scutellum


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Related to scutellum: coleoptile

scu·tel·lum

 (skyo͞o-tĕl′əm)
n. pl. scu·tel·la (-tĕl′ə)
1. Zoology A shield-shaped sclerite on the mesothorax of certain insects, posterior to the scutum.
2. Botany Any of several shield-shaped structures, such as the cotyledon of a grass.

[New Latin scūtellum, from Latin, diminutive of scūtum, shield; see scutum.]

scu·tel′lar (-tĕl′ər) adj.

scutellum

(skjuːˈtɛləm)
n, pl -la (-lə)
1. (Zoology) the last of three plates into which the notum of an insect's thorax is divided
2. (Zoology) one of the scales on the tarsus of a bird's leg
3. (Botany) an outgrowth from a germinating grass seed that probably represents the cotyledon
4. (Biology) any other small shield-shaped part or structure
[C18: from New Latin: a little shield, from Latin scūtum a shield]
scuˈtellar adj
scutellate, scutellated adj

scu•tel•lum

(skyuˈtɛl əm)

n., pl. -tel•la (-ˈtɛl ə)
1. Bot. the shieldlike cotyledon of certain monocots.
2. Zool. a small plate, scale, or other shieldlike part, as on the thorax of insects or the feet of birds.
[1750–60; < New Latin, < Latin scūt(um) shield (see scute)]
References in periodicals archive ?
Polymorphs with number of elytral spots varying from few to 13 spots, commonly six along with one spot on the mid-dorsal line of junction of elytra near the scutellum (Fig.
1B): Ovoid body with the maximum width at the second abdominal segment level; light browned head, jugum and tylus; four dark browned spines at the margin of the jugum; reddish small eyes; dark browned thorax; pronotum with disperse punctuations at its surface; mesonotum with a transversal punctuation row at the middle part; metanotum with a transversal dark browned row of punctuations at its base; pale yellowed antennal and rostral segments; convex mesonotum at the posterior margin in the middle part indicating the scutellum formation; yellowish to white legs; pale pinked abdomen.
First develops the pattern of spots, in a gradual onset, of the pronotum to the scutellum (Figure 2c).
The new genus resembles Arboridia (Zachvatkin 1946) in the following morphological characteristics: crown fore margin weakly produced medially, with paired preapical spots, scutellum with dark basal triangles.
Thorax: Dorsum thorax shiny black; scutellum yellow, hairs yellow
Scutellum dark red-brown, largely apruinose except for two dull gold pruinose areas anteriorly, fine pale yellow setose (apical macrosetae poorly differentiated).
The further development of globular somatic embryos was characterized by the formation of a terminal leaf node, called a scutellar node, which indicated the beginning of the formation of a scutellum (Figure 5E).
Body elongate, hemelytra narrowed at level with scutellum and widened at level across cuneal fracture; each hemelytron with three types of setae: golden and silvery scalelike; long, erect, bristlelike; and short simple.
Scutellum derived callus induction and subsequent regeneration has been successfully exploited for a number of grasses including wheat (He and Lazzeri, 2001), maize (Abebe et al.
10; similar to male in general structure and coloration, with following exceptions: pronotum, scutellum, clavus and inner corium dark yellow, outer corium broadly pale green (Fig.
Medium to large flies; male holoptic; lower calypter narrow, rounded posteriorly, with anteromedian angle distinctly lateral to base of scutellum, not directed towards the scutellum; subcostal sclerite and basal section of stein vein bare (remigium); apical tip ofparaphallus with denticles.