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Related to mucro: micro


, pl.


(myū'krō, myū'krō'nēz),
A term denoting the pointed extremity of a structure.
[L. point, sword]


n. pl. mucrones (myo͞o-krō′nēz)
A sharp, pointed part or organ, especially a sharp terminal point, as of a leaf or shell.


any pointed structure, particularly that at the tip of the springing organ (furcula) of Collembola.
References in periodicals archive ?
Considering also the species with unknown chaetotaxy, the new species can be distinguished from them by having the labral papillae wrinkled, eyes H and G smaller than E and F, outer lamella of unguiculus smooth, or mucro with 2 similar teeth size, and from those that are not separated by these characters (for the lack of information about them on the original descriptions), it can be clearly distinguished by the coloration, as they all have some kind of dark pigmentation not present in the new species.
3L), length less than % of width, anterior margin straight and directed backwards laterally, mucro central, poorly evident, antemucronal slope slightly convex (Fig.
Body 1060 1068 CD 384 393 Ant I 47 51 Ant II 86 94 Ant III 159 147 Ant IV 482 459 Dens 236 231 Mucro 86 100 Tibiotarsus I 211 260 Tibiotarsus II 219 266 Tibiotarsus III 275 344 Unguis I 50 39 Unguis II 47 41 Unguis III 55 28 Unguiculo I 21 23 Unguiculo II 21 23 Unguiculo III 28 22
the apical margin of the protibia of the female has a subcarinate ridge ending in an elongate, subacute uncus projecting posteriad, and has an acute mucro on the inner apical angle, partly concealed by 2 clusters of coarse setal brushes anterior and posterior to the mucro.
Tail valve elliptical, with posterior, backward-directed mucro, postmucronal area steep and almost straight (Figs 4O, 4P, 4X).
Hind tibia without lateroventral carina, apex without sinus near mucro and with three denticules and mucro 0.
8, habitus; 9, Post-antennal organ and eyes; 10, tergal chaetotaxy of abdominal segments IV-VI; 11, tergal sensilla of abdominal segments IV-V; 12, Antennal segments III-IV; 13, furca; 14, mucro.
is characterized by the absence of prelabral setae, presence of one spatulate mucro, fusion of the dorsal part of Abd.
Members of the Old World genus Bruchidius are characterized by the presence of a single minute acute tooth on the ventromesal margin of the metafemur at the apical 1/4; the absence of marginal teeth or denticles on the pronotum; pronotum conical or transverse, without lateral carina; presence of a well-developed slender mucro at the apex of the tibia ventrally; and the median lobe of the male genitalia lacking "hinge sclerites" (Bottimer 1968; Borowiec 1987; Kingsolver 2004).
piceeta Stebaeva & Potapov, 1994 in the presence of dorsal la2 of thoracic segments II and III, the absence of ventral seta p2 on abdominal segment II, 1 median ventral seta above the retinaculum on abdominal segment III, and lack of teeth on the mucro.
2] seta on thoracic segments II-III and on the shape of mucro in holotype and paratypes.