Risa (Achaetorisa) brevicornis Papp, 2023

Mathis, Wayne N. & Zatwarnicki, Tadeusz, 2023, Phylogeny and Taxonomy of the Risa Genus-group (Diptera: Ephydridae), with Description of a New Genus from Australia, Records of the Australian Museum (Rec. Aust. Mus.) 75 (1), pp. 1-23 : 14

Risa (Achaetorisa) brevicornis Papp comb. nov.

Figs 24 , 35

Achaetorisa brevicornis Papp, 1980: 421 [ Morocco. Marrakech : Ouirgane (31°11.7'N 08°4.4'W); HT ♂, USNM]; 1984: 178 [Palearctic catalog].

Achaetorisa salsolae Mathis & Zatwarnicki, 2017: 646 [ United Arab Emirates. Ajman (N; 25°25.7'N 55°30.1'E; salt marsh); HT].

Distribution. Palearctic: Israel / Jordan, Morocco, Spain.

Natural history. This species is associated with Halogeton sativus (L.) Moq. ( Amaranthaceae ).

Figures

Figures 20–25. Line drawing of frons and associated setae, dorsal view. (20) Notorisa mcalpinei sp. nov. (21) Risa longirostris Becker. (22) R. asiatica Ozerov. (23–25) Line drawing of head, lateral view. (23) R. longirostris Becker. (24) R. brevicornis Papp. (25) R. longicornuta Papp.

Figures 34–37. Line drawing and photographs of Risa. (34) Terminal female abdominal segments of R. brevirostris sp. nov., anterior view. (35) Habitus of R. brevicornis (Papp), antero-oblique view. (36) Head of R. brevirostris sp. nov., lateral view. (37) Habitus of R. salsolae (Mathis & Zatwarnicki), antero-oblique view. Scale bars = 0.1 mm (34), = 0.2 mm (35, 37).