Deutsch. Ent. Zeitschr. 1910. 



39 



Notes on Äcari. 



XIX*^ Series^). (Äcaridae.) 



By Dr. A. C. Oudemans, Arnhem. 



(With 17 figures.) 



1 . Pterolichus pav onis Oudms. (Fig. 1 — 6.) 

 1905. Pterolichus pavonis nov. sp. Oudms. in Entom. Bericht., nr. 21, 



This species is closely 

 allied to Pt. obtusus Rob. and 

 Pt. bisubulatus Rob. 



Larva (Fig. 1 — 3). Length 

 21ß ju. — Colour pale; even 

 the dorsal shield is pale , only 

 the capitulum and the legs may 

 be called slightly darker. — 

 S h a p e. The larva remembers 

 US of Dermoglyphus elongatus Megn. 

 and D. arami Oudms., except as 

 to the form of the dorsal shield 

 and the length of the legs, which 

 strenghthens my supposition of 

 the close relation of Pterolichus 

 and Dermoglyphus (See Notes on 

 Acari , XV*^ Series , Tijdschr. 

 V. Entom. , v. 51 , p. 51). 

 It is elongate , two and a half 

 times longer than wide , only 

 provided with an anterior dorsal 

 shield , which bears two long 

 prosomatic hairs , two minute 

 ones and two vertical hairs ; all 

 the other dorsal hairs are minute ; 

 abdomen rounded posteriorly. p-g. ^ 3 



T e X t u r e. The shield, Pterolichus pavonis Oudms. 



p.210. 



Larva. 



1) Series XI in Tijdschr. v. Entom., v. 46, p. 93—134. — 13, I, 1904. 

 XII „ Tijdschr.d.Ned.Dierk.Ver.,v.8, ser. 2,p.202-239.— 

 18, I, 1905. 



XIII „ Tijdschr. V. Entom., v. 47, p. 114—135. — 14, I, 1905. 



XIV „ „ , „ V. 48, p. 1-24. - 31, XII, 1905. 

 XV „ „ „ , V. 51, p. 28—88..— 6, V, 1908. 



XVI , „ „ „ v.49,p.237— 270. — 29,XII, 1906. 



XVII „ Zeel. Jahrb., Abt. f. Syst. etc., v. 26, p. 567—590. — 



20, VIII, 1908. 

 XVIII . Tijdschr. v. Entom., v. 53 (not yet published). 



The Series are independant one from another. 



0. 



