G 
ESBEN-PETEKSEN. 
Fam. EedyuFidae. 
Genus Ecdyurus Etn. 
Ecdyurus hyalinus sp. nov. 
S. Imago (dried). Thorax above dark brown, shining, with the sides paler. Ist, 9th 
and lOth segments dorsally dark brown; 8th segment dark brown in front, with a U-shaped, 
pale brown figure. 
Fig. G. Ecdyurus hyalinus sp. nov. Tibiae and tarsi of &. 
Segments 2 to 7 of abdomen colourless, water - 
clear and transparent. Apical border of eacli of seg¬ 
ments 2 to 7 dorsally of a dark brown colour as the 
thorax. From the above mentioned dark border, at 
each side, two dark spine shaped figures, forming a U, 
are projecting forwards, reachiug the middle of each 
segment. On the middle of abdomen, on most seg¬ 
ments, two very narrow longitudinal, brown lines are 
perceptible. The pleura with a fine brown line, being 
darkcr at the distal end, especially in the 6th and 
7 th segments. Underside colourless. 8th and 9 th 
segments with a flesh coloured tinge. On 8th seg¬ 
ment are two longitudinal, short streaks at the base. 
Setæ yellow brown, at the base with narrow darker 
Fig. 7. Ecdyurus hyalinus sp. nov. a Apex of annulations at the joinings. Legs yellowish brown; 
abdomen with pénis from beneath. Ъ Penis ,, . . , . „ „ .... . . . 
from above. fore tarsi paler. Ail the femora with two dark brown 
b 
