cribellum

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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 ?
Himalmartensus new genus can be diagnosed from other amaurobiids, agelenids, and genera of other related families by at least: (1) AMS represented by colulus as in Rubrius and some Macrobunus species; (2) single chilum, as in Rubrius, and Amaurobius-related genera; (3) smooth trichobothrial base, as in Rubrius and agelenids, all others being either longitudinally or transversely striated, and (4) four simple tracheal tubes, but branched tubes in Cybaeus, Rubrius and Macrobunus.
14-36) AMS colulus colulus colulus (Griswold et al.
In his phylogeny, maternal care optimized to the node leading to all instances of sociality (Anelosimus Simon 1891 plus Theridiinae, or the "lost colulus clade", see Agnarsson 2004, fig.
Colulus small, conical, with two posteriorly projecting hairs.