haltere


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haltere

or

balancer

one of a pair of structures found in DIPTERANS. They are thought to be modified hind-wings, normally being small, clubbed organs very much smaller than the forewing. Halteres are probably associated with the maintenance of equilibrium during flight.
References in periodicals archive ?
UBX is required to suppress the growth of haltere cells, and UBX does not do this by suppressing DPP expression directly but through components involved in the interpretation of the DPP gradient [41, 42].
In the wild type third larval instar haltere and wing discs, Hth is expressed everywhere except the pouch (Figures 5(a)-5(c) and 5(g)-5(i)).
(Haltere knob yellow) 4 -- Base of hind tibia normal (Fig.
alboclypeata Chvala by black haltere, bare sensory pit below prothoracic spiracle, simple and unmodified black legs and yellowish-white abdominal hairs.
C ending in M, at wing apex; [R.sub.4 + 5] and M parallel after dm-cu, M strong; CuAx proportion 0.04; knob of haltere whitish.
Na sequencia foi realizado o exercicio de Rosca Direta Supinada, com haltere de 3 kg, estimado como 5,2% da media da massa corporal total da amostra, no braco nao dominante, em 5 series ate exaustao, com descanso de 90 segundos entre as series.
General colouration: Scutum shiny brown, abdomen shiny yellow, with translucent tergites 1+2-4, tergite 5 brown, with grey pollinosity; fronto-orbital plate and parafacial brown, silver pollinose from certain angles; lunule reddish brown; antenna, arista and palpus dark brown; anterior spiracle brown; calypters whitish; haltere with yellow knob.
--Wing membrane (and thin veins) pale (haltere knob pale yellow; hypopygium as in Fig.
Haltere stem yellow, knob black or blackish; calypteres more-or-less equally wide, hyaline, with margin of dorsal calypter partly blackened.
Haltere knob and distal half of stem dark; proximal half of stem pale yellow.