Spit shfr gen and Bear Island, 117 



moutli-edge towards antenna3 (a broader stripe each side of 

 tlie facial protuberance and a narrower ill-defined stripe over 

 it). Frontal lunule immediately over the base of antenna3 

 yellow. Abdomen ovate, with narrow, transverse, ill-defined, 

 reddish bands on third and fourth segments only ; these 

 bands are near the base of each segment and do not reach 

 the side-margins, and are broadly separated at the middle. 

 Hind margin oi the fourth segment reddish yellow, of the 

 fifth segment more narrowly yellow. The four anterior tibiae 

 and the apical third of their respective femora yellowish, the 

 tip of hind femora and basal third of hind tibiae more 

 obscurely yellowish. 



Syrphus tarsatus, Zett., var. 



A second female taken at head of Tco Fiord, Gyps Vallej', 

 100—200 feet, on sloj)o with Dri/as and Saxifvaga^ on 

 June 26th, 1921, by C. S. Elton, appears to be a variety or 

 possible distinct species. The face is practically without any 

 trace of yellow ground-colour except between the base of each 

 antenna, though dusted greyish, most conspicuously so at 

 sides and below antennae, leaving the facial protuberance, 

 clypeus, and extreme margin of mouth-edge more shining 

 black. Abdomen narrower, without any trace of bands. 

 Legs darker, the anterior tibiae very obscurely yellowish and 

 only the tip of femora yellowish. Holmgren recorded the 

 capture of females of his dryadis without pale markings on 

 the abdomen. 



S. tarsatus (of which S. dryadis is now considered a syno- 

 nym) occurs in Greenland, Icehind, Northern Scandinavia, 

 Spitsbergen^ Nova Zembla, and North-west Siberia. 



Anthomyidae, 



Acroptena frontataj Zett. 



1 $ , head of Ice Fiord, Gyps Valley, 100-200 feet, on 

 slope with Dryas and Saxifraga, C. S. Elton, June 26th, 

 1921. 



This species has previously been recorded from Spitsbergen 

 by Holmgren; it also occurs in Greenland, Scandinavia, and 

 the mountains of Central Europe, but in the last locality a 

 closely allied species has certainly sometimes been mistaken 

 for the ixwQ frontata, 



Limnophora hyperhorea^ Bohem. 



The genus Limnophoray sens, lat,, which has its head- 

 quarters in the north, is well represented within the Arctic 



