Microprosopa pallidicauda ( Zetterstedt, 1838 )

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 : 548-549

Microprosopa pallidicauda ( Zetterstedt, 1838)

[Japanese name: Haiiro-hoso-funbae]

( Figs 49–51 )

Cordylura pallidicauda Zetterstedt, 1838: 733 . Type-locality: “Lycksele Lapponiae Umensis … Juckasjervi Lapponiae Tornensis… (Lapponia Suecica et sylvatica)” [ Sweden].

Cordylura melanura Zetterstedt, 1838: 731 . Type-locality: “Kengis Lapponiae Tornensis… Stensele, Umenaes, Wilhelmina et Asele, Lapponia Umensis” [ Sweden].

Material examined. Honshu, 9 ♂, Mt. Norikura , Gifu Pref., 4. viii. 1952, leg. I. Hattori ; 2 ♀, same locality and date, leg. S. Kato.

Diagnosis. This species can be recognized by the following characteristics: frontal vitta reddish yellow, face and parafacial black to pale yellow; gena and postgena pale yellow; palpi spatulate and white; postpedicel rounded apically, about 2 times as long as wide; thorax black with grey dusting; legs yellow, only mid and hind coxae black; fore femur with a row of posterodorsal setae, with numerous hairs anteriorly and ventrally; abdominal tergites black and greyish dusted; posterior lobes on male sternite V basally wide, with one row of spinules on inside margin ( Fig. 49 ); male surstyli simple and slender ( Figs 50, 51 ).

Body length (♂ ♀). 6.0–6.2 mm.

Distribution. Europe, Russia (European territory, West and East Siberia, Far East) ( Ozerov, 2017) and Japan (Honshu).

Remarks. This species is easily distinguished from M. haemorrhoidalis Meigen by having posterior lobes on sternite V which are basally stout, and by the shape of surstyli.

Figures

FIGURES 49–51. Microprosopa pallidicauda (Zetterstedt). 49, Male sternite V, ventral view; 50, Male terminalia, left lateral view; 51, Male terminalia, posterior view.