Cordilura Fallén, 1810

Iwasa, Mtsuhiro, 2020, Contribution to the knowledge of the genus Cordilura Fallén (Diptera, Scathophagidae) from Japan, with descriptions of three new species, Zootaxa 4748 (3), pp. 471-484 : 472

Genus Cordilura Fallén, 1810

[Japanese name: Higenaga-funbae-zoku]

Cordilura Fallén, 1810: 15 . Type-species: Musca pubera Linnaeus, 1758 (mon., misident.) [= Cordylura rufipes Meigen, 1826 ], designated by Vockeroth (1965).

Cordylura: Fallén (1810: 6) , Meigen (1826: 229). Incorrect subsequent spelling.

Gorodkov (1986) and Jong (2000) recognized three subgenera ( Cordilura Fallén, 1810 , Cordilurina James, 1955; and Scoliaphleps Becker, 1894 ) in the Palaearctic Cordilura , but these were not accepted by Šifner (2008) and Ozerov & Krivosheina (2014). In the present paper I follow Šifner (2008) and Ozerov & Krivosheina (2014), therefore, this genus is defined by the following combination of characteristics.

Diagnosis. Head yellow to black; 3–4 fr, 2–3 or (proclinate, lateroclinate, lateroreclinate) ( Fig. 16 ); 1 oc, 1 poc, 1 vte, 1 vti; postpedicel 2–3 times as long as wide ( Figs 6 , 18 ); arista plumose or short-haired; vibrissal angle with 1 vibrissae and 1 subvibrissa; palpus with 1 strong subapical seta as long as or longer than palpus ( Fig. 7 ); proepisternum covered by hairs at middle or on anterior part; 2 pprn, 2 npl; 1 prest ial; 2+3 dc, 2 sa, 2 pa, 1 dsc (strong), 1 apsc (generally small), 1–2 prepst, 1 prepm; 1–5 anepst, 1 kepst; vein A 1 +CuA 2 extending to wing margin or abruptly ending well before wing margin; fore femur and tibia without ventral row of long spinous setae; male sternite V prominently bilobate posteriorly ( Fig. 2 ); male surstylus slender or stout, or often bifurcate into anterior and posterior lobes apically ( Figs 3, 4 ).

Figures

FIGURES 15–16. Cordilura nubecula Sasakawa, specimen from Hokkaido. 15, female adult, left lateral view. 16, female head, dorsal view.

FIGURES 5–9. Cordilura cuspidata Sasakawa, specimen from Hokkaido. 5, male adult, left lateral vew; 6, male postpedicel and pedicel, left lateral view; 7, male palpus, left lateral view; 8, male terminalia, left lateral view; 9, male terminalia, posterior view.

FIGURES 17–20. Cordilura remmi Elberg, specimen from Hokkaido. 17, male adult, lateral view; 18, postpedicel and pedicel, left lateral view; 19, male terminalia, lateral view; 20, male terminalia, posterior view.

FIGURES 1–4. Cordilura albipes (Fallén), specimen from Kyushu. 1, male adult, dorsal view; 2, male sternite V; 3, male terminalia, left lateral view; 4, male terminalia, posterior view.