1979] Fowler & Levi — New Quasisocial Spider 15 
TABLE I 
COMPARATIVE BEHAVIORAL AND ECOLOGICAL PARAMETERS OF THREE SPECIES OF 
ANELOSIMUS. DATA FOR A. STUD/OSUS AND A. EX1MWS TAKEN FROM BRACH (1975 1977) 
DATA FOR A. LORENZO FROM THIS STUDY. BEHAVIORS ARE DESCRIBED IN BRACH (1975. 1977)' 
PARAMETER 
Anelosimus 
studiosus 
Anelosimus 
eximius 
Anelosimus 
lorenzo 
Geographic 
range 
Temperate- 
subtropical 
North America 
Tropical 
South 
America 
Subtropical 
southern South 
America 
Colony 
populations 
— 50 
>200 
>200 
Cooperative 
prey capture 
present 
present 
present 
Communal 
feeding 
present in 
juveniles, 
not in adults 
always 
present 
always 
present 
Reproductive 
females/colony 
1 
>i 
>i 
Cannibalism 
present 
present 
present 
Brood feeding 
discriminate 
indiscriminate 
indiscriminate 
Dispersal 
solitary gravid 
females 
sociotomy? 
sociotomy? 
Colony life span 
annual 
perennial 
perennial 
No. females/ 
No. males 
-1.0 
-20-79 
-50 
Species recognition 
strong 
weak 
weak 
Social level 
subsocial 
quasisocial 
quasisocial 
