cribellum

(redirected from Cribellate)
Also found in: Dictionary, Wikipedia.
Related to Cribellate: Cribellum, Calamistrum, Ecribellate

cribellum

[krə′bel·əm]
(invertebrate zoology)
A small accessory spinning organ located in front of the ordinary spinning organ in certain spiders.
A chitinous plate perforated with the openings of certain gland ducts in insects.
References in periodicals archive ?
Webs of young cribellate and non-cribellate spiderlings have been studied in Orbiculariae orb-weaving spiders (Eberhard 1977, 1985, 1986).
In this study, we focus on the cribellate spider Tengella radiata (Kulczynski 1909), a species of Tengellidae that builds funnel webs and is restricted to Costa Rica (Eberhard et al.
The family is of interest because it is a cribellate member of the Lycosoidea.
The cribellate genus Tengella (Araneae: Tengellidae?
It seems that the cribellate adhesive threads form a strong and resistant net with the broken radius, inhibiting the spider from pulling the broken radius with reeling movements.
This is probably a consequence of the cribellate adhesive spiral, a thread that is tough enough to keep the radii firmly in place even when a radius is broken.
In this evolutionary scenario, cribellate and viscid orbweavers began with different potentials to take advantage of the new resources where a less costly and more quickly built web, along with the lower tenacity, might have given viscid orbweavers a competitive edge.
Several indirect evidences point to an evolutionary change from a high cost orb web among cribellate deinopoids (Uloboridae plus Deinopidae) to a low cost orb web in the remaining Orbiculariae clade.
The web consists of many pairs of parallel support lines overlain with zigzag threads of cribellate silk that function to entangle prey (Main 1976; Opell 1999).
Nocturnal ecology and water relations of the British cribellate spiders of the genus
This web-decorating behavior is seen in a number of Araneidae, spanning 15 genera and occurring in both ecribellate and cribellate spiders (Scharff & Coddington 1997).
These small to medium-sized, cribellate spiders represent one of the most basal branches of the Haplogynae (Platnick et al.