Xyela meridionalis, Shinohara, 1983

Blank, Stephan M., Shinohara, Akihiko & Altenhofer, Ewald, 2013, <strong> The Eurasian species of <em> Xyela </ em> (Hymenoptera, Xyelidae): taxonomy, host plants and distribution </ strong>, Zootaxa 3629 (1), pp. 1-106 : 61

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.

Figures

FIGURES 86–94. Ovipositor sheath, sensilla pattern and sensilla plate (spl) at the apex of the ovipositor sheath. 86, Xyela helvetica. 87, X. longula, arrows indicate the modified hairs at apex of valvula 1. 88, X. lugdunensis. 89, X. meridionalis. 90–91, X. alpigena. 92–93, X. curva. 94, X. densiflorae.

FIGURES 95–104. Ovipositor sheaths of Xyela species. All figures at same scale. Legend: HT—holotype; PT—paratype.

FIGURES 126–135. Penis valves of Xyela species: X. longula groups, X. lugdunensis group, X. alpigena group, X. meridionalis group. 127, tentatively identified male of from Tence (France: Auvergne, MNHN), see text. 128, paratype of X. nigroabscondita.