Polypedilum

Saether, Ole A., Andersen, Trond, Pinho, Luiz C. & Mendes, Humberto F., 2010, The problems with Polypedilum Kieffer (Diptera: Chironomidae), with the description of Probolum subgen. n., Zootaxa 2497, pp. 1-36 : 10-11

Polypedilum subgenus Tripedilum Kieffer

Tripedilum Kieffer, 1921a: 271 ; 1921c: 28, 47.

Polypedilum Kieffer, 1912 ; not Kieffer, 1913, (see below).

Type species

Polypedilum (Tripedilum) fuscipenne (Kieffer) Polypedilum fuscipenne Kieffer, 1921a: 98 . Tripedilum armatifrons Kieffer, 1921b: 47 . Polypedilum longiforceps Kieffer, 1921a: 98 . Microtendipes longiventris Kieffer, 1922: 15 .

Other included species

Polypedilum (Tripedilum) nubifer (Skuse)

Chironomus nubifer Skuse, 1889: 249 .

Chironomus (Prochironomus) triparticus Kieffer, 1910: 231 . Chironomus ceylanicus Kieffer, 1911: 136 .

Polypedilum pelostolum Kieffer, 1912: 41 .

Polypedilum pharao Kieffer, 1925: 274 .

Chironomus (Polypedilum) albiceps Johannsen, 1932: 515 . Polypedilum pruinosum Goetghebuer, 1934: 37 . Chironomus (Polypedilum) octoguttatum Tokunaga, 1936: 83 .

Polypedilum aberrans Chernovskii, 1949: 79 .

Chironomus daitobeceus Sasa et Suzuki, 2001: 64 . Polypedilum daitoneoum Sasa et Suzuki, 2001: 76 .? Polypedilum flavipes Kieffer, 1920: 91 .

Polypedilum (Tripedilum) lobiferum (Freeman)

Polypedilum lobiferum Freeman, 1954: 22 .

Polypedilum (Polypedilum) lobiferum Freeman ; Freeman 1958: 289.

Diagnostic characters. The male imagines of the subgenus differ from the males of other subgenera primarily by having distinct frontal tubercles and the projection of the superior volsella without any outer seta. The projection of the superior volsella is very long compared to the short base and the gonostylus is broad with a broad, blunt apex.

The pupa has unique well developed cone-shaped cephalic tubercles, numerous branches (> 20) in the thoracic horn, no pedes spurii A, a well developed comb on the caudolateral margin of segment VIII, and anal lobe with numerous taeniae (about 38–50) and no dorsal setae.

The larva has alternating Lauterborn organs, third antennal segment distinctly longer than fourth, antennal blade shorter than flagellum, mentum with first lateral teeth distinctly lower than second and median teeth and ventromental plates without posterior lobes and with median apices pointing towards each other.