Sympotthastia Pagast 1947
Authors/Creators
- 1. Hubei Key Laboratory of Economic Forest Germplasm Improvement and Resources Comprehensive Utilization, College of Biology and Agricultural Resources, Huanggang Normal University, Huanggang City, Hubei 438000, P. R. China
Description
Key to known species for adult males* of Sympotthastia worldwide (based on Liu et al. 2016)
1. Anal point absent..................................................................................... 2
- Anal point present..................................................................................... 4
2. Anal lobe of wing reduced, megaseta absent (Liu et al. 2016: Figs. 10–15)........... S. wuyiensis Liu, Ferrington & Wang
- Anal lobe of wing well developed, megaseta present......................................................... 3
3. Phallapodeme curved, S-shaped; gonostylus gradually expanded anteriorly (Ghaderi et al. 2024: Figs. A–E).............................................................................. S. golalae Ghaderi, Namayandeh & Karimian
- Phallapodeme boot-shaped, distal end extending downwards to the middle of gonocoxite; gonostylus widest in the middle and narrower towards the apex........................................................... S. annularis Fu, sp. nov.
4. Anal point sclerotized, narrow, long and slender............................................................. 5
- Anal point tubercle-like; apex of tubercle with or without strong setae........................................... 9
5. Aedeagal lobe distally expanded, reniform or knob-like....................................................... 6
- Aedeagal lobe not distally expanded, sigmoid or straight...................................................... 8
6. Median volsella bare, apical margin finely serrated (Tuiskunen 1986: Figs. 2–3)................... S. huldeni Tuiskunen
- Median volsella spiniferous............................................................................. 7
7. AR 3.38–4.26; prealars 14; aedeagal lobe distally knob-like (Makarchenko 1994: Figs. 10–13)..... S. takatensis (Tokunaga)
- AR 2.90–3.10; prealars 23–31; aedeagal lobe distal reniform (Makarchenko 1985: Fig. 228)...... S. repentina Makarchenko
8. Scutellum with 48 setae; prealars 15; aedeagal lobe distally sigmoid (Doughman 1985: Figs. 1–3)..... S. diastena (Sublette)
- Scutellum with 24 setae; prealars 4; aedeagal lobe distally straight (Doughman 1985: Fig. 13; Makarchenko 1985: Fig. 227)..................................................................................... S. fulva (Johannsen)
9. Aedeagal lobe very broad, converging to point distally; phallapodeme short, not extending beyond aedeagal lobe (Makarchenko 1994: Figs. 1 –4)............................................................... S. gemmaformis Makarchenko
- Aedeagal lobe not as above; phallapodeme long, extending much beyond aedeagal lobe............................ 10
10. Anal point tubercle-like, without strong setae (Serra-Tosio 1968: Fig. 2).............................. S. zavreli Pagast
- Anal point reduced to a simple seta or consists of two strong setae arising at the tip................................ 11
11. AR higher, ca. 3.0; clypeus with 11 setae (Doughman 1985: Figs. 11–12)...................... S. macrocera Serra-Tosio
- AR lower, ca. 1.60–1.75; clypeus with 4–5 setae (Doughman 1985: Figs. 7–10).................. S. spinifera Serra-Tosio
* S. bicolor (Tokunaga, 1937) is not included in this key because the species description is based on the adult female only.
Notes
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Linked records
Additional details
Identifiers
Biodiversity
- Scientific name authorship
- Pagast
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Order
- Diptera
- Family
- Chironomidae
- Genus
- Sympotthastia
- Taxon rank
- genus
- Taxonomic concept label
- Sympotthastia Pagast, 1947 sec. Fang, Shangguan & Fu, 2025
References
- Liu, W., Ferrington, L. C. Jr. & Wang, X. (2016) Sympotthastia wuyiensis sp. n. from China, with description of the immature stages of S. takatensis (Tokunaga) (Diptera, Chironomidae). Zootaxa, 4126 (3), 427-434. https://doi.org/10.11646/zootaxa.4126.3.7
- Ghaderi, E., Namayandeh, A., Ibrahimi, H., Mohammadi, H., Karimian, E., Mansouri, A. & Molodi, F. (2024) Two new species of Diamesinae (Diptera: Chironomidae) from the Central Iranian Range and Elburz Mountains (Iran), with new faunistic records for the subfamily. Zootaxa, 5537 (1), 76-94. https://doi.org/10.11646/zootaxa.5537.1.4
- Tuiskunen, J. (1986) A new northern species of Sympotthastia (Diptera, Chironomidae, Diamesinae). Annales Entomologici Fennici, 52, 78-80.
- Makarchenko, E. A. (1994) Chironomids of the subfamily Diamesinae (Diptera, Chironomidae) from Japan. II. Sympotthastia Pagast, 1947. Bulletin of the National Science Museum, Tokyo, Series A (Zoology), 20 (1), 51-58.
- Makarchenko, E. A. (1985) Khironomidy Dal'nego Vostoka SSSR. Podsemeistva Podonominae, Diamesinae i Prodiamesinae (Diptera, Chironomidae) [Chironomids of the Far East of the USSR. Subfamilies Podonominae, Diamesinae and Prodiamesinae (Diptera, Chironomidae)]. Dal'nevostochnyi Nauchnyi Tsentr Akademii Nauk SSSR, Vladivostok, 200 pp.
- Doughman, J. S. (1985) Sympotthastia Pagast (Diptera: Chironomidae), an update based on larvae from North Carolina, S. diastena (Sublette) comb. n., and other Nearctic species. Brimleyana, 11, 39-53.
- Serra-Tosio, B. (1968) Taxonomie et ecologie des Diamesa du groupe latitarsis (Diptera, Chironomidae). Traveaux du Laboraloire d'Hydrobiologie et de Pisciculture de l'Universite de Grenoble, 57 - 58, 65-91.
- Tokunaga, M. (1937) Chironomidae from Japan (Diptera), IX. Tanypodinae and Diamesinae. Philippine Journal of Science, 62 (1), 21-65.