Holotype, , “ RSA, North Cape, Kamieskroon, Farm Windhoek, 16.x.2007, leg. W. Mey;” “Bachtal, ca 2 km oberh. Farmhaus [stream valley, appr. 2 km above farm house];” “Gen. präp. [genitalia slide] Gaedike Nr. 7529;” “ Holotypus Acrolepiopsis lativalvata sp. n. det. R. Gaedike 2016;” ZMHB.
Derivatio nominis: Named after the broad apical part of the valvae.
Diagnosis (Fig. 3): Wingspan 10 mm. Head dark grey, scales with whitish tip; labial palpus with same colouration, segments apically whitish. Scape of antenna dark grey, flagellum ringed, thorax and tegulae with same colouration as head. Forewing with dark grey scales, apically white; at 1/3 on dorsum wedge-shaped white patch, characteristic for the genus, reaching the cell, white are also four thin stripes on costa between 2/3 and apex, the area around the stripes overlaid with white scales. The fringe basally with some minute white dots; fringe with two dark scale-lines. One dark grey-brown patch on costa between 1/2 and the first stripe, another patch on dorsum lateral of the wedge-shaped patch. Hindwing grey.
Male genitalia (Figs 14–16): Vinculum laterally narrow, ventrally triangular with a long narrow saccus with rounded tip; valva basally rounded, with long bristles, first third narrowest, the apical part broader, apically truncated with rounded angles; phallus slightly curved, basally broad rounded, narrower towards apex, as long as the entire genitalia apparatus.
Female genitalia: Unknown.
Remarks: Superficially characterized by scales with white tips and the pattern on apical third of forewing. The broad valvae distinguish the species from the other taxa in this genus.