GRACILLARIIDAE 1 - 32

15.004 Pale Red Slender (Caloptilia elongella) feeding signs on alder, Milner Royd drain, Sept.16th 09. First the larva creates an upperside, elongated, silvery blotch, then it leaves the mine and rolls the leaf edge downwards to feed in.  

15.006 Small Red Slender (Caloptilia rufipennella), a rolled leaf tip and two blotch mines on Sycamore, Bankhouse wood, June 19th 2014.

15.006 Small Red Slender (Caloptilia rufipennella), a 6mm long blotch mine in Sycamore, Bankhouse wood, June 12th 2014. 

15.006 Small Red Slender (Caloptilia rufipennella), July 7th 2014. Reared from the larva in the rolled leaf edge pictured above.


15.008 Yellow-triangle Slender (Caloptilia alchimiella) mines and feeding signs on oak, Crimsworth Dean, Hardcastle Crags, Aug.18th 2012. This is my only record. There are two vacated mines made by separate larvae, one of which has gone on to make the neat, cone shaped fold at the leaf tip in which to feed.  

15.008 Yellow-triangle Slender (Caloptilia alchimiella), a folded leaf edge, Aug.22nd 2012, details as above. A few minutes after introducing the larva to a fresh leaf it rapidly began to spin the leaf edge over. Countless threads of silk are spun which, as they begin to dry, contract so by pulling the leaf edge over.

15.008 Yellow-triangle Slender (Caloptilia alchimiella), cocoon under a spun leaf edge. After nearly four weeks the larva has finally spun up to pupate. The subsequent pupa was identified by Willem Ellis as being of this species and not the very similar Caloptilia robustella.

15.008 Yellow-triangle Slender (Caloptilia alchimiella) pupa, Apr.27th 2013. After spending the winter in the garage in an airtight tuppaware box the pupa was brought indoors on Apr.4th. After just over three weeks it has begun to colour up nicely shortly before emergence.

15.008 Yellow-triangle Slender (Caloptilia alchimiella), Apr.30th 2013. Freshly emerged from the pupa illustrated above.

15.010 White-triangle Slender (Caloptilia stigmatella), a rolled leaf tip on Goat Willow, the towpath near Elland Bridge, Sept.13th 09.
 
15.010 White-triangle Slender (Caloptilia stigmatella) netted at dusk at Cromwell Bottom, cabin area on July 14th 2018.
 
15.014 Common Triangle (Gracillaria syringella) mine on garden Privet, Skircoat Green, June 6th 2014.

15.014 Common Triangle (Gracillaria syringella) a tightly rolled leaf on garden Privet, June 6th 2014. Several days later when opened up to change the occupants to a fresh leaf there were no less than four larvae present.


15.014 Common Triangle (Gracillaria syringella), June 28th 2014. Reared from the larvae in the leaf fold pictured above.

15.014 Common Triangle (Gracillaria syringella), a mating pair, North Dean wood, May 16th 05. A field observation.

15.015 Ribwort Slender (Aspilapterix tringipennella), mine (centre) on Ribwort Plantain, Tag meadow, Apr.21st 2014. The internal spinning eventually causes the leaf to pucker and fold. Mines seem to be a lot more readily found here than in many other areas nearby.

15.015 Ribwort Slender (Aspilapterix tringipennella), May 5th 2014. Reared from larvae found in mines on Ribwort Plantain at Tag Loop (see above).




15.025 Brown Birch Slender (Parornix betulae), feeding signs on Silver Birch, Elland Bridge, Sept.16th 2010. At first a brown phyllonorycter type mine is formed and then the larva feeds in a folded leaf edge. 


15.028 Hawthorn Slender (Parornix anglicella), mine and folded leaf edge on Hawthorn by the towpath at Elland Bridge, Aug. 10th 2017. A very common species whose feeding signs easily found.





15.029 Hazel Slender (Parornix devoniella), mine and folded leaf edge on Hazel at Hollas Lane, Copley, Aug. 13th 2017. An angular blotch mine against the mid-rib, lower left and then on to a small, folded leaf edge top. Quite easy to find once familiar with these two signs.


15.030 Rowan Slender (Parornix scoticella) larva and feeding signs on Rowan, North Dean wood, Sept.20th 2010. This is my only record.
 
15.032 Pointed Slender (Parornix finitimella) mine and folded leaf edge on Blackthorn, Park Wood crematorium, July 18th 2017.
 
15.022 Apple Slender (Callisto denticulella) mine on Apple, Skircoat Green allotments, July 9th 2017. An initial gallery opening out to an orange blotch.
 

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