Fittkau, 1957
Body
Medium sized larvae with a length up to 7 mm. Living larvae are white or yellowish. Fringe of swimming hairs absent (Wiederholm, 1983; Moller Pillot, 1984a).
Head
The head length is 0.7 - 0.9 mm with a cephalic index of 55 - 65 (Moller Pillot, 1984a).
Antenna
The antennal segments are all yellow and the antennal ratio is 3.3 - 6. The ring organ is situated at 0.6 - 0.7 of the height of the first segment. The second segment is normal and lacks a tuning fork (Wiederholm, 1983; Moller Pillot, 1984a).
Mentum
Dorsomentum without teeth Con mentum.
Ligula and paraligula
Ligula with 5 brown teeth in a concave row. Paraligula with a large outer and a smaller inner tooth Con ligula paraligula.
Mandible
The mandible has a small basal tooth Con mandible.
Maxilla
The maxilla is short with an undivided basal segment. the b-seta has 3 segments Con b-seta maxilla.
Anal tubules
4 anal tubules which are longer than wide.
Posterior parapods
All claws are yellow Con post parapod. No teeth on their inner margin.
Differential characteristics
Conchapelopia is closely related to Arctopelopia, Rheopelopia and Thienemannimyia. Their common characters are:
- dorsomental teeth absent
- concave ligula Con ligula paraligula.
- small basal tooth of mandible Con mandible.
Conchapelopia differs from the other genera by:
a higher cephalic index (55-65 vs 65-75 in Arctopelopia), ring organ higher (0.6 - 0.7) than in Arctopelopia (0.4 - 0.6). Antenna ratio lower (3 - 4) than in Arctopelopia and Thienemannimyia (4 - 6) and 3 segmented b-seta on maxilla Con b-seta maxilla (2 in Arctopelopia and Thienemannimyia Arctopel maxilla b-seta), no brown claw on posterior parapod (present in Rheopelopia Rhe post. parapod).
In lakes and streams rarely in rivers. Rheopelopia is confined to large rivers.
Diversity
European species: 6
Treated species: 0