Dacus (Leptoxyda) brunnalis White & Goodger, 2009, sp.n.
Creators: name: White, Ian M.
name: Goodger, Kim F. M.
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Lauxaniidae
Dacus
Dacus brunnalis

description: Dacus (Leptoxyda) brunnalis sp.n.
Figures 39 – 44.
Diagnosis. As D. lounsburyii Coquillett, 1901 except: Thorax. Scutellum with a narrow basal dark margin (fig. 39). Wing. Cells bc slightly coloured (almost as dark as costal band); wing other than costal band and anal streak with a brownish tint, darkening posteriorly (fig. 44). Legs. Fore- and midfemora bicoloured (fig. 43).
Description. Size. Medium, wing length, 8.2 mm. Head (fig. 41). Pedicel+first flagellomere not longer than ptilinal suture. Face, antennal furrow with a dark spot; tear-drop shaped; occupying almost whole width and lower have of furrow. Frons, frontal setae 2, orbital setae 1. Thorax (figs 39, 42). Scutum predominantly dark red-brown, with a black mark anterior to notopleural xanthine and mesal of lateral vitta; postpronotal lobe yellow; notopleural callus yellow; notopleural xanthine wedge shaped (connected to notopleural callus); lateral (narrow) and medial postsutural vittae present. Scutellum without any dark patterning (except for narrow basal dark margin). Anepisternum with a stripe from notopleural callus to katepisternum; extended as a broad xanthine on katepisternum. Laterotergal xanthine confined to katatergite. Thoracic setae. Anterior notopleural seta present; anterior supra-alar seta absent. Wing (fig. 44). Basal cell bc without an almost complete covering of microtrichia; cell c with more than 75% covering of microtrichia; cell bm without microtrichia. Narrow subbasal raised section of cell br with extensive covering of microtrichia. Crossvein R- M beyond middle of cell dm. Costal band complete; deep, extending to vein R4+5 before wing apex; apically expanded into a large spot, reaching below vein M, and starts before end of vein R2+3. Anal streak present (colour extending beyond cell bcu). Cells bc and c slightly coloured (almost as dark as costal band). Without any crossbanding. Remainder of wing with a brownish tint, darkening posteriorly. Legs (fig. 43). Femora bicoloured (pale basally and red-brown in apical two-thirds to three quarters, dorsally; more extensively redbrown ventrally). Abdomen (fig. 40). Predominantly red-brown to fuscous, paler apically on tergite II and submedially on terga IV – V; terga I – V with a medial black stripe; shape as D. lounsburyii. Tergites I – V all fused. Male. Tergite III with pecten, dense microtrichia adjacent end A1+Cu2; hindtibia preapical pad apparently absent. Female. Unknown.
Etymology. Descriptive name for the brown (brunneus) colour over most of the wing (ala).
Material. Holotype male, CAMEROON: Mbalmayo, ix.2004, cue lure, M. Tindo (MRAC).
Remarks. Closest to D. fuscovittatus Graham, 1910, but differing from that species in the laterotergal xanthine being restricted to the katatergite and the longer narrower lateral vitta. Curiously, there is no indication of a raised tubercle near the apex of the male hind tibia, as normally seen in species with a pecten; however, there is flat area on which the setulae are finer than those on the rest of the tibia. The only other African species known to have a pecten but no hindtibia tubercle is D. notalaxus Munro, 1984.
description: Published as part of White, Ian M. & Goodger, Kim F. M., 2009, African Dacus (Diptera: Tephritidae); New Species and Data, with Particular Reference to the Tel Aviv University Collection, pp. 1-49 in Zootaxa 2127 on page 20, DOI: 10.5281/zenodo.274925