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Trirhithrum albonigrum (Enderlein, 1911)

Trirhithrum albonigrum (Enderlein)
Ceratitis albonigra Enderlein, 1911: 410.
Wing length=7.2-8.0 mm; Aculeus length=3.44 mm.

Male
Head:
Arista plumose. Three pairs frontal setae. Face variable from dark (possibly just discoloured) to pale (lectotype is bright cream coloured). Thorax:
Postpronotal lobe entirely dark. Scutum without silvery-white microtrichose areas. Scutellum disk white; margin dark with three dark patches. Anepisternum entirely dark; usually with two setae (rarely one). Anatergite without a bright silvery spot. Wing:
Pattern distinct. Subbasal and discal crossbands fused throughout; cell c dark. Discal crossband distally aligned with base of pterostigma; R-M crossvein well distal to edge of discal crossband. Subapical crossband joined to discal crossband; base deep, partly in cell dm. Posterior apical crossband complete, extending from vein C to wing margin, or with a break in cell r ¢¡¤£ . Anal lobe largely dark, except for trace of hyaline margin. No bulla. Legs:
Femora dark. Abdomen:
With distinct grey/silvery microtrichose bands (distinct on tergite IV, less so on tergite II).
Female
Terminalia:
Aculeus very long and pointed, with a slight medial constriction; spermatheca long and recurved (apparently similar to T. demeyeri).
(Description after White et al., 2003)
See description of Trirhithrum albonigrum (Enderlein, 1911) in source PDF.

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Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© Marc de Meyer, MRAC

Source: Afrotropical Fruitfly Project

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