Megaphthalma pallida ( Fallén, 1819 )

Iwasa, Mitsuhiro, 2021, Three new species and six new records of Scathophagidae (Diptera) from Japan with a key to the Japanese genera, Zootaxa 4981 (3), pp. 531-553 : 541-542

Megaphthalma pallida ( Fallén, 1819)

[Japanese name: Seobi-kiiro-funbae]

( Figs 28–29 )

Cordylura pallida Fallén, 1819: 8 . Type-locality: “Westrogothis… Scania ” [ Sweden].

Material examined. Hokkaido, 2 ♀, Iwanai Riv., Obihiro, Tokachi, 19. ix. 1995, leg. M. Iwasa. Diagnosis. This species is recognized by the following characteristics: frons, face, parafacial, and gena yellow ; prescutum and scutum dark brown; postpronotum and thoracic pleura yellow; scutellum yellow with a pair of apical setae ( Fig. 28 ); legs wholly yellow; abdominal tergites wholly yellow with narrow black line on each posterior margin ( Fig. 29 ).

Body length (♀). 5.5–6.0 mm.

Distribution. Europe, Japan (Hokkaido), Russia (the European part, Siberia, the Far East) ( Bagachanova et al., 2016), North America. New to Japan.

Remarks. Available specimens of this species are females, but as a result of my examination of specimens of M. pallida preserved in the Museum National d’Histoire naturelle (Paris), the characteristics agreed with those of female M. pallida .

Figures

FIGURES 28–29. Megaphthalma pallida (Fallén). 28, Scutellum, dorsal view view; 29, Female abdomen, dorsal view.