CUES BY WHICH SUSPENDED-LEAF NESTS OF EURYATTUS (ARANEAE, SALTICIDAE)FEMALES ARE RECOGNIZED BY CONSPECIFIC MALES AND BY AN AGGRESSIVE-MIMIC SALTICID, PORTIA-FIMBRIATA

Females of Euryattus sp. indet., a salticid from Queensland, suspend r olled-up leaves for nests. Euryattus males respond to conspecific fema les in nests with vibratory courtship. Portia fimbriata, a sympatric s alticid that preys on Euryattus, responds to Euryattus females' nests by mimicking the courtship of Euryattus males. In the laboratory, cues by which potential mates (conspecific males) and potential predators (P. fimbriata females) recognize the nests of Euryattus females are in vestigated experimentally. Both the position of the leaf in relation t o the substratum and the number of threads between the leaf and the su bstratum appear to be important cues by which both the Euryattus males and P. fimbriata females find nests. In addition, chemical cues from Euryattus females influence conspecific males, but there is no evidenc e that chemical cues are important to the predator.