Dacus (Didacus) frontalis Becker

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 : 13

Dacus (Didacus) frontalis Becker ; aberrant form

Dacus frontalis Becker, 1922: 74

Other synonyms: White (2006: 83)

Material. SUDAN: 1 female, W. Halfa Dist., Ashkeit, 8.x.1962, S. Panelius ( TAU)

Remarks. This species, in common with other members of sg. Didacus lacks a medial vitta. However, this specimen has a narrow yellow medial stripe along the midline of the postscutum. It was initially thought that it must be a misidentified D. siliqualactis Munro, 1939 a, a species with a medial vitta often confused with D. frontalis by earlier authors. This specimen has a velvet raised area on the frons, and only the midfemur bicoloured (others entirely pale), which are typical features of D. frontalis and clearly separate it from D. siliqualactis . This is therefore assumed to be D. frontalis which has a pale surface mid-line, typical of many specimens, unusually bright and yellowish and therefore liable to be misinterpreted as a medial vitta.