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n. pl. he·mel·y·tra (-trə)
One of the forewings of a heteropteran insect, having a thick leathery base and a membranous apex.


(hɛˈmɛlɪˌtrɒn) or


n, pl -tra (-trə)
(Zoology) the forewing of plant bugs and related insects, having a thickened base and a membranous apex
[C19: from New Latin hemielytron, from hemi- + Greek elutron a covering]
hemˈelytral, ˌhemiˈelytral adj


(hɛˈmɛl ɪˌtrɒn)

n., pl. -tra (-trə).
one of the forewings of a hemipterous insect, having a hard, thick basal portion and a thinner membranous apex.
[1820–30; hem (i)- + elytron]
hem•el′y•tral, adj.
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Eyes small in macropterous and brachypterous, never surpassing dorsal or ventral margin of head in lateral view; beginning of postero-ventral series of fore femur distant from the base of the segment; hemelytron with only discal cell or accompanied by a much reduce subbasal cell; hind wings, M shifted to touch Cu directly for a short distance so as to eliminate the m-cu cross vein (Fig.
The unique reddish coloration of the head, thorax and abdomen in combination with the yellow coloration of the femora and patterning of the transverse fascia on the hemelytron indicate that this specimen represents a separate species from other described taxa of Ausejanus.
Hemelytron dark brown, with fine pale lines creating a network of quadrate dark blotches; lateral margins on distal third with 3 or 4 larger white patches, inner margin with 6 or 7 slightly smaller white patches.
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.
Hemelytron with clavus exposed, reaching apex of scutellum; lateral margins of corium slightly carinate, parallel, almost extending to posterior margin of connexivum II; membrane lacking veins, reaching to base of seventh abdominal segment (Fig.
SURFACE AND VESTITURE: Body smooth, glabrous, without any exaggerated outgrowths or punctation; hemelytron semitransparent.
Hemelytron moderately deflected at cuneal fracture; cuneus narrow.
DIAGNOSIS: Distinguished from other genera of the tribe Phylini by the following combination of characters: general coloration chestnut brown to fuscous; dorsal surface more or less shagreened or roughened, only with simple, semierect setae, lacking scale-like setae; eyes large; antennal segment IV long, almost equal in length to III; hemelytron with uniformly distributed, dark, small spots (Figs.
DIAGNOSIS: Recognized by the elongate oval, subparallel-sided body, shining, generally chestnut brown dorsum with the uniformly distributed, simple pale pubescence, rather developed calli, shiny hemelytron that is shallowly and coarsely punctate (Figs.
DIAGNOSIS: Recognized by the combination of a contrasting yellow fascia on the anterior portion of the hemelytron or overall brown coloration, the presence of simple, reclining setae mixed with stout, thick, brown setae on the head, body and hemelytron; the small, slender endosoma without spines or elaborations, and the hemelytron in the brachypterous female with a greatly reduced membrane, rounded apically, and just reaching the apex of the abdomen.
The cuneo-clypeal length was measured from the apex of the clypeus to the caudal margin of the cuneus in the case of macropterous specimens, and from the apex of the clypeus to the caudal margin of the hemelytron in the case of brachypterous ones.