The other 2 females were not different from many Tharos of the summer brood, having large discal patches on under side of hind wing, besides the markings common to the summer brood.
Discal bristles: Diptera; are inserted on the middle of the abdominal segments before the hind margin.
Discal area: of a wing applies especially to the more central portion, or that area covered by the discal cell.
Discal patch: in some male Hesperidae the oblique streak of specialized black scales on the disc of the primaries.
Discal cell: Lepidoptera; the large or median cell extending from the base of the wing toward the center: = radial cell (Comst.
Discal vein: Lepidoptera; the cross-vein closing the discalor median cell extends from radius 5 to media 1.
Peristome narrow; no pteropleurals, two sternopleurals; two orbitals in the female; second segment not elongate; the fourth with two well developed discal macrochaetae.
Front tibiae each with one or two spurs, or if absent, then no discal cell.
When an object of any kind is placed on the disc, and the surrounding tentacles are inflected, their glands secrete more copiously and the secretion becomes acid, so that some influence is sent to them from the discal glands.
At the same time the discal glands secrete more copiously, and the secretion becomes acid.
Two of the leaves to which meat had not been given had their discal glands dry and much injured.
The acid seems to be secreted quickly, for in one case the secretion from the discal glands, on which a little powdered casein had been strewed, coloured litmus paper, before any of the exterior tentacles were inflected.
Bits of meat were then given them, and next day they were well inflected; notwithstanding that some of the discal glands had been rendered almost colourless.
The discal stigma of the male upon the fore wings is much longer than in L.
The markings of the under side are much as in the preceding species, but the line on the hind wing dividing the discal from the limbal area is broader and very white, and the spots between it and the margin more conspicuous.
The discal area is buff, and the belt is pale yellowish-buff.
There is no discal stigma on the fore wing of the male.
The discal spot on the lower side is centered with green.
On the under side the fore wings are colored as on the upper side as far as the termination of the discal area, which is marked by a narrow transverse band of pale yellow, followed by a conspicuous ocellus.
The male on the upper side is dusky-olive, with a black discal streak below the cell, which is slightly touched with reddish, becoming deeper and clearer red on the costa at the base.
The male never has a costal fold on the fore wings, and but rarely is provided with a discal stigma.
The figure in the plate gives the upper side of the male, in which the discal streak is composed of light-colored scales of the same tint as the rest of the wing, in this respect resembling the allied P.
The portion of the wings which is nearest to the thorax at the point where they are attached to the body is called the base; the middle third of the wing is known as the median or discal area, the outer third as the limbal area.
The female is larger, the fulvous ground-color paler, the outer marginal shades darker, and the discal stigma is replaced by a dark-brown shade.
The discal spot of the secondaries is well silvered and margined with pale red.
The upper side is marked very much as in the preceding species, but all the lines are finer and somewhat more regular, and the basal and discal areas of the hind wings are without dark spots in most specimens.
Mr. Meyrick mentions a variety in which the characteristic golden-white discalspots on the fore-wings are absent.
He adds that "the ochreous forms are easily distinguished from other species by the numerous spots and the absence of a continuous pale discal streak; the fuscous forms are sometimes very similar in colouring to P.
The hind wings are greyish white, with black discal dot, and dark-grey curved lines.
The form with a black discalspot on all the wings has been named ab.
The greyish clouding sometimes covers the whole area of the wings, except a very limited space under the black discal spot (ab.
The ample wings light brown in colour, with large black discal spot, and smaller black marks on the front edge of the fore wings, distinguish this species (Plate 95, Fig.
Barrett, occurring with the type in the north of England, is blackish with the discal spot and the veins showing blacker, but without white spots.
There are intermediate modifications leading up to a form in which the whole of the central third of the fore wings is whitish, with the usual cross lines dingy grey, and some tiny clouds of the same colour around the black discal spot.
Occasionally, thediscal mark is preceded by a whitish wedge-shaped spot on the fore wings (ab.
The blackish discal spot on the hind wings varies in size and somewhat in shape, but this and also the line beyond, are sometimes absent.
The blackish marks on the front edge are minute, the cross lines are usually indistinct and often absent; the discal spot, however, is black and conspicuous, and the whitish submarginal line is very wavy.
The hind wings have a whitish discal dot and a band beyond the middle, which is almost parallel with the outer margin.
The male has a black discal spot, and the female a white one, on the upper side of the fore wings; the hind wings have a red or orange band on both surfaces.
Both sexes have a conspicuous white discal spot on the fore wings, and the spots on the under side are white, and rarely centred with black.
Occasionally the black on tip of the fore wing in the female is increased in width, and from it streaks project inwards towards the upper discal spot.
The discal spot on the fore wings may be encircled with bluish-white scales, and now and then this spot on all the wings is surrounded very distinctly with bluish-white.
The male has the discal area of the fore wings bright fulvous, and the outer area broadly brown; the sexual mark is black; the hind wings are tinged with fulvous on the disc, and have brighter fulvous spots.
There are generally some blue scales at the base of the fore wings and over a larger portion of the basal area of the hind wings, but occasionally the whole discal area of the hind wings (Fig.
In these dwarfs the orange patch does not reach beyond the black discal spot, which in normal specimens it usually does.
The male of this butterfly (Plate 94) is blackish, with a small whitish sex mark at end of thediscal cell of the fore wing; there is a small orange spot at the anal angle of the hind wings.
The shade following the black bar at end of the discal cell on the fore wings in the male is sometimes yellowish tinged, not infrequently fairly large, and with two smaller spots below it.
In some examples of this sex the spots on the fore wings are confluent, and the discal area is then fulvous as in the male (Plate 126).
The conspicuous marks in the discal cell, usually black or blackish, are sometimes pale or dark reddish brown.
Sometimes the whole discal area is suffused with brownish.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "discal" in a variety of sentences. We hope that you will now be able to make sentences using this word.
