NOTES ON ACARI 



SEVENTH SERIES l ) 



BY 



D*. a. c. oudemans 



With PI. I-IV 



1. Liponyssus nmsculi (C. L. Koch.) 



With Plate I fig. 1—2. 



Amongst numerous Liponyssus musculi (C. L. Koch) captured 

 by Mr. A. S. Poppb on a Vespertilio pipistrellus I found five 

 specimens of a nympha, which has the specific characters of that, 

 described and delineated by me in the Tijdschrift der Nederlandsche 

 Dierkundige Vereeniging, ser. 2, vol. 7, p. 293, PI. VIII, fig. 

 19 — 22, viz. as the nympha of the above named species. I therefore 

 consider my nympha described in the above mentioned volume 

 as the protonympha and the new one as the deutonympha. 



1) The First Series appeared 15, I, 1897 in the Tijdschrift voor Entomologie v. 39, 

 p. 175—187. 



The Second Series appeared 5, X, 1900 in the Tijdschrift voor Entomologie v. 43, 

 p. 99—128. 



The Third Series appeared 30, XI, 1901 in the Tijdschrift der JNed. Bierk. Vereen. 

 ser. 2, v. 7, p. 50—88. 



The Fourth Series appeared 18, VII, 1902 in the Tijdschrift der Nsd. Bierk. Vereen. 

 ser. 2, v. 7, p. 276—311, 



The Fifth and the Sixth Series will appear in the Tijdschrift voor Entomologie. 



The Series are independant one from another. 



