hemelytron

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hemelytron

(hĕ-mĕl′ĭ-trŏn′)
n. pl. hemely·tra (-trə)
One of the forewings of a heteropteran insect, having a thick leathery base and a membranous apex.
References in periodicals archive ?
Hemelytra" Clavus and corium fused into a coriaceous pad, meeting each other along midline for almost the entire length; hemelytral membrane reduced to small pads, reaching third or fourth abdominal tergum.
1) (n=2; plus holo-type measurements in parentheses): Length from apex of clypeus to apex of hemelytral membrane 3.01-3.04 mm (3.14 mm), width across widest area of hemelytra 1.07-1.09 mm (1.20 mm).
DESCRIPTION: Male (holotype): COLORATION: General coloration yellow with dark brown and pale pink spots on antennal segments I to III, anterolateral margins of pronotal disk, corial veins, posterior half and upper margin of connexivum, thorax, legs, abdominal sterna, and genital capsule; head dorsally yellow with short dark brown spot anterior to each ocelli; antennal segment IV pale castaneous orange; labial segments I to III pale yellowish orange and IV dark orange; apex of scutellum pale yellow; hemelytral membrane translucent with veins and basal angle brown; labial segments I to III yellow and IV dark orange; anterior and posterior lobe of metathoracic peritreme pale yellow; abdominal segments pale castaneous orange, scattered with brown and pink spots; mesopleura black.
Dorsal coloration: head black; antennal segments I to III yellow, IV pale brown; pronotum and scutellum shiny orange; clavus shiny orange with black punctures; corium shiny orange with black discoidal spot adjacent to inner face of apical margin; hemelytral membrane pale brown; connexivum black with lateral border shiny orange; abdominal terga III to VI orange, VII black.
This species is distinguished from other members Of Acroleucus by a combination of the following characters: coxae yellow with basal third brownish hazel, trochanters and bucculae yellow, head dorsally and antennal segment IV black to reddish brown, hemelytral membrane dark brown with apical margin widely hyaline, and pronotum dark brown with anterior, lateral, and posterior margin widely yellowish orange.
Hemelytron: Pale yellowish green, with clavus, baso-medial region of corium, large cell, and hemelytral membrane variably and diffusely dusky.
Description: Male (n = 3): Length to apex of hemelytral membrane 3.46-3.64 mm, length to apex of abdomen 2.82-2.84 mm.
Elongate, ovoid, lateral hemelytral margins weakly rounded; total length 3.25-3.30 mm (see Table 1).
Hemelytra: reddish brown, finely maculate with dark yellow, veins creamy white flecked with small black dashes, wing membrane dark brown to black, hemelytral apices reaching to posterior margin of abdominal tergite VI; dorsal prothorax and hemelytra bearing scattered short, stout, erect, pale setae.
Scanning electron micrographs (SEMs) were taken for two species including the type species of each genus, which show head and prothorax in lateral view, evaporatory areas associated with the metathoracic gland, pretarsi, and vestiture on the hemelytral corium.
5A, B); calli distinct, weakly elevated, not confluent; pronotum nearly flat longitudinally, very weakly convex transversely, lateral margins very slightly convex, posterior margin very shallowly concave; proepisternal supracoxal lying flat against coxa, not protruding; costal hemelytral margin weakly convex (Fig.