Orthocladius type-S

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Head (3rd instar)   > Comments  


  • premandible: 1+1? (apical+basal); seta S1: 2.0 i.e. bifid;
  • mentum: 1 median tooth, 6 lateral, submental setation below 5-5.5th lateral tooth, long ventromental plates;
  • mandible: 3.5-1-0-0 (inner-apical-outer-surface), outer margin strongly engraved;
  • postoccipital margin: brown

Head (3rd instar):


#1 Andreas Plank wrote at March 26 Wed, 2008, 19:06 (+0000 UTC) answer



is this the same like Orthocladius type S in Brooks et.al. 2007 (The Identification and Use of Palaearctic Chironomidae Larvae in Palaeecology)?



#2 HQ Tang wrote at April 15 Tue, 2008, 12:26 (+0000 UTC) answer homepage

It is very similar with your "Cricotopus-Orthocladius indet 2", i can not find the premandible of present species. I agree with your opinion.

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