(dr. a. c ottdemans). list ov dutch acari. 135 



53. Laelaps sp. — On Vespertilio dasycneme , Sneek , July. 



54. Laelaps sp. — On a sunny dike, Utrecht, July. 



55. Laelaps crassipes Schrank, — On Arvicola arvalis Sneek , 

 Mrch. , June. — On Mustela vulgaris , The Hague , Oct. — 

 On Putorius erminea , Sneek , June. — On Paludicola ampJtihius , 

 Sneek, Apr. , July. 



56. Laelaps lemni Grube. — On Arvicola arvalis, Utrecht. — 

 On Talpa europaea . Wassenaar , July. — On Mustela vulgaris , 

 The Hague, Sept. — On Putorius putorius , The Hague. 



57. Laelaps pectinifer Berl. — On a dead Lumbricws terrestris , 

 Utrecht, Sept., (Mr. J. A. Van den Brink). 



Z e r c n Koch. 



58. Zercon sp. — In humus , Utrecht , May. — On Mustela 

 vulgaris. The Hague, Oct. — On Putorius putorius , The 

 Hague. — 



59. Zercon sp. — In humus , Utrecht , May. 



60. .Zercon pavidus Koch. — In damp moss, Langweer, June. 



(G e 1 a e n Grube 1859 , T r a c h y n o t u s Kram 1876). 



61. (^Celaeno) sp. — In decaying leaves, Ruurloo, Aug. ,Warns- 

 veld , Apr. , De Steeg , Aug. — In damp moss , Warnsveld , Aug. 



62. {Celaeno) aegrota Koch — In decaying leaves, Warnsveld, 

 Apr. — In damp moss , Warnsveld , Aug. 



Epic ri us Can. Fanz. 1877. 



63. Epicrius sp. — In decaying leaves , Ruurloo , Aug. , Lochem , 

 Aug., Beiden, Apr. 



Gryptognathus Kram. 1879. 



64. Gryptognathus lagena Kram.? — In damp moss, Sneek, Apr. 



II. Dermanyssida Koleu. 1859. 



S mari dia. Dum. 1823. 



65. Smaridia sp. — Patria, (Dr. A. W. M. Van Hasselt). 



66. Smaridia sp. — On Vespertilio dacycneme, Sneek, July. 



