THE SPIDER GENUS TRACHELAS 
(ARANEAE, CLUBIONIDAE) 
IN THE WEST INDIES 
By Arthur M. Chickering 
Museum of Comparative Zoology 
As I have frequently done in the past, I am again expressing my 
deep appreciation for the continued help and encouragement in the 
pursuit of my studies extended to me by the staff of the Museum of 
Comparative Zoology, Harvard University. The National Science 
Foundation has aided me very materially by awarding me Grants 
GB-1801 and GB-5013. Other foundations, not specifically mentioned 
here, have also aided me in my studies and collecting trips in Central 
America and the West Indies. Dr. J. G. Sheals and Mr. D. J. 
Clark, British Museum (Natural History), have kindly loaned me 
males and females of Trachelas fem oralis Simon from St. Vincent, 
B. W. I. 
The Genus Trachelas L. Koch, 1866 
This genus is known to be widely distributed in many regions of 
the world. Many species have been described from Central and 
South America. I have found it quite abundant in Panama where 
I seem to have collected several new species which are awaiting 
attention. As far as I have been able to determine, four species have 
been known from the West Indies. These may be listed as follows: 
Trachelas bicolor Keyserling, now known from Haiti and Cuba; 
T. borinquensis Gertsch, known only from Puerto Rico, W. I. ; 
T. femoralis Simon, known only from St. Vincent, B. W. I.; T. 
jamaicensis Gertsch, known only from Jamaica, W. I. 
While preparing specimens belonging to this genus, collected in 
the West Indies in recent years ? for deposit in the collections of the 
Museum of Comparative Zoology I have found several which, ap- 
parently, must be regarded as new to science. These may be listed 
as follows: T. bravidus sp. nov. ; T. cadulus sp. nov . ; T. domandus 
sp. nov.; T. ecudobus sp. nov.; T. jnulcetus sp. nov. These are 
described in the following pages of this paper and all will be deposited 
in the Museum of Comparative Zoology. Shortly before her death 
Miss Elizabeth Bryant had, apparently, selected a male from Jamaica, 
W. I. to be the holotype of a new species but only fragments are 
now in the vial. I have a female from Jamaica, W. I., St. Catherine 
Parish, Inswood Estate, Nov. 10, 1963 which may belong with one 
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