Urosternite

U`ro`ster´nite


n.1.(Zool.) The sternal, or under piece, of any one of the uromeres of insects and other arthropods.
References in periodicals archive ?
It was included in the Section 2 of the tribe Pentatomini by having a free median tubercle or spine at the base of third urosternite, without the posterior margin of the metasternum produced in apposition to the apex of that tubercle or spine (Rolston et al., 1980; Rolston and McDonald, 1981).
Urosternite Vil with a large dark brown to black spot at middle in both sexes.
2005), this is applicable, but Acmaeodera lupinae Nelson, 1996 females have 5th urosternite more elongated than in the male (Nelson 1996).
We looked for characters that were useful to differentiate each sex, such as the shape of urosternites and elytra (Macrae 2003; De Nadai et al.
Rostrum 3-segmented, well developed, surpassing the third urosternite in repose.
Epistomal suture shallowly concave; postand anteclypeus together 1/3 the length of frons, median carinae of postclypeus prominent, anteclypeus rounded, median carina almost extinct; well developed, 3-segmented rostrum, exceeding the third urosternite. Antennae terete, slender, surpassing epistomal suture; basal segment distinctly longer than broad (3x the width); second segment as long as the first, subglobose, with 14-16 sparse antennal sensorial pits irregularly arranged over whole surface, 6 around frontoapical margin (Fig.