Cordilura nubecula Sasakawa, 1986

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 : 477

Cordilura nubecula Sasakawa, 1986

[Japanese name: Higenaga-hitoten-funbae]

( Figs 15, 16 )

Cordilura nubecula Sasakawa, 1986 . Type locality: Utsukushigahara, Nagano Pref., Honshu, Japan (OMNH transferred from the Kyoto Prefectual University) ( Matsumoto and Sasakawa, 2006).

Cordilura nubecula: Ozerov & Krivosheina, 2012b .

Type material examined. Holotype: ♀ ( OMNH), Utsukushigahara, Nagano Pref., Honshu , 21. vii. 1968, T. Okadome.

Additional material examined. [Hokkaido] 1 ♀, Shihoro, 12. vi. 1990, leg. M. Iwasa. 1 ♀, Mt. Tomuraushi , Shintoku, 28. vii. 1981, leg. M. Iwasa.

Diagnosis. C. nubecula Sasakawa ( Fig. 15 ) can be recognized by shining body, yellow thoracic sclerites except for anepimeron, an apical dark spot on wing, yellow legs, and male surstylus which is apically bifurcated into anterior and posterior lobes. Scutum normally black, but in the pale form a pair of longitudinal dark brown stripes present on yellow ground color ( Sasakawa, 1986).

Length. Body, 4.7 mm in male ( Sasakawa, 1986), 6.2–8.0 mm in females; wing,

5.0– 6.3 mm in females.

Distribution. Japan (Hokkaido, Honshu); Russia (Khabarovskii Krai) ( Ozerov

& Krivosheina, 2012b).

Remarks. Male terminalia was originally described by Sasakawa (1986), and redescribed and figured by Ozerov & Krivosheina (2012b) in detail. This species resembles C. albipes (Fallén) and C. cuspidata Sasakawa , but differs from them by the characteristics as mentioned above.

Figures

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