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Twig-Like Feather-Legged Spider


Twig-Like Feather-Legged Spider
Informação sobre a Foto
Direitos de Autor: Ang Hwee Yong (Meerkat) Silver Star Critiquer/Gold Note Writer [C: 20 W: 0 N: 896] (5258)
Género: Animals
Meio: Cor
Data da Foto: 2014-11-02
Categorias: Insects
Câmara: Nikon D300, Tamron SP 90mm 1:2.8 Di - Macro 1/1, Raynox M-250
Versão da Foto: Versão Original
Data de Submissão: 2014-11-02 17:59
Visto: 1532
Pontos: 0
[Notas - Normas] Nota do Artista
(Notes: From A Guide to Common Singapore Spiders
by Joseph K H Koh)

Twig-Like Feather-Legged Spider

Classification: Family Uloboridae, Feather-Legged Spiders.
Habitat: Bushes near jungle fringes.
Female: 7 mm.

Spiders of the genus Miagrammopes have a very flat carapace and have eight eyes arranged in two rows.

The first row may be poorly developed, thus giving the impression that they have only four eyes.

Miagrammopes spiders do not spin orb-webs. Instead, they build a single-line snare which is fastened to a twig on one end and held taut by the first pair of legs at the other end. When an insect lands and hits the thread, the spider releases the line which springs back and entangles the insect.

Spines on leg Uloborids and several related families have a cigar-shaped plate (cribellum) on the underside of the abdomen, in front of the spinnerets. The upper margin of the second last segment (metatarsus) of the fourth leg is armed with a row of strongly curved spines known collectively as the "calamistrum". It is through the combined action of the cribellum and calamistrum that the bluish silk characteristic of the Uloborids is produced. The front legs of the Uloborids are extraodinarily long, often longer than the entire length of the body. Unlike other spiders, Uloborids do not possess venom glands.


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