Jjipteni Xematocera from Sjjitshergen. 203 



Cuinptocladius eltuni, sp. n. 



Bear Island: near taru 4, S.W. of island, 17. vi. 1921 ; 

 on bare rock, c. 50 ft.; 3 cJ , 1 $ . Walrus IJay, S.E. of 

 islaud, 22. vi. 1921 ; c. 20 ft., on stones and walking on 

 edfje of wet moss tundra, 6 J* , 3 ? . 



Wholly black ; thorax somewhat sliining. Eyes small, 

 bare, entire, and very widely separated. Pal|)i long. Au- 

 tennie of cJ 13-segmented, first three flagellar segments 

 rather swollen and somewhat broader than long ; penulti- 

 mate segment about half as long again as broad ; terminal 

 segment about two-thirds as long as segments 2-12 together. 

 Antennae of ? 6-segmented ; segments 2 and 3 nearly 

 globular ; 4 and 5 oval ; 6 pointed, rather longer than 4 

 and 5 together, without sense-bristles, but with a whorl of 

 long hairs close to the base, a slight contrictiou beyond 

 this ; sense-bristles on 3-5 short and slender. Mesonotuni 

 with small, black, lanceolate scales mixed with the long 

 hairs ; the scales with short stems and short sharp points, 

 the broad portions occupying rather more than half their 

 length. 1^ hypopygium (fig. 4) : ninth tergite with a small 

 central terminal emargination, no trace of a long point ; 

 side-pieces with a double lobe on the inner side, the basal 

 part of the lobe finger-like, the apical part broad and 

 rounded ; clasper not enlarged, with a moderately long spine 

 which almost continues the direction of the longitudinal 

 axis, and a short, rather sharp, and somewhat curved terminal 

 point internal to the spine. Lamellte of ? rather short, 

 without long hairs. Legs without long hairs (J 9 ), the 

 longest being hardly longer than the diameter of the seg- 

 ment bearing them ; spur of front tibiae somcAvhat longer 

 (J), or distinctly shorter ( ? ), than the tibial diameter. 

 Fourth tarsal segment on all the legs (cJ ?) about two- 

 thirds as long as the fifth. Empodium as long as the claws. 

 Jl'ings slightly greyish, finely punctate under a magnification 

 of 80, covered with minute setie visible only under a magnifi- 

 cation of 300. Costa reaching about one-fourth of the 

 distance from the tip of R^ to the tip of il/, the terminal 

 portion about as long as the oblique cross-vein. li^ dis- 

 tinctly ending in the costa not far from the tip of Hi. Base 

 of fork of Cu far beyond the cross-vein (three or four times 

 the length of the latter) ; lower branch rather strongly 

 arcuated. Ilalteres black ; base of stem lighter. Wing- 

 length, 2-2'2 mm. ; body-length, ^ 2*2 mm., ? about 

 I'H mm. 



Kiefl'er has described three species of this genus with 



