(dr. a. c. oudemans). new list of dutch acari, ti. 7 



on plums. — Sneek , Utrecht, Arnhem, Bloemendaal , Bergen- 

 op-Zoom. — 1,5—8. 



10. Seinlus nmricatus (C. L. Koch). — In tuber of Solanum 

 tuberosnm. -~ Arnhem, Nijkerk. — K. J. W. Kempers. 



11. Emeus ostrmus (C. L. Koch). — In decaying leaves; in a 

 decaying hyacintli-bulb. — Lochern , Utrecht. — 5, 8. — 



12. Emeus hallerl (G. et R. Can.) — In humus; in decaying 

 leaves; on Geotrupes stercorarius , NccropJwrus germanicus , Staphy- 

 limis maxillosus , Musca domestica. — Brummen , Arnhem , Nijkerk , 

 Utrecht , Haarlem , Haag. — 4 — 8. — K. J. W. Kempers , Dr. Everts. 



13. Laelaps agilis C. L. Kocii. — On Arvicula arvatis, Palu- 

 dicola amp/iibivs, Mîistela vulgaris, Puiorins erminea. — Sneek, 

 Arnhem, Haag. — 3- -7, 10. 



14. TJypoaspìs placentula Beri. — Nijkerk. — K. J. W. Kempers. 



15. ITt/poaspis myrmecopJàhis Beri. — In nest of Formica san- 

 guinea Latr. and Formica rufa F. — Exaeten. — E. Wasmann. 



16. Hgpoaspis arcuai is C L. Koch. — On Talpa europaea, 

 Arvicola arval\s , Mustela vulgaris, Putorius ptutorius, Mus sylva- 

 ticus, in decaying leaves. — Lochem, Utrecht, Amsterdam, Haar- 

 lem, Wassenaar, Haag. — J. Jaspers Jr. — 7 — 9. — 



17. Hypoasjns ovalis Mon. — In nesls of Formica sanguinea LaU'. 

 — Exaeten. — E. "Wasmann. 



18. Hypoaspis cutieifer Michael. — In nests oì Formica sanguinea 

 and of Lasius fuliginosus Latr. — Exaeten. — E. Wasmann. 



19. Hypoaspis pavidus (C. L. Koch.) — In moss; in decaying 

 leaves. — Langweer^ Haarlem, Overveen. — 6—8. — 



20. Hypoaspis aculeifer G. Can. — On a decaying hyacinth-bulb ; 

 on a sunny dike. — Utrecht. — 5, 7. — 



21. Hypoaspis cossi (Ant. Dug.). — On a caterpillar of Try- 

 panus cossus', on ditto oi Saesia formÀcaeformis ; on Lacerta agilis. — 

 A. A. van Pelt Lechner; Dr. J. Th. Oudemans. — 5, 11, — 



22. Hypoaspis hypudaei Oudms., nov. sp. — On Paludicola am- 

 phibius. — Sneek. — 4. 



23. Hypoaspis oophilus Wasmann. — In nest of Formica san- 

 guinea Latr. — Exaeten. — E. Wasmann. 



