Prosimulium Roubaud 1906
Creators: name: Kim, Sam-Kyu
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Simuliidae
Prosimulium

description: Key to immatures of Korean species of ProsimuliumandTwinnia(with reference to Japanese species)
1. Larva with labral fan absent······················· 2 (Twinnia)
Larva with labral fan well developed······························· ··············································· 4 (Prosimulium, Simulium)
2. Antenna with basal segment dilated (swollen) ············· ······································································ T. cannibora
Antenna with basal segment not dilated ························ 3
3. Each abdominal segment with two large dorsolateral dark spots ·················································· T. subtibbelesi
Each abdominal segment without dark spots··················· ····································································· T. japonensis
4. Larva with postgenal cleft truncated; prothoracic proleg with lateral sclerite broad and vertical portion well developed; pupa with cocoon amorphous························ ································································ 5 (Prosimulium)
Larva with postgenal cleft pointed or round, not truncated; prothoracic proleg with lateral sclerite narrow or broad but vertical portion not well developed; pupa with cocoon shoe, boot, or slipper shaped ············· (Simulium)
5. Pupa with gill 16 filaments ·· 6 (hirtipes species-group)
Pupa with gill more than 16 filaments ····························· ················································ 8 (magnum species-group)
6. Dorsal trunk of gill strongly divergent from ventral trunk ··············································································· 7
Dorsal trunk of gill not divergent from ventral trunk ······ ······································································· P. kiotoense
7. Four pairs of gill filaments rising from ventral trunks with a short petiole; larval hypostoma with median tooth prominent ····················································· P. jezonicum
One of four pairs of gill filaments rising from ventral trunks sessile; larval hypostoma with median tooth as high as or lower than lateral tooth························· P. kanii
8. Larval antenna with basally swollen abruptly; gill with 38-40 filaments········································· P. apoina
Larval antenna gradually tapered toward apex; gill with various filaments ···························································· 9
9. Gill with 46-48 filemants ························· P. sarurense
Gill with at most 40 filaments······································ 10
10. Pupa with frons and dorsal surface of the thorax with distinct tubercles ·························································· 11
Pupa with frons and dorsal surface of the thorax without tubercles ···························································· P. kazukii
11. Larval hypostoma with median and lateral teeth equal in length; gill with 26-30 filaments ······················· ····································································· P. karibaense
Larval hyposotm with median tooth distinctly longer and higher than lateral tooth; gill with 22-25 filaments ·· ········································································ P. yezoense
description: Published as part of Kim, Sam-Kyu, 2020, Two new genera of black flies (Diptera: Simuliidae) of Korea, pp. 11-18 in Journal of Species Research 9 (1) on page 12, DOI: 10.12651/JSR.2020.9.1.011, http://zenodo.org/record/8120496