Acari. 423 



brook-Island; Nova Sembla; Siberia; Spitzbergen; Jan Mayen; 

 Bear Island; Arctic Lappland, 



In 1910 Berlese (3. p. 264) established a new speeies for an 

 Oribata found by Strand in Greenland (or perhaps found by some- 

 body else, but belonging to Strand's collection). 



This species, named Spœrozetes strandi, seems to be nothing 

 else than 0. notata Thor. ^). Its diagnosis is as follows: "Badius, 

 pyriformis, setis crassiusculis, longiusculus hirtus. Tecti lamellæ 

 tantum usque in medio antico productæ, lata translamella intersese 

 coniunctæ, apice acutæ, cæterumut in S. setoso conformatæ, Organa 

 pseudostigmatica clavata. Genu et tibia primi et secundi paris seta 

 robusta, spiniformi aucta. Ad. 700 long.; 400 lat." 



Remarkably enough Berlese does not compare it with 0. notata; 

 from the comparison with 0. setosa, which the diagnosis contains, it 

 is, however, evident that S.strandi differs from that species in ex- 

 actly the same respects as does 0. notata, viz. through the shorter 

 cusps of the lamellæ and the presence of a stout bristle on genu 

 and tibia of the 1st and 2nd pair of legs. 



Fam. Sarcoptidæ. 



Subfam. Tyroglyphiiiæ. 

 Tyroglyphus Hering. 

 T. fucorum Oudms. 



Locality: Stormkap, 18th, 21st and 22nd June 1906, together 

 with nymphnæ of P. fucorum. 



Distribution: West-Greenland, Holstenburg, on Bombus sp.; 

 Arctic Lappland, on Bombus alpinus ; Netherlands. 



^) It ought to be mentioned here that Berlese during recent years has split 

 up some of the old genera into a considerable number of new ones. As, however, 

 onh' preliminary diagnosis of these have been published which in several instances 

 are insufficient because not enough detailed, 1 consider it most appropriate to await 

 the publishing of the definitive system before making any attempt to refer any of 

 the species with which I am acquainted to Berlese's new genera. His new genus 

 Sphœrozetes comprizes amongst others Oribata setosa and 0. notata. 



