A NEW COLONIAL ANELOSIMUS SPIDER FROM 
SURINAME (ARANEAE: THERIDIIDAE) 
By Herbert W. Levi 1 and Deborah R. R. Smith 2 
Until recently, only a few colonial spiders were known. The recent 
increase in field work in the tropics revealed a number of new colon- 
ial species (Buskirk, 1981). Some of these colonial spiders belong to 
the theridiid genera Anelosimus and Achaearanea. The genus Ane- 
losimus in America was revised by Levi, 1956, and the knowledge 
updated in 1963 and 1972, with new species described in 1967 and 
1979. Those Anelosimus species known to be colonial are: A. studi- 
osus, A. eximius, A. rupununi and A. lorenzo. Another species has 
now been found in Suriname. While reexamining some of the 
related species in preparation for this description, it was found that 
the synonymy of A. jabaquara Levi 1956 with A. dubiosus (Keyse- 
rling, 1891) in Levi (1963) was in error. While A. jabaquara was 
illustrated in 1956, A. dubiosus is here illustrated for the first time 
since its description in 1891 (Fig. 4). 
Anelosimus saramacca new species 
Figures 1-3 
Type. Male holotype from Voltzberg-Raleighvallen Nature Re- 
serve, Saramacca Province, Suriname [lat. 04°40'N, long. 56° 10'W], 
Feb. 1982 (D. Smith Trail), with 1<J, 5? paratypes in the Museum of 
Comparative Zoology; 1(5, 2$ paratypes in the Cornell University 
collection kept at the American Museum of Natural History; 2$ 
paratypes in the British Museum, Natural History. 
Description. Female. Carapace orange, lighter on sides. Sternum 
orange with some black pigment. Legs yellow-white with distal part 
of articles darker. Dorsum of abdomen with some black and white 
pigment, sides orange-white. Venter of abdomen with some black 
and white pigment, black patch anteriorly and behind genital 
groove, and black patch in front of spinnerets. Eyes subequal in size. 
'Museum of Comparative Zoology, Harvard University, Cambridge, Mass. 02138. 
2 Field of Neurobiology and Behavior, Department of Entomology, Cornell Univer- 
sity, Ithaca, NY 14853 
Manuscript received by the editor September 14, 1982. 
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