Apogonalia fraterna Young, 1977

Apogonalia fraterna Young, 1977 View in CoL

( Figs 23–28 View FIGURES 16 – 28 )

Diagnosis. Anterior dorsum pale yellow with black areas. Crown ( Fig. 23 View FIGURES 16 – 28 ) with anteromedian pair of diagonal black arches connected medially; posterior half with mosaic. Pronotum ( Fig. 23 View FIGURES 16 – 28 ) with median stripe and pair of lateral, anteriorly convergent arches, yellow bordered by black. Mesonotum ( Fig. 23 View FIGURES 16 – 28 ) with pair of broad, longitudinal black stripes; median portion yellow. Forewing ( Figs 23, 24 View FIGURES 16 – 28 ) red with whitish stripes on cells, apex gray; claval sulcus with broad and conspicuous blackish stripe bordered by white stripes; costal area with two adjacent longitudinal stripes, innermost white and outermost black. Face pale yellow with black marks; lateral portions yellow; frons with dorsomedian pair of narrow longitudinal black stripes; median portion with inverted Vshaped black mark; pair of mediolateral, elongate Y-shaped black marks. Clypeus with mosaic and ventral black macula. Male pygofer with posterior margin concave ( Young 1977, fig. 752c), long unpaired process on inner ventroapical portion ( Young 1977, fig. 752p). Paraphyses with basal sclerite asymmetrical, rami long and conspicuous ( Young 1977, fig. 752h). Aedeagal shaft approximately rectilinear, with long unpaired ventral process ( Young 1977, fig. 752f). Female sternite VII ( Fig. 25 View FIGURES 16 – 28 ) with posterior margin triangular, apex concave. Sternite VIII ( Fig. 26 View FIGURES 16 – 28 ) with sclerotized plate concave on anteromedian margin, depressed on median line.

Female length. 10.4 mm (n = 1).

Description of female genitalia. Sternite VII ( Fig. 25 View FIGURES 16 – 28 ) moderately produced posteriorly; posterior margin triangular; apex convex. Sternite VIII ( Fig. 26 View FIGURES 16 – 28 ), in dorsal view, with transverse sclerotized plate; anterior margin of plate with broad median concavity; dorsal surface convex, medially depressed; posterior margin truncate. Pygofer similar to that of A. angusta . Valvula I, in ventral view ( Fig. 27 View FIGURES 16 – 28 ), with basal portion moderately broad; basal margin oblique and broadly convex; blade similar to that of A. angusta . Valvula II similar to that of A. angusta ; teeth, on median portion, triangular and elongate, moderately prominent, 3–4 times longer than high, spaced from one another about 0.5 tooth length; preapical prominence approximately aligned to anteapical tooth ( Fig. 28 View FIGURES 16 – 28 ).

Material examined. Mexico: Guerrero, one specimen without abdomen ( BMNH) ; Jalisco, one female ( BMNH) ; Oaxaca, one male ( BMNH) .