Adult Thorax Morphology
Adult thorax description:
Laterocervical sclerites with slender, elongate. lateral processes. Metafurca with dorsal apophyses well developed, arising perpendicular from mesa1 lamella free from secondary arms of metafurcasternum.
Legs with tibial spur pattern of 0-2-4.
Forewing length from base of forewing to the apex (mm):
from 3.5 to 12
Forewing radius with 5 branches, Rs2 and 3 either separate, connate or stalked; Rs4 usually to costa in most genera. ter- minating on termen below apex in Nematopogon; accessory cell present; base of M faint, rarely forked within cell; 1A + 2A with short basal fork; S retinaculum a long costal fold extending under base of Sc. Hindwing M1 and 2 either separate or stalked; 1A + 2A with short basal fork.
Forewing cell veins:
Forewing anal vein notation:
Forewing basal loop:
Forewing upper surface with microtrichia:
Hindwing cell vein:
present, with frenulum
Forewings slender, W/L ratio 0.3-0.37; microtrichia usually pre- sent, reduced in some genera.
Hindwings similar to forewings in width, W/L ratio usually 0.35. Male frenulum a single stout bristle, usually accompanied by several smaller setae along costal margin; female frenulum consisting of 3-4 smaller bristles in a row along base of costa.
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