Rr. Jackson et al., PREDATOR-PREY INTERACTIONS BETWEEN AGGRESSIVE-MIMIC JUMPING SPIDERS (SALTICIDAE) AND ARANEOPHAGIC SPITTING SPIDERS (SCYTODIDAE) FROM THE PHILIPPINES, Journal of insect behavior, 11(3), 1998, pp. 319-342
In Los Banos in the Philippines (Laguna, Luzon), Scytodes sp, indet. i
s a web-building spitting spider (Scytodidae) that preys primarily on
jumping spiders (Salticidae) and Portia labiata is an aggressive-mimic
jumping spider that preys especially frequently on Scytodes, Tactics
by which three species of Portia (P. africana, P. fimbriata, and P. la
biata) and, for Portia labiata, three disjunct populations (Sri Lanka
and, in the Philippines, Sagada and Los Banos) capture this especially
dangerous prey are compared, Local adaptation to Scytodes by the Los
Banos P, labiata is discussed. The Los Banos P. labiata uniquely made
consistent use of tactics (soft plucking with palps and signal-detour-
leap sequences) that were apparently responsible for greater prey-capt
ure success and more effective avoidance of being spat on. Inter- and
intraspecific differences were evident despite having used Portia that
were reared in the laboratory with no prioir experience with scytodid
s.