Bisetose

Bi`se´tose


a.1.Having two bristles.
References in periodicals archive ?
16); coxa 13 + 3 marginal microsetae (holotype 3 + 2 in one coxa, normal in the other), distal marginal seta (dcs) 0.075-0.080 mm long, seta dps distinctly longer than seta dcs;II4 + 10-12 bipinnate coxal spines, III 5 + 7-11 bipinnate coxal spines and IV 6; intercoxal tubercle bisetose.
23); coxa I 3 + 3 marginal microsetae, distal marginal seta (dcs) 0.055-0.065 mm long, seta dps distinctly longer than seta dcs;II 4 + 7-11 bipinnate coxal spines, III 5 + 4-5 bipinnate coxal spines and IV 6; intercoxal tubercle bisetose.
29); coxa I 3 + 3 marginal microsetae, distal marginal seta (dcs) 0.050-0.065 mm long, seta dps distinctly longer than seta dcs;II 4 + 7-9 bipinnate coxal spines, III 5 + 3-4 bipinnate coxal spines and IV 6; intercoxal tubercle bisetose.
36); coxa I 3 + 3 marginal microsetae, distal marginal seta (dcs) 0.07-0.09 mm long, seta dps distinctly longer than seta dcs;II 4 + 6-10 bipinnate coxal spines, III 5 + 4-6 bipinnate coxal spines and IV 5-6; intercoxal tubercle bisetose.
The Orthenches group is similar to Plutellidae in larval and pupal characteristics but differs from the latter in having the male gnathos narrowly fused with the tegumen laterally, and the larval setal group SV unisetose, not bisetose, on the abdominal segment IX (Dugdale 1996).
Mentum with distinct tooth, bisetose. Palpi glabrous, except penultimate palpomere of labial palpi with 2 subapical setae.
Lateral marginal furrow narrow; lateral margins rounded or slightly sinuate in basal half, bisetose; anterior marginal seta on anterior third, posterior marginal seta on basal angle; apex concave, apical angles protruding but rounded.