The male of Thanatus striatus C.L.Koch 
(Aran, Philodrom.) found for the first time. 
By 
Jens Brendegaard. 
On May 10th 1915 I found 2 dd and 3 OQ ofa 
spider belonging to the Genus Thanatus C. L. Koch. 
The animals were found creeping in the sunburnt sand 
near a tuft of grass in the downs near Hornbek on the 
northern coast of Sjælland (Sealand). The females were 
easily recognized as 7A. striatus C. L. Koch, the male of 
which species has as far as I have been able to ascertain 
never been found before. The males evidently could be 
determined as 7h. ursus E. Simon, the female of which 
has not till now been found. 
Being however relatively sure that these five spiders 
must belong to the same species, I sent one male and 
one female to Mr. E. Simon, Paris, who kindly informed 
me that he could discover no difference between my male 
and his own, 7h. ursus E. Simon. Still because he had 
found his uwrsus- on an alpin meadow at a height of 
m 2000, while mine was found on a down near the sea 
he didn’t feel convinced that these two males really be- 
long to the same species. 
On May 17th, 1919 I revisited the spot and caught 
three 7h. striatus-OQ, but in spite of close examination 
of the neighbourhood not a single g. Continuing my 
