PLATE LXXX. 



P^'jG. 1. Millidium trisulcatum, AuhL 



2. Actidium coarctatum, Hal. 



3. Euryptilium saxonicum, Gillm. 



4. Nossidium pilosellum, MarsJi. 



5. Ptenidium pmictatum, Gyll. 



6. ,, evanescens, Marsh. 

 6a. „ „ labium. 

 6b, ,, ,, maxilla. 



7. „ Gressneri, Er. 



8. Orthoperus atomus, Gijll. 



9. ,, atomariuSj Heer. 



10. Corylophus cassidioicles, Marsh. 

 10a. ,, ,, maxilla. 



11. Sericoderus lateralis, Gy/I. 



12. Sacium pusillum, Gyll. 



13. Spbaerius acaroides, Waltl. 



A. Tiicbopteryx, Aving (after Mattbew.^). 



B. ,, larva „ 



C. ,, mandible ,, 



