A Dun-bar moth larva (Cosmia trapezina), found in woodland at Hawksworth, appears to have been the host of the ichneumon Scirtetes robustus. This is one of the Campopleginae and used to be called Spudastica kriechbaumeri. It is a common parasitoid of several Orthosia spp. and this pupa should hopefully hatch next Spring.
When a parasitoid emerged from one of my Luffia ferchaultella cases collected from Hollins Hall Hotel, Baildon VC64, I was initially assuming it was going to be another Diadegma.
This one is a smaller insect and Mark Shaw tells me that it is the Braconid, Ascogaster grahami.
It is not a rare species and usually parasitises tineids rather than Psychidae.
In the Spring of 2011 I discovered a colony of the moth Narycia duplicella on an ancient Oak tree close to Bolton Abbey in North Yorkshire VC64.
Two parasitoids emerged from the lichen-feeding larvae (4/4/11 & 8/5/11).
Mark Shaw kindly identified the parasitoids as Diadegma sp. (Ichneumonidae: Campopleginae).
Klaus Horstmann has described Diadegma narcyiae from an example in the Netherlands in 2008. There is already a suspected British specimen (Hampshire) but it is a male and so very uncertain.
My two Wharfedale specimens (also both male) are now also with Horstmann and, hopefully will be positively identified soon.
In 2012, Klaus Horstmann corrected the original incorrect spelling to Diadegma naryciae (justified emendation).
This tiny Adelius sp. emerged on 23/5/2010 from a Cowberry leaf that had been mined by an Ectoedmia weaveri larva. The Cowberry was found on Barden Moor VC64, on the east bank of Lower Barden Reservoir.
The Adeliinae are part of the Braconidae and are specialist parasitoids of Nepticulids.
Mark Shaw tells me that this is a very unrevised group - probably a great many, more or less specialised species, with only a few names in use and perhaps none of them reliably.