Deutsch. Ent. Zeitscür. 1910. 



389 



Notes on Äcari 



XX*^ Series. (Acaridae.) 



By Dr. A. C. Oudemans, Arnhem. 



(With 29 figures.) 



1. Eustathia cultrifera (Rob.). (Fig. 1 — 10.) 

 1868. Pterolichus culirifer Rob. in Compt. Rend. Paris, v. 66. p. 787. 

 1877. Pterolichus cultrif er ,^oh. in Journ. Anat. Physiol. , 1877, 

 p. 392, 408. t. 22. f. 8, 10. 



1877. Pterolichus securiger Rob. in Journ. Anat. Physiol. , 1877, 

 t. 22. f. 8 (errore). 



1878. Pterolichus cultrifer Hall, in Zeit. wiss. Zool. v. 30. p. 514. 

 1878. Pterolichus cultriferus Hall, in Zeit. wiss. Zool. v. 30. p. 533. 



1878. Dermaleichus cypseli Can. in Att. R. Ist. Ven. Sc. Lett. Art. 

 ser. 5. V. 5. p. 53. 



1879. Pterolichus securigerus Can. in Att. Soc. Ven. Trent. Sc. Nat. 

 V. 6. p. 8. 



1880. Pterolichus cultrifer Megn. Paras. Malad, paras. p. 149. 



1885. Pterolichus cultrifer Trt. in Journ. Microgr. p. 57. 



1886. Pterolichus cultrifer Can. 

 Prosp. Acarof. Ital. 

 V. 2.p. 267. t. 20. f. 7. 



1887. Pterolichus cultrifer 

 Groult , Ac. Crust. 

 Myr. p. 62. 



1888. Pterolichus cultrifer 

 Berl. Ac. Myr. Scorp. 

 Ital. fasc. 50. no. 6. 



1897. Pterolichus cultrifer 



Berl. Ordo Crypt. Sarc. ^ 



p. 59. 

 1905. Eustathia cultrifer 



Oudms. in Entom. 



Bericht, v. 1. p. 218. 

 Robin, 1868, only men- 

 tions the name, without de- 

 scription or figure. 



Robin , 1877 , gives an 

 ample description of all the 

 Stades of development. He 

 has, however, overlooked the 

 median vertical hair , the Fig. i u. 2. 



two Short hairs flanking the Eustathia cultrifera (Rob.) Nph. II. 



26* 



