cerci


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Related to cerci: immobile, CECRI

cerci

[′sər·sē]
(zoology)
A pair of posterior abdominal appendages with delicate hairs found on many insects, including cockroaches and crickets, that are very sensitive to the air currents generated by a moving object.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Taxodiomyia female cerci are fused instead of discrete and the gonostylus is widest basally and is asetulose and lined with ridges apically.
Male cerci bifurcate, external part longer and uniformly curved inward, internal branch equally robust but shorter (Fig.
In some species of Megalotheca the male cerci are very different in shape to those of Conocephalus s.
by ocellar seta short but well differentiated from ocellar triangle setulae, scutellar dorsum with moderate grey to light brownish grey pruinosity when viewed from certain angles, cercus in profile with basal two-thirds less robust, apical one-third slightly longer, anterior protuberance between cerci in the midlength smaller, and cerci in posterior view with lateral edges straighter.
Ovipositor: protractible portion of ovipositor about 2.5 times length of tergite 7, covered with rows of spicules and with 2 sclerotized bridges on dorsal region; cerci fused, spheroid, with longitudinal fold, completely covered with setae; hypoproct slightly less than half the length of cerci, slightly longer than wide, narrowed and curved apically, with 2 apical setae.
The following characters are diagnostic for the Class Diplura: antennae many-segmented, flagellar segments provided with muscles, compound eyes and ocelli absent, tarsi I segmented, abdomen with lateral styliform appendages on most or all of the pre-genital segments, body distally with paired cerci of variable form, terminal median filament absent, tracheal system present, malpighian tubules vestigial or absent.
While scavenging the substrate, both repeatedly passed their antennae and foreleg tarsi over their labial and maxillary palpi, labrum, clypeus, and mandibles, as well as rubbed their hindleg tarsi against the cerci (grooming).
Alessio Cerci scored a consolation for Verona in the 76th minute.
1, abdomen (scale bar = 1mm); 2, epandrium, cerci, surstyli and decasternum; 3, hypandrium and gonopods in ventral view; 4-6, aedeagus in dorsal, lateral and ventral view, respectively; 7-9, aedeagus of D.
GENOA v VERONA Serie A BT Sport 2, 7.45pm H 6-13, D 7-2, A 15-2 Genoa BTTS Verona 33% | 30% Win & both score 9% | 6% Over 2.5 goals 24% | 61% Win to nil 21% | 15% Leading scorers Genoa Shirt Goals First MPG G Lapadula 10 5 3 192 G Pandev 19 3 2 379 A Galabinov 16 3 2 406 D Laxalt 93 3 2 981 Verona Shirt Goals First MPG M Kean 9 4 0 249 A Cerci 10 2 2 306 D Verde 7 2 1 636 M Valoti 27 2 1 648 Romulo 2 2 2 764 MPG career minutes per goal.
Relative length of male cerci: longer than large (0) (Figure 11); as long as large (basal width) (1) (Figure 12); larger than long (2) (Figure 19)