gnathos

gnathos

[′nā‚thōs]
(invertebrate zoology)
A mid-ventral plate on the ninth tergum in lepidopterans.
References in periodicals archive ?
Diagnostic characters (restated from Whalley 1976) include the round, spatulate, non-bifid uncus (u, a unique shape in the genus), a gnathos (g) with 2 small patches of spines near the center, the mesal margin of the sacculus with 1 tooth (msp), and 5 or 6 large cornuti (c) in the phallus (p).
3] en el ala anterior de la hembra; 10(1) region media del gnathos densamente espinosa; 14(1) anellus armado con microespinas; 16(1) anellus esclerosado y con forma de tridente; 17(1) anellus unido a una membrana esclerosada; 21(1) signum ausente; 23(1) corpus bursae globoso.
Valvas con setas filiformes en la parte media y dos procesos cortos y dentados cerca a su extremo, gnathos corto y algo globoso.
Wilson is a member of the American Dental Association, the Wisconsin Dental Association and Gnathos, a pediatric and orthodontic study club.
antennatus in the shape of the saccus, gnathos and aedeagus, but can be easily distinguished by the shape of the anellus (its branches are widened towards the apex in the new species but are parallel-sided in M.
5): Uncus (0,81 mm) twice the total length of the tegumen (0,49 mm), curved ventrally and distal end is like a hook; gnathos very reduced; valva dorsal process is rounded and located at the base, three little sharp teeth are in the inner margin of the valva (Fig.
The uncus is reduced, oval and bifid, densely setose with anteriorly directed short and strong setae; the gnathos is more or less triangular; the tegumen is reduced, carrying long setae at the distal end; the valves are long and leaflike; the saccus normal, the phallus long and slender, with walls well sclerotized; the vesica with long sclerotization and with the distal half ornamented with numerous short spines.
Uncus con bordes angulares, algo redondeados e irregulares, saccus delgado y recurvado hacia abajo, valvae rectangular con una espina evidente en su culminacion, gnathos grueso y aedeagus grueso en la base y luego curvo y adelgazado notablemente.
25-28): Uncus long and finger-like; gnathos broadened posteriorly with sclerotized teeth dorsally; juxta simple, oblong; transtilla membranous medially; valva simple, broad posteriorly, curved in above junction of tegumen and vinculum and continuing less broadly to anterior end.
since 1959 and has owned Gnathos Dental Laboratory, a private laboratory and research facility specializing in high-level ceramics, for more than 30 years.
Uncus bifurcated at base, 1/2 times as long as tegument, each fork medium-long, slender at apex, broad at base; tegumen wide and arc-shaped, socii broad and wide, incurved at apex and strongly setose, shorter than uncus; gnathos degenerated; 1 pulvinus between tegument and valva, finger-shaped protuberance at pulvini; valva clavate, wide and thick at base; cucullus thin and long, strongly sclerotized; juxta similar triangle-shaped; saccus medium-long and thin.