trichobothrium

trichobothrium

[¦trik·ə′bäth·rē·əm]
(invertebrate zoology)
An erect, bristlelike sensory hair found on certain arthropods, insects, and other invertebrates.
References in periodicals archive ?
Spiracle and trichobothrium on the 6th abdominal segment.
7) almost elliptic, setose; sensory fields with eight trichobothria on basal rosettes and one marginal trichobothrium, without basal rosette.
Paraprocts of two pieces, the proximal one joining the clunium, sensory fields with 14 trichobothria on basal rosettes, and one marginal trichobothrium without basal rosette; distal piece with a small sclerotized prong, distally truncate (Figs.
The following abbreviations are used: asl, attenuate solenidion; bsl, blunt ended solenidion; sts, simple tactile setae; T, trichobothrium.
Trichobothrial pattern: neobothriotaxic major type C, with one accessory trichobothrium in the V series of chela; femur with 3 trichobothria (1 d,1 i and 1 e); patella with 19 trichobothria (3 V, 2 d, 1 i, 3 et, 1 est, 2 em, 2 esb, and 5 eb); chela with 27 trichobothria (1 Est, 5 Et, 5 V, 1 Esb, 3 Eb, 1 Dt, 1 Db, 1 et, 1 est, 1 esb, 1 eb, 1 dt, 1 dst, 1 dsb, 1 db, 1 ib, 1 it).
The slender trichobothrium (Tr) arises vertically from a prominent socket; the stronger tactile hair (T) emerges obliquely from a less-developed socket.
In our specimen has been imposible to determine the position of the second trichobothrium because the absence of the chaetae and the similarity of the sockets.
8a), metarsi with one trichobothrium in a subapical position and tarsus without trichobothria.
2] were clearly visible under ultraviolet fluorescence microscopy, but were more difficult to resolve under reflected light microscopy and this may have led to erroneous reports of the loss of this petite trichobothrium.
Trichobothrium with dorsal plate with few transverse grooves projected over a smooth basal plate (Fig.
11); only et trichobothrium is located between db and dt on pedipalp fixed finger, and est is located beside db (Fig.