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| Character | Sex | Range of variation |
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| Profile shape of facial tubercle | ♂, ♀ | In lateral view, facial tubercle is rounded and well differentiated from the mouth edge, but sometimes both are merged or the facial tubercle is flatter and less protruding |
| Arista length | ♂, ♀ | 2.5-3× longer than the basoflagellomere |
| Hairs of arista | ♂, ♀ | As long as the maximum diameter of the arista or longer |
| Basoflagellomere shape | ♂ | From round to 2× longer than broad, with intermediate oval forms, with more or less angular edges |
| Basoflagellomere colour | ♂ | From orange to black. When black, then usually reddish basoventrally |
| ♀ | Brilliant or dull orange, never with dark colours |
| Paraface width | ♂, ♀ | From very narrow to 0.5× longer than basoflagellomere width |
| Mesonotum hair colour | ♂, ♀ | Pale and dark hairs intermixed, generally pale hairs clearly dominate over the black hairs, but sometimes dark hairs are more abundant than pale |
| Scutellum colour | ♀ | From wholly black to (more usually) partly pale. The pale part may extend over up to three quarters of the posterior scutellum surface |
| Number of posterodorsal hairs of anterior anepisternum | ♂, ♀ | Variable number of long hairs, from one to many hairs covering the posterodorsal area of the anterior anepisternum |
| Protibia colour | ♂, ♀ | With more pale parts than meso- and metatibiae, more accentuated in females than in males. From black in a central ring over less than half of the protibia to lacking dark pigmentation (in male, very rare character state), or with presence of a dark spot of variable size and location (dorsally or ventrally) (more usual in males than in females) |
| Mesotibia colour | ♀ | With a black ring of variable size, with a dark spot or completely yellow |
| Metatibia colour | ♀ | With a black ring of variable size, with a dark spot or completely yellow |
| Leg colour | ♂, ♀ | Usually yellow, but sometimes with reddish pigmentation |
| Colour of leg hairs | ♂, ♀ | Both pale and dark, but variable in the proportion, pale hairs always dominating over dark hairs |
| Surstylus shape | ♂ | Sometimes with blunter edges, but very slightly and never as accentuated as in the outlier genitalia reported in the text |
| Extension of the surstylus lamella | ♂ | The lamella may extend from 60 to 70% of the surstylus length |
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