Scathophagidae
Creators: name: Iwasa, Mitsuhiro
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Scathophagidae

description: Key to the genera of Japanese Scathophagidae (males and females)
1. Fore femur and tibia ventrally with remarkable rows of spine-like setae, longer than diameter of femur and tibia (Hironaga & Suwa 2005)........................................................................ Norellisoma Wahlgren
- Fore femur and tibia without ventral rows of long spine-like setae............................................... 2
2. Palpus short and small, less than length of proboscis (Hering 1955)............................. Parallelomma Becker
- Palpus long and large, longer than length of proboscis........................................................ 3
3. Palpus with strong subapical setae about as long as or longer than palpus (see Iwasa (2020, fig. 7))....... Cordilura Fallén
- Palpus without very strong subapical setae (Fig. 2)........................................................... 4
4. Katepisternum with two or three setae..................................................................... 5
- Katepisternum with one seta (Fig. 44)..................................................................... 6
5. Katepisternum with two setae........................................................... Chaetosa Coquillett
- Katepisternum with three setae (Fig. 16)................................................... Cleigastra Macquart
6. Fore tibia ventrally without rows of long spine-like setae but with 1 or more rows of short black spines (Fig. 45).......... 7
- Fore tibia ventrally without rows of both long spine-like setae and short black spines................................ 8
7. Apex of fore tibia with a stout ventral seta (Suwa 1986)..................................... Acanthocnema Becker
- Apex of fore tibia without stout ventral seta............................................... Microprosopa Becker
8. Anepisternum, katepisternum, and anepimeron wholly covered with dense, long erect fine hairs....................... 9
- Anepisternum, katepisternum, and anepimeron covered with sparse fine hairs or bare.............................. 10
9. Palpus distinctly spatulate (Fig. 54)....................................................... Spaziphora Rondani
- Palpus filiform or clavate.............................................................. Scathophaga Meigen
10. Arista plumose (Fig. 30) or short-haired (Figs 34, 40); body shiny yellow........................................ 11
- Arista bare (Fig. 53) or pubescent (Fig. 7); body shiny black, grey microtrichose or dusted.......................... 12
11. Scutellum with pair of strong setae (Fig. 28).............................................. Megaphthalma Becker
- Scutellum with two pairs of strong setae............................................ Megaphthalmoides Ringdahl
12. Arista relatively short, thick and slightly longer than postpedicel; postpedicel enlarged in males (Fig. 2)..................................................................................................... Acerocnema Becker
- Arista rather thin, and distinctly longer than postpedicel; postpedicel not more enlarged in both sex (Fig. 22)................................................................................................ Gimnomera Rondani
description: Published as part of Iwasa, Mitsuhiro, 2021, Three new species and six new records of Scathophagidae (Diptera) from Japan with a key to the Japanese genera, pp. 531-553 in Zootaxa 4981 (3) on page 551, DOI: 10.11646/zootaxa.4981.3.6, http://zenodo.org/record/4921413