Tuesday 10 February 2015

Last Summer's Predation

Spider, Tegenaria species, predating Pale Mottled Willow, Paradrina clavipalpis. Near my garden light trap in Hayes on 21 June 2014.
Spider, Tegenaria species, predating Pale Mottled Willow, Paradrina clavipalpis.
Near my garden light trap in Hayes on 21 June 2014.
Some of last summer's spiders were quite active.  This Pale Mottled Willow moth had been resting in the crack between the garage door and its jamb.  When I opened the door, it fell to the ground, right into a few strands of web that this Tegenaria spider had spun just under the door opening.  Sensing that something had fallen in, it ran out and grabbed the moth.

Well, the spider was happy, and this also shows off the very light underwings that are typical of the moth.

Jersey Tiger, Euplagia quadripunctaria, being eaten by Garden Spider, Araneus diadematus.  Near my garden light trap in Hayes on 16 August 2014.
Jersey Tiger, Euplagia quadripunctaria, being eaten by Garden Spider, Araneus diadematus.
Near my garden light trap in Hayes on 16 August 2014.
Jersey Tigers are large and colourful moths that used to be scarce here, but now arrive in some numbers over a period of three to four weeks every year.  This orb web spider clearly appreciates the way they come to the light of my trap.

Harvestman, Leiobunum rotundum.  Male.  In my garden light trap in Hayes on 7 June 2014.
Harvestman, Leiobunum rotundum.  Male.  In my garden light trap in Hayes on 7 June 2014.
I also get Harvestmen in my trap.  They are arachnids, related to spiders, but different in several important ways.  I am showing this one because ..

Nursery Web Spider, Pisaura mirabilis.   Male.  Eating a Harvestman, a male Leiobonum rotundum. In my garden light trap in Hayes on 19 May 2014.
Nursery Web Spider, Pisaura mirabilis.   Male.  Eating a Harvestman, a male Leiobonum rotundum.
In my garden light trap in Hayes on 19 May 2014.
Spiders like them too.  A trap full of insects naturally attracts predators, but some of them are more at risk than they would probably like, were they capable of liking things.

(This Nursery Web Spider would have started with eight legs, but has lost two.  I quite often see spiders with missing legs.  The spider at the top of the page and the harvestman in the photo above have both lost a leg.  It doesn't seem to slow them down.)

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