trapeziform


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Related to trapeziform: Trapes

trapeziform

[trə′pē·zə‚fȯrm]
(biology)
Having the form of a trapezium.
References in periodicals archive ?
28-32): syntergosternite semicircular, epandrium broad; surstylus with 2 long and furcated apical processes (the lower one slightly wider than the upper one) and narrow distance between apical part of 2 processes in ventral view; hypandrium with narrow lateral arms in lateral view; pregonites and postgonites each in form of a pair of asymmetrical subuliform processes; phallus with a trapeziform sclerite, round apically in ventral view; phallapodeme shorter than phallus, curved basally in ventral view (there are slight differences in angle of pregonites versus postgonites, and length of phallapodeme among specimens).
5x as long as broad posteriorly, with small, isolated glymma and short, shallow groove before glymma, with petiole round or slightly trapeziform in cross-section.
The imagines are characterized by the following character combination: Antenna with 13 clavola; wing vein R2+3 present, without setae in wing veins, squama with11-13 long setae; mid and hind tibia with two tibial spurs; mid and hind legs with 2 pseudospurs on ta1, ta2 and ta3; length of ta4 shorter than ta5 in all legs; inferior volsella trapeziform, with numerous microtrichiae and 18-25 apical weak setae.
3D): Trapeziform, with supragenital bridge, not turned relatively to other segments, apex of ventral wall placed almost medially.
7) slightly convex anteriorly, almost trapeziform, with three setae mesally, a field of setae on posterior third and a field of microsetae along posterior border.
MOA trapeziform, longer than wide or as long as wide.
5-3 mm long, green, base obtuse, apex obtuse and minutely apiculate, compressed laterally, dorsifixed at 1/3 of their length above the base; pollen sulcate, subellipsoid to trapeziform, exine microreticulate with irregularly polygonal lumina, muri thickened; stigma simple-erect, ca.
The stainless-steel exterior housing is a trapeziform design, which allows placement of multiple feeders around a central point of discharge to save floor space.