Natural History A Walk in Aston Rowant 4 July 2022 Ian Alexander Burnet Moth on Scabious Dark Green Fritillary … in Motion … come on, you take the camera, and see if you can get a better shot of one … they’re very flighty. But you can certainly see the green underwing coloration, with big rounded white spots, in the third photo. The High Brown Fritillary is very similar but vanishingly rare…. mind you, this species could well be called the High Velocity Fritillary, so there. Rattling a Yellow Rattle – yes, really, play the video and listen! The plant is important in flowery meadows, as it parasitises the tougher and taller grasses, weakening them and letting in the smaller and prettier wild flowers. An old farmers’ name for it is accordingly “Poverty”: guess they preferred money to beauty and diversity in them there days. A gloriously shiny and iridescent green leaf beetle, Cryptocephalus hypochaeridis, on Hawkweed Chiltern Gentian, probably Pyramidal Orchid Dark Mullein
Natural History Insects (and Flowers) of Chalk Grassland at Aston Rowant 19 July 2021 Ian Alexander 6-Spot Burnet Moth side view with proboscis nectaring on Marjoram, antennae iridescent blue. Extremely flighty on a really hot day! 6-Spot Burnet Moth on Marjoram, Red on Iridescent Green (like the related Forester Moth, which flies here earlier in the year) 6-Spot Burnet Moth on Marjoram, same insect, looking Red on Black. The brilliant conspicuous coloration is evidently aposematic, more or less honestly warning that the insects are toxic, containing cyanogenic glucosides. A recent article finds, however, that the most toxic burnet moths are not more aposematic, i.e. there is no quantitative relationship. (But wouldn’t the less toxic moths evolve to look like the most toxic ones, as it’s safer…) Moulting Grasshopper Hoverfly on St John’s Wort A magnificently large Parasitic Wasp on Hogweed Soldier Beetle on Hogweed Pyrausta nigrata: a beautiful chocolate-brown Micro Moth of downland with a wavy wing bar, among the wild Thyme (that’s how small it is) Common Blue butterfly on Self-Heal Marbled White on Scabious Dark Green Fritillary (with quaking-grass above). Not only rare, but very flighty! I was happy to get this long shot through the grass. There were also Small Whites, Meadow Browns, Gatekeepers, Small Skippers, and possibly Chalkhill Blues about. A magnificently short, gnarly Beech getting a good toe-hold on the Chalk Well this probably is a Chiltern Gentian, the flowers are large, and showier than the Autumn Gentian; pinker than the camera has made it look, too