Blepharella, Macquart, 1851

Shima, Hiroshi & Tachi, Takuji, 2019, The genus Blepharella Macquart (Diptera: Tachinidae) in Japan, with notes on the Oriental species B. lateralis Macquart, Zootaxa 4615 (1), pp. 131-144 : 141

Key to species of Blepharella from Japan and the Oriental Region

1. Prosternum bare; facial ridge with strong setae on lower 1/2 or more; occiput without black setulae behind postocular row; male outer vertical seta developed; male claws and pulvilli shorter than 5th tarsomeres................... lateralis Macquart

- Prosternum haired on both sides; facial ridge with rather strong setae at most on lower 1/3–2/5; occiput usually with black setulae, sometimes lacking distinct row of black setulae on upper portion; male outer vertical seta undeveloped; male claws and pulvilli longer than 5th tarsomeres........................................................................ 2

2. Scutellum broadly black, sometimes apical portion narrowly dark brown; male thoracic dorsum broadly black in ground color, with thin grayish or yellowish-white pruinosity on postpronotal lobe and anterior portion of presutural area of scutum, dorsal longitudinal vittae only distinct on anterior portion of presutural area; vertex at most 0.24 of head width in male.......... 3

- Scutellum broadly reddish-yellow in apical 1/2; male thoracic dorsum with dense pale yellowish gray-white pruinosity, with 4–5 distinct longitudinal vittae; vertex wide, 0.27–0.29 of head width in male....................... grisescens sp. nov.

3. Palpus brown or dark reddish-brown; head with grayish or grayish-white pruinosity; male cerci nearly straight in lateral view, apex truncated......................................................................... yaeyamana sp. nov.

- Palpus pale reddish-yellow; head with dense yellowish or golden-yellowish pruinosity on parafrontal and upper parafacial; male cerci not as above................................................................................. 4

4. Antenna with 1st flagellomere 4.0–4.5 times as long as pedicel in male, 3.8–4.0 times as long as pedicel in female; venter of male 4th abdominal tergite with short, fine, dense hairs, not forming distinct sexual hair patch; male cerci curved dorsally at apex in lateral view.......................................................................... nigra Mesnil

- First flagellomere of antenna about 3.0 times as long as pedicel in both sexes; venter of male 4th abdominal tergite with sexual patch of rather long, dense hairs; male cerci nearly straight in lateral view, apex rounded.............. bomolocha sp. nov.