brachypterous


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Related to brachypterous: macropterous, brachiopod

brachypterous

[brə′kip·tə·rəs]
(invertebrate zoology)
Having rudimentary or abnormally small wings, referring to certain insects.
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We collected 410 individuals (77 macropterous and 333 brachypterous, see details in Table 1) of Metrioptera roeselii from which we selected equal numbers (42-42) of macropterous and brachypterous individuals, with a nearly equal proportion of males (40) and females (44).
The following data were measured in both sexes and separately in macropterous and brachypterous individuals: dry body weight, thorax weight, and abdomen weight.
MEASUREMENTS (N = 2): Male and Female (in parentheses) brachypterous form: Head length 1.
Poisson (1949) reported that approximately 90 % of the individuals from Democratic Republic of the Congo were brachypterous and 10 % macropterous.
STRUCTURE: Wings with straighter costal margins than in Schuhistes leckkersingia; brachypterous, with reduced cuneus and membrane.
I also describe in detail the brachypterous specimens first, and then the macropterous.
Nevertheless, we consider that the combination of the shape and carination of the head, the wing venation, the disproportionate length of the rostrum and legs (very noticeable in brachypterous individuals), the genital characters and the unique longitudinal face coloration pattern, are remarkable enough to erect a new genus.
Such characters are typical of shortened wings, which can be divided into brachypterous and micropterous forms.
Since males are macropterous, while females are brachypterous and flightless, this may have contributed to the fact that the latter were captured in greater abundance in almost all collecting events.
Our data confirmed the existence of only 2 clearly defined morphological forms, brachypterous and macropterous, in both M.