5: 
THERIDIOSOMA FASCIATUM. sp n. 
Dcscriplion of Pbte 57 ? — a, spider, mag. ; it, natural ske ; profile; cephalo- 
thorax, underside; eyes; / epigyne ; ^, do-, profile; A, palpus from below; 
, do. si de view ; ^, snare. 
$ Total length, 2 ; cephalothorav, i ; breadth, i ; do. in front, ^ ; abdomen, i }4 ; 
breadth, 1% ; height, j}4 niillini. Leg, i, — 2; ii — 1 ; iii. — 1; iv. — t}^ millim. 
Patella + tibia, i\\—}4 millim. As the spider is so small, measurements are only approxi- 
mate. ? Though much reseinbltng is considerably smaller than it, T, fasciatum 
is closely allied to 21 arganf solum Carabr., the type of the genus, and T, radiosa^ 
M'Cook, which Prof. Thorell considers to be quite identical with T. gemnmum L. Koch. 
This spider constructs an orb web, though rather an imperfect one, and then draws 
out the centre of the web and holds it out taut with a trap line until an insect becomes 
entangled, when it suddenly lets go, thereby more securely holding its prey, as described 
by Dr. M'Cook in his exceedingly interesting work on "American Spiders and their 
Spinning Work, vol. i, page 195," 
It is not uncommon in the Botanic Gardens, Singapore. 
Type in my collection. 
