Stenopterapion (Cobosiotherium) scutellare (Kirby, 1811)

On the 1st February 2013 I was searching the Gorse (Ulex euripaeus) on Baildon Moor for moth larvae. I was particularly looking for the caterpillars of the Scotopteryx geometrids as a very rarely collected parasitoid (Aleiodes) uses July Belle (S. luridata) as a host. It is quite likely that Lead Belle (S. mucronata) is an alternative host and Baildon Moor is where the only known Yorkshire specimen of this moth was captured in 1897.


I noticed that one of the gorse stems was swollen and, suspecting this to be a gall, I cut the stem in two to reveal an insect larva. I took photographs of the gall and larva and posted these onto the British Galls Yahoogroup website which is an internet forum run by the British Plant Gall Society. Within an hour, a reply was posted suggesting that the galls were likely to be caused by the coleopterous species Stenopterapion scutellare (Kirby, 1811).

I have now sent the record to the BPGS and to the Plant Galls Recorder for the Yorkshire Naturalists’ Union). It seems to be a first record for VC64.

There are still a few galls visible on the gorse bush and I hope to harvest these later in the year in order to see the adult beetle.

Stigmella anomalella on Dog-rose

I have a single Dog-rose (Rosa canina) in the garden which I only planted earlier this year.

I was pleasantly surprised last weekend when I found twenty-eight tenanted mines of Stigmella anomalella.

Pammene regiana

Last November I found several larvae feeding under the loose bark of an Italian Maple in my garden. I havo only recently realised that these are Pammene regiana after seeing a photograph in the newly published Micro-moths field guide.

Triangle Plume (Platyptilia gonodactyla) larva and pupae

Having located a large stand of Coltsfoot (Tussilago farfara) earlier in the year, I went back this weekend lo look for the early stages of the Triangle Plume moth. The larvae feed within the seedhead of Coltsfoot at this time of year and I managed to find one larva and three pupae.

As I was hoping to find evidence of parasitism by the braconid Microgaster alebion I will have to go back and look for some more larvae, the parasitoid would not have allowed its host to reach the pupal stage.

Timothy Tortix larva

I was out at the Denso Marston Nature Reserve looking for caterpillars on the various grasses.

Although my target species were the leaf-mining members of the Elachista family I was still pleased to find this tortrix larva hiding in spun-together blades of grass on the banks of The River Aire.

I suspect that it is the polyphagous Aphelia paleana but will rear it through to check.

Pteromalus semotus

This Pteromalus semotus has emerged from the larval web of White Satin Moth (Leucoma salicis) found at Hull, VC61. It is actually a hyperparasitoid, the primary parasitoid of the moth being the braconid Cotesia melanoscela.

Two other chalcids emerged from the web, a little blue one (as yet unidentified) and a Eurytomidae (probably Eurytoma).

White Satin Moth stowaways

This little feller is an over-wintering caterpillar of the White Satin Moth (Leucoma salicis). I found a couple of these amongst a batch of braconid parasitoid pupal cases collected from the poplar trees in Queen's Gardens, Hull. I have never seen the adult of this species even though it seems to be expanding its range across the county.

I am grateful to Dean's Daily Diary for alerting me to the fact that Colt's-foot (Tussilago farfara)is beginning to flower.
This was one of several found at Timble Ings yesterday. I had a quick look for the feeding signs of Triangle Plume larvae but these are probably still in hibernation.