58 LIST or DUTCH ACARI. 



Remark s. 



1. — The genus Acann^ , founded by Linné, 4735, in his 

 Sy sterna Naturae, 1st edition, contained up to the year 1769 all 

 the mites known to him both by own observation , as well as by 

 that of other authors. In 1769 Müller created (he genus Hi/drachna, 

 including all the fresh water mites, known to him. Fabricius in 

 \\\ii Geiiera Insectorum ^ illl . made a third genus, viz: Tromùidmm, 

 based on Acarxs Jiolosericeus Linn. , giving to the genus this name , 

 as this species by its sparkling scarlet colour resembled a drop of blood. 



Up to 1795 these three genera were ranged with Lepisma , 

 Podura , Termes, Pediculns , Pidex, Plialangiuvi , Aranea, Scorpio, 

 Cancer , Monoculus , Ouiscus , Scolopendra , Julus , and several new 

 subgenera and genera , created by Fabricius and Gmelin , into the 

 order of Insecta Aptera. — In this yeai' Latreille created the 

 geneia Argas, At o urns , Ixodes, Bdella and Parasitus , which he 

 put together with the already existing three genera, and with 

 Pycnogounm , Siro and Chellfer into the family of « Tiques » i. e. 

 (( Mites )) (Magazin Encyclopédique). 



Instead of the French name « Tiques » he used the term 

 (( A.cares » in his Précis des caractères génériques des Insectes, 

 disposées dans un ordre naturel, 1797. Though this term has a 

 French final syllable, it is a pure latin word; it is the plural of 

 the latin Acarus. Latreille joined to his « Acai'es >^ some few 

 other genera, which he believed lo be true Mites. Though we know 

 at present, that these genera, viz : Nycterlhla, Pycnogonum.^ Siro, and 

 Chellfer are no mites, and were therefore subsequently removed 

 from them , we have here in the term « Acares » ( == Acari) the 

 Jirst and oldest denomination of the ^rö?^/? that contains all the mites. 



Synonyms of the term Acari are the following : 



1802, Acaridiae , Latr. (« Acaridiens ») Hist. Nat. Crust Ins.; 

 Latreille in Cuv. Regn. Anim. 1st ed. Ill , index , 1817 : Nitzsch 

 in Ersch und Grub. AUg. Encycl. Wiss. I, p. 249, 1818; HerinCx 

 in Nov. Act. Nat. Cur. 1838; van Leeuwen; Verb ov. d. Schurft 

 d. Dieren, 1847. 



1804, Holetra, Hermann Mem. Apt. p. 11; Latr. in Cuv. 



