Pagastia indet (Diamesinae indet 3)

Possibly Pagastia due to submental and head setation.

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Naming history: Diamesinae indet3 -> Pagastia indet

Sections:

Characters

  • mentum: 2 small median teeth, 6/7? lateral, submental setation very far away caudad below 6/(7?)th lateral tooth, large ventromental plates;
  • postoccipital margin: dark brown

Head (4th? instar):

Head (2nd? instar):

Note the quite long seta subdentalis on the mandible.

Comments

2 Comments
#1 Andreas Plank wrote at April 1 Tue, 2008, 11:36 (+0000 UTC) answer

Hi,

 

first I placed it to Nanocladius, but within Chaetocladius or maybe Parakiefferiella there are similar specimens, but the submental setation isn't the same. The I found a similar submental setation in Pagastia (Diamesinae) but I have no further descriptions or photos available. The "2nd?-stage" head belongs I suppose to the same taxa group, because: a) is in same sample b) same submental setation. Any further suggestions?

 

Andreas

#2 HQ Tang wrote at April 15 Tue, 2008, 12:09 (+0000 UTC) answer homepage

It can be confirm that it is not Nanocladius. Setation submenti is a key character of Pagastia, i agree with your opinion. It may be Pagastia orthogonia/lanceolata, both of them are distributed in Palaearctic mountain area, you'd better check some papers of Makarchenko or Endo.

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