３ Orthocldiinae return to top page
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Orthocladiinae is divided into the following eight groups according to feature.
３－１ Camptocladius group
This group lacks eithere anal tubules, posterior parapods or anal setae, or have degenerated very much. Antenna very short, 0.5 times or less than mandible.
Camptocladius , Pseudosmittia , Georthocladius , Smittia ,
Gymnometriocnemus , Bryophaenocladius , Ａｎｔｉｌｌｏｃｌａｄｉｕｓ
３－２ Corynoneura group
Antenna 0.5 ～1.5 times of head length.
Corynoneura , Thienemanniella , Rheosmittia
３－３ Hydrobaenus group
Antenna ６～７ segments. ＳⅠdivided into several teeth or plumose.
Hydrobaenus , Oliveridia , Parakiefferiella , Heterotrissocladius ,
３－４ Krenosmittia group
Anal setae 1 or 2, 0.5 times of body length.
Krenosmittia , Parachaetocladius , Pseudorthocladius
３－５ Diplocladius group
Ventromental plate present, ;. Form of Ventromental plate , number and
length of beard various.
Diplocladius , Rheocricotopus , Psectrocladius , Parorthocladius ,
Synorthocladius
３－６ Orthcladius group
Mentum with 11 or 13 teeth. Ventromental plate very small or lacking ,
not beard. SⅠ bifid.
Orthocladius , Cricotopus , Paratrichocladius ,
３－７ Eukiefferiella group
Mentum with 11 teeth, or mediantooth divided into two . Ventromental plate very small , or lacking .
Eukiefferiella , Paraphaenocladius , Parametriocnemus , Paracricotopus ,
Tvetenia , Cardiocladius , Chaetocladius ,
３－８ Brillia group
Although Mediantooth of menrum three , center tooth small or lacking.. Antenna with 4 segments.
Brillia , Neobrillia , Eurycnemus , Euryhapsis
３－９ Orthocladiinae others
Limnophyes , Heleniella , Nanocladius , Propsilocerus,
Metriocnemus , Epoicocladoius, Symposiocladius