NON-VISUAL PREY-CAPTURE IN TRITE PLANICEPS, A JUMPING SPIDER (ARANEAE, SALTICIDAE) '

Jumping spiders, well known for their visually-mediated reactions, employ a distinctive set of responses when catching prey in daylight. It is shown here, however, that the jumping spider Trite planiceps readily seizes live house flies in the dark, and that such behaviour is probably accomplished by means of vibratory signals. INTRODUCTIO N Of all the families of spiders, the salticids or jumping spiders alone have achieve d distinction by virtue of a unique and remarkable set of eyes (see review by Forster, in press, a) which they use to find their way about, escape from enemies, hunt and catc