Spinner

Microlinyphia pusilla

One of the things this project has been great for is helping me to conquer (sort of, anyway) my very irrational fear of spiders. Knowing that there are no dangerous (native) spiders on these islands certainly helps with my comfort level. But it's the process of putting a name on our eight-legged fellow residents that's doing the most good. Heck, I've even gotten to the point where I can pick them up and put them outside if I find them in the house – well, most of them, anyway. This little lady was investigating the back of one of our outside chairs on this date a few years ago, and I finally got around to identifying her today. It's a female Microlinyphia pusilla, a common and widespread species across most of Britain (as well as much of central and western Europe). This species is particularly partial to grasslands, but is found in a variety of other habitats as well. Its web is a horizontal sheet spun in low vegetation. Females are larger and plumper than males, with a dark central line on their mostly white abdomen, often with triangular dark patches overlapping towards the back end. The whole abdomen is surrounded by a dark band too. Males are shiny and black with a narrow abdomen that often shows two white spots near the front edge. Adults are seen from spring into mid-summer, with a few persisting into the autumn, so we should be seeing them around for a few more weeks yet.

Nettle bug

Nettle Ground Bug (Heterogaster urticae)

Right now, our Common Nettle plants are liberally sprinkled with mating pairs of Nettle Ground Bugs – and according to things I've been reading whilst researching this post, they may remain linked together for days! When they're done, the female will lay her eggs in the ground near a nettle plant (usually Common Nettle, but occasionally one of its close relatives). That plant will serve as host to the developing larvae, which should reach adulthood by September. These adults will overwinter, hibernating during the coldest months and re-emerging in the spring when the temperatures rise again. The above picture is far larger than life-sized; the bug itself measures a mere 6–7 mm (about a quarter of an inch) long. The alternating light and dark patches on the sides of its abdomen help to identify it, as do its stripey legs, its all-dark antennae and the long, erect hairs on its head and pronotum (the part of the insect just behind its head). It's common and widespread in open areas of southern England and Wales (basically anywhere nettles are found), and is spreading northwards, with recent records from as far north as Scotland. We're happy for them to eat all of the nettles they want; we have far more of that than we'd like in many corners of the garden.

Leaf rolling

Rosy Leaf-curling Apple Aphid (Dysaphis devecta agg.)

These eye-catching leaves with their bright red rolled edges caught my eye when I walked past our apple tree the other day. They're evidence of the presence of the Rosy Leaf-curling Apple Aphid (Dysaphis devecta agg.), a minor pest which attacks the leaves of various apple species. There are actually three closely related aphid species which make up the Dysaphis devecta group. All look similar, but one lives only on apple trees while the other two alternate between apple and Cow Parsley or Rough Chervil. The aphids feed on the tiny veins in the leaves, and the longitudinal red galls are formed in response to substances found in the aphid's saliva. Fortunately, the aphids don't do much harm to the tree itself. Here in our garden, we have plenty of natural predators to help keep them under control, including Eurasian Blue Tits, various ladybirds, some species of hoverfly larvae, and several types of parasitic wasp. It's all part of the circle of life!

Mike's picture of the aphids themselves