Dacus (Ambitidacus) luteovittatus, White, Ian M. & Goodger, Kim F. M., 2009

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, Zootaxa 2127, pp. 1-49 : 7

Dacus (Ambitidacus) luteovittatus sp.n.

Figures 1 – 6 .

Diagnosis. As D. elegans Munro, 1984 , except: Thorax. Postpronotal lobe bicoloured; notopleural callus yellow (fig. 1); narrower anepisternal stripe (not reaching postpronotal lobe) (fig. 4). Thoracic setae. Anterior notopleural seta present. Wing. Without any crossbanding (fig. 6). Legs. Mid- and hindfemora bicoloured (fig. 5). Abdomen. Predominantly black (fig. 2).

Description. Size. Medium, wing length, 6.2 mm. Head (fig. 3). Pedicel+first flagellomere not longer than ptilinal suture. Face, antennal furrow without a dark spot. Frons, frontal and orbital setae absent. Thorax (figs 1, 4). Scutum predominantly black, except for narrow orange area around medial vitta; postpronotal lobe bicoloured (yellow postero-laterally; black antero-mesally); notopleural callus yellow; notopleural xanthine absent; lateral postsutural vitta apparently absent (there is a trace of a very narrow and very short dark brown diagonal stripe posterior to the notopleural suture); medial postsutural vittae present. Scutellum without any dark patterning (except for deep basal dark margin). Anepisternum with a stripe from notopleural callus to katepisternum; extended ventrally onto katepisternum, anteriorly to level of anterior notopleural seta. Laterotergal xanthine confined to katatergite. Thoracic setae. Anterior notopleural seta present; anterior supra-alar seta absent. Wing (fig. 6). Basal cells bc and c without a covering of microtrichia; cell bm without microtrichia. Narrow subbasal raised section of cell br with extensive covering of microtrichia; partly bare in apical half. Crossvein R-M beyond middle of cell dm. Costal band complete; shallow, not extending below vein R2+3 before wing apex; barely expanded at apex; extended around margin to vein M. Anal streak present (colour extending beyond cell bcu). Cells bc and c hyaline. Without any crossbanding. Legs (fig. 5). Forefemur pale; mid- and hindfemora bicoloured (pale basally, red-brown in apical quarter). Abdomen (fig. 2). Predominantly black, reddish ceromata; shape similar to D. elegans but slightly more elongate. Tergites I – V all fused. Male. Tergite III with pecten, dense microtrichia adjacent end A1+Cu2, and hindtibia preapical pad. Female. Unknown.

Etymology. Descriptive name for yellow (luteus) medial vitta.

Material. Holotype male, CAMEROON: Bamenda, 20km S., 1800m., 22.xi.1987, A. Freidberg ( TAU).

Remarks. Unlike D. elegans this species has an anterior notopleural seta, as do all other species assigned to this subgenus; it shares other species group characters with D. elegans and is therefore tentatively assigned here.

Figures

FIGURES 1 – 6. Dacus (Ambitidacus) luteovittatus sp. n., holotype male. 1. Mesonotum, dorsal view. 2. Abdomen, dorsal view. 3. Head, anterior view. 4. Thorax, left lateral view. 5. Legs, left lateral view; fore, mid, hind. 6. Wing, dorsal view. Scale lines = 1 mm.