Sunday, 17 March 2013

Psychidae, Diplodoma laichartingella a 1st record for Calderdale 17 03 2013

Finally found some Psychidae Cases after quite a few Years of searching ! Found 4 ,2 were in the same Hollow the other 2 were on seperate trees.all were in hollows facing South just above the roots on large Beech Trees,perhaps judging by the size just over 11mm, and bits of insect cases and shape of the case ie Triangular ,they look like Diplodoma laichartingella ? see what others think ? regards Bri.ps Sent some pics to Harry Beaumont he agrees they are Diplodoma laichartingella.thanks for all the comments.Checked some other places today 24 03 13,searched Bob wood Colden Clough with non found,tried Eaves Wood bottom end of Colden where i struggled to find these 2 Cases in the same Hollow at the base of a Beech as previous facing South,maybe the smaller case 2nd pic down left,is a 1st Year and will emerge in 2014 ? I also found one Case in another part of Callis Wood.Bri.29 03 13 found an Old Larval Case at another site today Heights Wood Stoodley Glen and this one was still suspended from Silk Thread,with Pupal Exuvium protruding,maybe the Moth emerged last Year 2012, top pic ! this is the 1st on Oak that ive seen so far,Difficult to find on old knobbly Oaks,maybe thats the reason most are found on Beech !! Found 5 more Cases on 02 04 13 at Middle Dean Wood and a 1st one found on Sycamore.Looks like they are Locally common ! Bri.

10 comments:

AndyC said...

well done bri, that took some doing....hope it barea fruit.

AndyC said...

Are they occupied..

brian leecy said...

I have kept one which is occupied.Charlie Fletcher has never seen them,but thinks it looks good for D laichartingella . i have sent Harry some pics,he has seen this species,forgot to mention the site is Callis Wood the Beech Wood side.

Winston said...

good find Bri

Winston said...

interesting construction. I guess appearance can vary quite a bit depending on what's locally available?

AndyC said...

Sounds bang on for laichartingella,being found in a low hollow on birch as well and the case constrution...a fantastic find.well done..pity they have a two year larval period..it will take some looking after...

AndyC said...

sorry beech

charlie streets said...

Bagworms seem particularly elusive in Calderdale for some reason. They've certainly eluded me (and Paul) over the years.I think it was Ian who found a Psyche casta once near Brighouse.Well done Brian!

brian leecy said...

Checked more Beech Wood areas,before this atrocious weather came in ! at Gorpley Clough,Commons Bank Wood,Heights Wood, not found a single one ! Maybe they are just very localised ! The one i am keeping seemed to feed on Moss and Dead Beech Bark,although it seems to have gone into a Torpid State with the arrival of this cold snap !

brian leecy said...

Three sites for this species so far in Calderdale now,Callis Wd,Eaves Wd and Pecket Well Clough,all round the Hebden Bridge area,have only found them on Beech so far ! Bri.