479 



5- Claval and corial membranous appendages in Poly- 



chaetophycs serpuUdia. 

 6. Gclasfoccplialiis oniifhoidcs, head and nota. 

 7- The same in profile. 



8. Ncsostcles hcbc, liead and pronotum. 



9. N. sangiwicsccns, the same. 



10. Pcttya aiicuwliia, the same. 



11. SIphanta galcafa, the same. 



12. DryadoiitorpJij pallida, the same. 



13. The same in profile. 



14. The same in profile, dorsally tilted. 



('In 12-17. t'=sensory pit, &=ocellus). 



