‚P|‚R|‚R@@Tanypodinae@@‚n‚”‚ˆ‚…‚’‚…‚“@@@

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As for the following chironomids, a genus to belong to is not clear.

‚s‚‚Ž‚™‚‚‚„‚‰‚Ž‚‚…@‚f|‚s‚a@C‚s‚‚Ž‚™‚‚‚„‚‰‚Ž‚‚…@‚f|‚s‚bC@‚s‚‚Ž‚™‚‚‚„‚‰‚Ž‚‚…@‚f|‚s‚w@@,@Tanypodinae G-TA


‚s‚‚Ž‚™‚‚‚„‚‰‚Ž‚‚…@@Genus TB

Body length ‚X`‚P‚O‚‚. It lives in the sandy mud bottom , Kusiro river (Hokkaido). I caught a larva of this at the shore of Lake Shikotu ,too.


‚PFAntenna with 4 segments., 0.4 times of head.length.B
‚QFPecten hypopharyngis 30 or more teeth.
   they are small as an out side.
@@Paraligula is divided into 4 in a vase , and    each diviided into 2`3 more.
‚RFmandible
‚SFBasal segment of maxilla 1 .ring organ 2/3 from bottom.
@@ring @organ
‚TFHeight of procercus 5 times of diameter.    anal setae 7.
‚UFM-appendage
‚VFClaws of anterior parapod
‚WF2 setae forwards and 4 setae backwards on   both sides of 2nd `9th body segments.
    Without fringe of swim-seta.
‚XFAnal tubules
‚P‚OFClaws of posterior parapod
@
Ligula with 8 teeth, outer 2 teeth large, middle 6 teeth equal size. They arranged by a low convex.  As for the width of ligula , the whole is about the same . @ @
@
apical tooth large,  2 accessory teeth small,  basal tooth conciderably large. antenna with 4 segments,  0.4 times of head length.  antennal ratio 2.5.

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‚s‚‚Ž‚™‚‚‚„‚‰‚Ž‚‚…@‚f‚…‚Ž‚•‚“@‚sC

small size larva : body length 13`1.5mm.  living body color milky white. Head light yellow. Eye spot 1 pair. It was caught at the source of the Takahasi river.

Ligula with 4 teeth. inner 2 teeth curved outwards.
Pectenhypopharyngis with 20 or more teeth, 3 teeth
at the coner large.
Mandible : wide triangle, slightly curved.
Inner teeth and basal tooth very small.
seta subdentalis needle shape..

‚PFAntenna ; 4 segments, half of the head lengthD
   Accessory blade very long and the tip swells out.
‚QFLigula
‚RFMandible
‚SFMaxilla ; ‚‚|seta 3 segments
‚TFM-appendage: granulation consisting of 7`8   parallel rows.
‚UFAnal tubules and Posterior parapod
‚VFProcercus: Length 3 times of the diameter. .Anal aetae 6.
‚WFClaws of posterior parapod

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Tanypodinae G-TD

Just editing !

Tanypodinae Genus TX

This larva was caught in Naruse river( Branch of Omono river)

Ligul with 5 teeth,. Row of teeth slightly concave.
Point of inner tooth straight.  
Paraligula bifid. Pecten hypopharyngis with 13`14 teeth.
Apical tooth almost curved in right angle .
2 large inner teeth and considerably large basal tooth.
Lump-shaped projection at the base of apical tooth ,  outside of mandible uneven.
‚PFAntenna :4 segments, half of head    length, antennal ratio 2.5
‚QFExpansion of the bit of antenna
‚RFLigula
‚SFM-appendage , drosomentum. Grsanulation   consisting 8 paralell rows.
‚TFmandible
‚UFMaxilla: palp of basal segment 1, b-seta 2   segments
‚VFClaws of anterior parapod
‚WFClaws of posterior parapod
‚XFProcercus; length 3 times of the     diameter, anal setae 7.
‚P‚OFanal tubules long oval.

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Tanypodinae G-TA

This larva caught in Biwa lake.
Body length 11`12 mm.. without fringe of swim-seta


‚PFAntenna 5 segments, antenal    ratio 2.4
‚QFLigula 5 teeth almost equal    size. Whole the ligula about the   same width.  Paraligula divided     into 4 in the base and each   divided@into 3`6.   Pectenhypopharyngis with 30`  32 teeth.
‚RFMandible: both accessory teeth    and basal tooth small.
‚SFDrosomentum tooth absent.
‚TFpalp of maxilla 1 segment
‚UFClaws of posterior parapod
‚VFLength of procercus 4.5 times     of the diameter. nner side of   procercus dark brown. Anal    setae 7.
@@

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