Tanypodinae, Skuse, 1889
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publication ID |
https://doi.org/ 10.1653/024.101.0404 |
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persistent identifier |
https://treatment.plazi.org/id/CE0A1828-0E5F-FE0C-FE33-F918F9A877ED |
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treatment provided by |
Felipe |
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scientific name |
Tanypodinae |
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Key to subfamilies (only subfamilies recorded in the study are included) 1. Antenna retractile into the head capsule, prementum with well-developed ligula ( Fig. 23 View Figs )........................... Tanypodinae View in CoL
1.— Antenna not retractile, ligula never developed......................................................................... 2
2. Ventral part of mentum laterally developed into ventromental plates of different shape, usually striate and never with beard........
...................................................................................................... Chironominae
2.— Ventromental plates, if developed, never striated and sometimes with beard beneath........................................ 3 3. Procerci obvious, minimum 3× as long as wide, usually much longer (8–10×). Premandibles absent ( Figs. 7–9 View Figs View Figs )......... Podonominae
3.— Procerci less than 3× as long as wide, usually much less or reduced. Premandibles present.................................... 4
4. Prementum with 3 dense brushes of hair-like processes. Usually with distinctive ‘collar’ (occipital margin of the head). Mentum either very wide, with 2 narrow medium teeth and> 8 lateral teeth of similar size ( Figs. 5–6 View Figs ), or with 1 very broad median tooth and 5 laterals ( Fig. 4 View Figs ). Head dark brown, body ‘fleshy’........................................................... Diamesinae (Heptagyiini)
4.— Prementum with lamellae rather than brushes. Mentum usually narrower, with at most 3 median teeth. Body of various coloration......................................................................................................... Orthocladiinae
Notes: The only Tanypodinae recorded in the studied streams was Pentaneura sp. ( Fig. 23 View Figs ). There was 1 specimen in the Surber samples of the Glacier stream 14, site 3 (farthest from the glacier terminus), and it is apparently very rare in the region.
Subfamily Chironominae
1. Antennae long, placed on pedestals ( Fig. 3 View Figs ).................................................................... Tanytarsini View in CoL
1.— Antenna shorter, growing directly from head ( Chironomini View in CoL , Pseudochironomini View in CoL )............................................. 2
2. Mentum with a single broad median tooth, ventromental plates slender, scarcely separated medially. Anal tubules elongate, manifold exceeding the length of parapods ( Fig. 2 View Figs )......................................................................... Manoa View in CoL
2.— Mentum with paired median teeth, first laterals shorter than median and second lateral teeth, ventromental plates widely separated. Anal tubules shorter than parapods........................................................................ Polypedilum View in CoL
Notes: The only Tanytarsini View in CoL collected was 1 specimen of Tanytarsus sp. ( Fig. 3 View Figs ) in stream 14, site 3. One individual of Manoa sp. ( Pseudochironomini View in CoL ) was recorded in Glacier stream 15, site 3. Both taxa are particularly rare.
Subfamily Diamesinae
1. Mentum with a very broad middle tooth and 5 lateral teeth, occipital margin moderately developed (in the fourth instar larva) ( Fig. 4 View Figs )............................................................................................................ Limaya View in CoL
1.— Mentum with 2 slightly smaller but non-recessed median teeth and more than 8 pairs of lateral teeth........................... 2
2. Occipital margin very strong, dark brown to black, close to 30% of the head ( Fig. 5 View Figs ).......................... Paraheptagyia sp. A
2.— Occipital margin narrow, dark brown ( Fig. 6 View Figs )........................................................... Paraheptagyia sp. B
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