Xyela meridionalis group

Diagnosis. Valvula 3 only 0.85–0.90 times as long as valvifer 2, laterally flattened and in dorsal 0.75 somewhat rounded in cross-section (Figs 89, 103), sensilla field directed caudally, bearing most probably 9 setae; dorsal edge of valvula 2 with sclerotizations each enclosing one or two sensilla campaniformia, aulax terminating preapically; ventral excision of valviceps ca 0.27 as wide as width of valviceps, distal flagella ca 0.95 times as long as width of distal lobe, medial lobe ca 1.25 times as wide as distal lobe (Fig. 135).

Species included. Xyela meridionalis in Taiwan.