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, pl.


(ke-lis'ĭ-ră, -ĭ-rē),
One of the two anterior appendages of arachnids; in ticks and parasitic mites, the chelicerae are piercing and cutting structures, and constitute important feeding organs.
[G. chēlē, claw, + keras, horn]
Farlex Partner Medical Dictionary © Farlex 2012


n. pl. chelic·erae (-ə-rē′)
Either of the first pair of fanglike appendages near the mouth of an arachnid or a horseshoe crab, often modified for grasping and piercing.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.


one of a pair of grasping and piercing organs present in Arachnids and Horseshoe crabs.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
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In males, the cheliceral fixed finger possesses one sessile-form flagellum extending ventrally.
Similarly, duration and frequency of cheliceral tapping by spidermites was also significantly increased on whitefly nymph-infested leaves, even when the nymphs were no longer present, indicating again that palatability may have declined in response to whitefly feeding.
kisses: tactile cheliceral courtship affects female mating decisions in
Chelicerae (length 118-123) with two setiform, barbed cheliceral setae; cha (36-41) longer than chb (24-28).
11); fovea indistinct; clypeus narrow; sternum shield-shaped, longer than wide, with brown or transparent hairs along edge; mouthparts with endites long with rounded tips, longer than wide; labium and endites with scattered short hairs or setae; cheliceral furrow edentate; dorsal surfaces of chelicerae with variable number of short, thick, erect setae.
Movable cheliceral finger without isolated subapical tooth (di) and spinneret moderately prominent in females, extremely reduced in males, cheliceral lyrifissure ldb present.
Chelicerae: Pale to deep orange; surface granulated with scattered, short and long setae; cheliceral furrow with three promarginal teeth, largest tooth medially; three retromarginal teeth, largest tooth situated proximally to fang, smallest distally.
Diagnosis: The habitus of the male is similar to Belippo cygniformis Wanless, 1978 from Ghana, but it may be easily distinguished from it and other congeners by the cheliceral dentition: this species has a toothless promargin and only two teeth on the retromargin, whereas all of the other species have many teeth on both cheliceral edges.
On the contrary, the lateral surface of the cheliceral basal segment is surprisingly smooth.
Cheliceral setae long, setiform and barbed; cha (24-26) slightly longer than chb (16-20).
One somewhat large denticle on the distal aspect of the ventral edge of the movable cheliceral finger of the holotype, the adult female has two to four spaced denticles.
Chelicerae small, downward-directed; cheliceral furrow and fang very short; prolateral lamina small but distinct.