(Staeger, 1839)
Subgenus Glyptotendipes
Body
Large larvae up to 15 mm long. Living larvae red to dark red. No lateral tubules and one pair of ventral tubules on the 11th segment longer than half the segment height Glyp 2 ventr tubules (Wiederholm, 1983; Vallenduuk, 1999).
Head
Length 1050 - 1250 µm. The head capsule is dull due to the intensive fine granulation. The head is brown with a well defined pale spot around the eyes Gl. barbipes head pict 8. Anterior margin of frontal apotome concave. Labral sclerites 1 and 2 both rectangular (Vallenduuk, 1999).
Antenna
The antenna consists of 5 segments. The first segment is 132 - 160 µm long. The blade is shorter than the flagellum. Lauterborn organs distally on the second segment (Wiederholm, 1983; Vallenduuk, 1999).
Mentum
The mentum has one median tooth and 6 pairs of lateral teeth. Fourth lateral tooth is reduced Glyp mentum. The distance between the ventromental plates at least 1.5 x the width of the median tooth (Vallenduuk, 1999)
Labrum
The pecten epipharyngis with many unequal distal teeth and small points on the surface. The premandible has two apical teeth.
Mandible
The mandible with a pale dorsal tooth, apical tooth and 3 inner teeth. The pecten mandibularis is present and seta interna with 4 toothed and plumose branches (Wiederholm, 1983; Vallenduuk, 1999).
Differential characteristics
The combination of dull headcapsule, simpel mid-mental tooth and 6 pairs of lateral teeth Glyp mentum are distinctive for subgenus Glyptotendipes. Subgenus Caulochironomus can be identified by shining headcapsule, frontoclypeal apotome with concave anterior margin, labral sclerites 1 and 2 present Caulochir frontoclypeus and three inner mandibular teeth. In subgenus Trichotendipes the combination of a subapical pit on the frontal apotome and clypeus separate from frontal apotome Glyp signatus frontoclypeus is distinctive.
G. barbipes can be separated from the other species of subgenus Glyptotendipes by the ventral tubules on segment 11.