PLATE 69. 



Brada irenaia Chamberlin. 



Figures 1-3. 



1. — Neuropodial seta from thirteenth somite. X 76. 



2. —  Portion from basal region of neuropodial seta of the more common form, sixteenth somite. X 337. 



3. — Similar portion from neuropodial seta with e.'cceptionally short annuli. X 337. 



Ilyphagus bythincola Chamberlin. 



Figures 4-9. 



4. — Notopodial seta of eleventh somite. X 76. 



5. — Portion of same toward tip. X 337. 



6. — Portion of same at base. X 337. 



7. — Neuropodial seta from eleventh somite. X 76. 



8. — Portion of same at base. X 337. 



9. — Portion of neuropodial seta near middle from tenth somite. X 337. 



