Cordilura cuspidata 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 : 473-475

Cordilura cuspidata Sasakawa, 1986

[Japanese name: Higenaga-kiashi-funbae]

( Figs 5–9 )

Cordilura (Cordilurina) cuspidata Sasakawa, 1986: 40 . Type locality: Hachimantai, Akita Pref., Japan (OMNH transferred from the Kyoto Prefectural University) ( Matsumoto and Sasakawa, 2006).

Cordilura cuspidata: Šifner, 2008 .

Type material examined. Holotype ♀ ( OMNH), Hachimantai, Akita Pref., Honshu, 16–17. vii. 1968, T. Okadome . Additional material examined. [Hokkaido] 1♂, Iwanai Riv., Obihiro, 19. ix. 1995, leg. M. Iwasa; [Honshu] 1 ♂, Tanigawa , Gunma Pref. 30. v. 1960, leg. T. Okada ; 1 ♂, Tokusawa (1.500 m), Azumi-mura , Nagano Pref. 1. viii. 1989, leg. S. Shinonaga.

Diagnosis. C. cuspidata Sasakawa ( Fig. 5 ) can be recognized by shining body, yellow thoracic sclerites except for anepimeron, 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, 7.4–7.8 mm; wing, 5.7–6.5 mm.

Distribution. Japan (Hokkaido and Honshu).

Remarks. Male terminalia of this species was described and figured in original description ( Sasakawa, 1986). This species is similar to C. nubecula Sasakawa, 1986 , but differs from it by having the following characteristics: frons wholly or posteriorly dark brown to black; wing without a dark spot apically ( Fig. 5 ); posterior lobe of surstylus sparsely setigerous and ventrally not projected ( Figs 8, 9 ).

Figures

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.