 
Fig. 5. Ascalaphus longicornis?, metapleurum. 
Fig. 6. A scalaphus longicornis?, mesosternum. 
Fig. 7. Ascalaphus longicornis?, metasternum. 
Fig. 8. Polystoechotes nebulosus, pronotum. 
Fig. 9. Polystoechotes nebulosus, mesonotum : w>, 
1st wings. 
All enlarged. William W. Grit) 
LVI. 
Fig. 10. Polystoechotes nebulosus, metanotum : w* 
2d wings. 
Fig. 11. Polystoechotes nebulosus, mesosternum. 
Fig. 12. Polystoechotes nebulosus, metasternum. 
Fig. 13. Polystoechotes nebulosus, pronotum, seen 
laterally. 
Fig. 14. Polystoechotes nebulosus, mesopleurum. 
Fig. 15. Polystoechotes nebulosus, inetaplearum. 
in del., under author's direction. 
PLATE LVII. 
Fig. 1 . Pteronarcys calif omica, pronotum. 
Fig. 2. Pteronarcys calif ornica, mesonotum. 
Fig. 3. Pteronarcys californica, metanotum. 
Fig. 4. Corydalus cornutus, end of abdomen of 
male, under side. 
Fig. 5. Corydalus cornutus, ond of abdomen of 
male, side view: c, cercopoda; rh, 
rhabdite. 
All enlarged. 
Fig. 6. Ascalaphus longicornis ?, abdomen. 
Fig. 7. A scalaphus longicornis?, abdomen. 
Fig. 8. Myrmeleon diversum, abdomon of male, 
dorsal view. 
Fig. 9. Myrmeleon diversum, abdomen of male, 
lateral view. 
Fig. 10. Myrmeleon diversum, abdomen of male, 
ventral view. 
Iliam Griflin del. 
PLATE LVIII. 
Fig. 1 . Corydalus cornutus, abdomen, dorsal view : 
c, cercopoda. 
Fig. 2. Polystoechotes nebulosus, abdomen, dorsal 
view : c, cercopoda. 
Fig. 3. Polystoechotes nebulosus , abdomen, ventral 
view : c, cercopoda. 
All enlarged. 
Fig. 4. Polystoechotes nebulosus , abdomen, lateral 
view: c, cercopoda. 
Fig. 5. Raphidia oblita, abdomen, dorsal view. 
Fig. 6. Raphidia oblita, abdomen, lateral view. 
Fig. 7. Raphidia oblita, abdomen, ventral view. 
William W. Griftin del., under author’s direction. 
Fig. 1 . Limnephilus jmdicus, bead, seen from 
above: p, labial palpus. 
Fig. 2. Limnephilus pudicus, bead, seen from be- 
neath. 
Fig. 3. Limnephilus pudicus, hoad, seen from the 
side. 
Fig. 4. Limnephilus pudicus : mx, 1st maxilla, lac, 
laciuia? 
Fig. 5. Limnephilus pudicus, labrum. 
PLATE LIX. 
Fig. 6. 
Fig. 7 
Fig. 8. 
Fig. 9. 
Fig. 10. 
Panorpa debilis?, mouth-parts, showing 
labrum beneath. 
Panorpa debilis /, 2d maxilla (labium): 
palpg, palpiger; p, labial palpus. 
Panorpa debilis ?, labrum. 
Panorpa debilis ?, mandible. 
Panorpa debilis?, maxilla* and one pal- 
pus. 
All maguifled. Gissler del., uuder author’s direction. 
(6) 
