cercus


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cercus

 [ser´kus]
a bristle-like structure.

cer·cus

, gen. and pl.

cer·ci

(ser'kŭs, ker'kŭs),
1. A stiff hairlike structure.
2. A pair of specialized sensory appendages on the 11th abdominal segment of most insects.
[Mod. L., fr. G. kerkos, tail]

cercus

(sûr′kəs, kĕr′-)
n. pl. cerci (sûr′sī, -kī, kĕr′kē)
Either of a pair of appendages located near the tip of the abdomen in many insects and certain other arthropods, usually having a sensory function.

cer·cus

, gen. and pl. cerci (ser'kŭs, ser'sī)
A stiff hairlike structure.
[Mod. L., fr. G. kerkos, tail]

cercus

a bristle-like structure.
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References in periodicals archive ?
Epandrium with strong setae at middle; surstylus with upper blade of bifurcated tip extremely swollen and lower one slightly sharp at tip; cercus arched with short sparse setae, without ventral appendix.
Mesonotum invested with microtomentum, appearing somewhat dull, mostly unicolourous; cercus of [male] bearing several long setulae, especially posteriorly, but
This new species is similar to Chrysotimus xuae Wang, Yang & Grootaert by the brown hairs and bristles on thorax, and the furcated surstylus, but may be separated from the latter by the 7-8 short and black ventral bristles on hind tarsomere 1 base, and the cercus with acute apex.
Remarks: This genus is assigned to the subfamily Trichopezinae on the basis of the presence of an internal apodeme arising from the anterior margin of the female tergite 8, in addition to female tergite and sternite 8 articulated anteroventrally, female cercus heavily sclerotised and female tergite 7 with fringe of setae along posterior margin (as in Fig.
annulicornis Shiraki in having male cercus with simple apex and posterior margin of pronotum obtuse angular but can easily be separated from the same in having four sulci on pronotum, the prosternal process is bifurcate and the female subgenital plate is trilobate whereas prosternal process conical and subgenital plate with subacute median lobe in H.
The female of Pisphondylia can be characterised by having: 1) flagellomeres 9-12 progressively and conspicuously shortened; 2) circumfila wavy; and 3) ovipositor protrusible, elongated, pliable, with long ventral, sparse dorsal setae and tiny cercus.
Distal half of male cercus bent ventrally into a triangular laminar process (Figs.
Matt, right after it was caught by the latter in December 1997 at the same site at a slightly lower elevation: this specimen's remains were used for drawings of the cercus (Fig.
8 times as long as dm-cu; cercus widened with blunt apical margin (Fig.
141); base of surstylus with a few scattered black setulae, shorter than width of cercus (Figs 144, 145) .
there is variation in the number of denticulations on the lower lobe of the internal branch: Usually there are 5 on the left cercus and 3-4 on the right one (Fig.
It is characterized by the following features: neck arising high on occiput; head extending obliquely forward with distinct clypeus and gena; wing infuscate with clear spots; fore tarsomere 2 much longer than tarsomere 3 or 4; subepandrial sclerite extended beyond base of clasping cercus (Sinclair 1995; Yang et al.