Tritoxa ra

Harriot, 1942

Tritoxa ra is a of picture-winged fly in the Ulidiidae, one of seven recognized species in the Nearctic Tritoxa. The species was originally described by Harriot in 1942. Like other members of the genus, it possesses distinctive wing patterns that aid in identification. The species occurs in the United States.

Pronunciation

How to pronounce Tritoxa ra: /traɪˈtɒksə ræ/

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Identification

Tritoxa ra can be differentiated from other Tritoxa by its wing patterns, which are characteristic of the . For certain sympatric species, confident identification requires examination of male genitalia. The species was included in a taxonomic revision that provided a key to all seven recognized Tritoxa species.

Distribution

United States.

Similar Taxa

Tritoxa flexaBoth are Nearctic in the same with overlapping distribution; wing patterns and male genitalia are required for reliable differentiation.
Tritoxa cuneataSympatric congeneric ; examination of male genitalia may be necessary for confident identification where ranges overlap.
Tritoxa incurvaAnother Nearctic congeneric that may occur in overlapping areas; wing pattern differences distinguish the species.

More Details

Taxonomic History

Tritoxa ra was originally described by Harriot in 1942. It was included in a 2021 taxonomic revision of the Tritoxa that recognized seven , including two newly described species (T. californica and T. decipiens). One additional species from California and Nevada based on female specimens remains undescribed.