aedeagus


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aedeagus

[¦ē·dē′ā·gəs]
(invertebrate zoology)
The copulatory organ of a male insect.
References in periodicals archive ?
Other morphological characters used to identify specimens were the external structure of the eggs, the shape of the base of abdominal sternite and of the valves, and the number of cornuti (= spines) inside the aedeagus (12 cornuti sets or less).
In addition to the generic diagnoses, the following features are present in males of both taxa (Figs 10, 32): (1) abdominal sternite 8 strongly sclerotised and pointing ventrally (perpendicular to antero-posterior axis), (2) abdominal tergite 8 laterally elongated, sometimes partly overlapping with gonocoxite-hypandrial complex, (3) gonocoxite-hypandrial complex antero-dorsally with a unique bilobed sclerite (ventral to subepandrial plate) here termed supra-hypandrial sclerite (see Discussion), and (4) aedeagus with two thin and elongate prongs.
Genitalia del macho: figurada en HALL & WILLMOTT (1996), uncus, cuadrangular y truncado en su parte posterior; saccus, largo y engrosado; valvae, aguda y con espicula pequena; aedeagus, grueso y algo elongado.
Vertex with two round spots, head and thorax golden yellow; male pygofer with long, slender hook-like process; aedeagus without paired apical process.
He concluded this despite considering (Pekkarinen, 1995: 66) that "The the tip of aedeagus is more slender in D.
Male genitalia with symmetric parameres; internal sac of aedeagus with submedial lobe, and a set of raspules (brushes), basal lamella shaped as a "magnifying glass" and plate lamella consisting on several structures.
Dorsal valves of aedeagus tapered from base to apex, curving anteriorly while diverging distally.
The traits that separate this species from others were the flat Y-shaped uncus anteriorly and hook-shaped uncus posteriorly, the conspicuously pubescent face in the basal two-thirds, and the elongated aedeagus with the apex widely truncate and projected perpendicularly toward its ventral side showing patches of small setae.
Braunsophila is the most similar to Xestomyza, but can be separated by the following characters: scape much thicker than pedicel in Xestomyza (same thickness in Braunsophila), pair of finger-like extensions on gonocoxite with strong apical setae and apical cap on aedeagus (both features absent in Braunsophila).
Crown and pronotum light brown with black areas; claval veins fused for considerable distance; posterior margin of female abdominal sternite VII with broad median lobe, abdominal sternite VIII of female with two pairs of conspicuous lateral plates sclerotized; shaft of aedeagus robust with gonopore conspicuously visible, aedeagus with pair of ventral processes, processes of pygofer not attaining pygofer apex (Young, 1968; Azevedo & Carvalho, 2006).
A cotton stainer species Dysdercus evanescens Distant is redescribed in detail with special reference to its metathoracic scent auricle, male genitalia including inflated aedeagus and female genitalia including spermatheca.
The gnathos consist of a pair of small, thin, discrete plates below the uncus there being no subuncal projections as are found in Prepona, Agrias and Archaeoprepona; the aedeagus is relatively short (length aprox.