xxxiii, '22] ENTOMOLOGICAL NEWS 77 



doubt that this affinity points to a former connection between 

 the Antarctic continent of which the South Orkneys once 

 formed part, and the northern continents." 



The other group of terrrestrial Arthropods represented in 

 the meager south polar fauna, the Acarina, have been studied 

 by Trouessart and by Berlese. It is interesting to note that 

 these two authorities on mites hold almost opposite views in 

 regard to the significance of the geographical distribution of 

 the Antarctic Acarina. It is largely because of noting this fact, 

 but also because of the present writer's knowledge of the 

 American Acarina. that these lines are written. A further 

 incentive is found, however, in the recent acquisition of a mite 

 collection from the Antarctic Region through Captain George 

 H. Wilkins. of the British Imperial Antarctic Expedition of 

 1920-21. 



The material left by Captain Wilkins consisted of a vial of 

 insects and mites. Three species are represented, one spring- 

 tail and two mites. The specimens were collected on March 

 27, 1921, from Port Lockroy, Weinke Island, lat. 64.50 S. : 

 long. 63.30 W. This island is just off the coast of Graham's 

 Land. The material has been studied and slides made for the 

 United States National Museum. A report is here given. 

 Species found : 



(1). A springtail, Cryptopygus crassus Carpenter. Many specimen-, 

 representing all stages, present. Specimens sent to Dr. Folsom for con- 

 firmation of determination.* 



(2). A beetle mite, Halozctcs (Lucoppia) antarctica (Michael). Many 

 specimens representing various nymphal stages and both sexes of adult 

 stage. 



(3). A camasid mite, Gamasellus (Gainasus) racoi'itzai (Trouessart). 

 A single male specimen found. 



Captain Wilkins made the following note in regard to local 

 conditions, habits, etc., of the species found : "Local conditions: 

 Exposed cracked granite boulders at few feet above sea level 

 on which penguins make their nests. Black-backed gulls nest in 



* Dr. Folsom writes that the specimens sent also agree with speci- 

 mens which Wahlgren referred to C. anturcticus Willem. Folsom also 

 states that he believes the correct name for this species is Ci'vp 

 untarcticus Willem. 



