(db. a. o. oudemans) list ov dutch acari. 113 



Bdellei Dug. 1834. 

 B del la Latr. 1795. 



'22. B(käa egregia Koch, 23, 11, 12, 13. (tenuirostris Koen , 23, 

 18) (Scirns tmlgaris Murray Ec. Ent. Apt. p. 14-4!) Bdella 

 egregis Gerv. lY. 532. — In damp moss, Langweer, June. — 

 Under the bark of Aesculus hippocastanum , Brummen , Aug. 



23. Bileila longicoruis LiNN. — {Chelifer totns ruber , antemiis extreino 

 hisetis. La pince rouge. Geoffr. Ins. II. p. 618. n". 2. t. 20, 

 f. 5.) {Bdella rubra Latr. ?) [Sclrus longirostrls Herm.) {Sciriis 

 Joiigicornis Herm. p. 140.) {Bdella longirostris Koch). — On 

 a wall in a house, Utrecht, July. — In humus, Utrecht, 

 Aug., The Hague, Aug. — Under the bark of Platanus orien- 

 ialis , Utrecht , Aug. — On a dead Passer doruesticiis , Utrecht, 

 July. 



24. Bdella spmirostris Koch. — In decaying leaves , Lochem , Aug. 

 — In damp moss, Warnsveld, Aug. 



2^. Bdella vestiia Koch. — In decaying leaves, Brummen, Aug. 



Rema r k s. 



1. Cnrsoria Grube. — I^och in his Uebersicht des Arachniden- 

 systems. Drittes Heft, 1842, called one group of ^mri « Wasser- 

 milben »; ihei^e ^ve \\\e Ilydrachnellae of Latretllk, 1806; a second 

 group « Sumpfmilben» ; these are the Limnocharidae of Grube ^ 

 1859; a third group « Landmilben » ; these are the Trombidides 

 of Leach, 1814; and a fourth group cc Laufmilben » , containing 

 the Etipodides , the BdeUldes, the Gamasides , the Carabod ides and 

 the Sarcoptides. Since, hovv'ever, the last three groups were removed 

 from the Eupodides and the Bdellides , which two, even at present 

 form together a natural group. There is therefore sufficient reason 

 to retain for this natural group the name of « Laufmilben ». It was 

 Grube, who in 1851 (in Middendorf's Sibirische Reise, p, 37) 

 translated the german denomination of « Laufmilben » into the 

 latin Cursoria. 



2. Tydens KocH. — In 1831 Jenyns created a genus for the 

 Acarns limncum of Schrank, which he called Piiilodromtis (Lou- 



