Around 40 adults and children joined entomologist Dr Keith Porter for this popular event run by the Friends of Bourne Wood.
The weather was mostly warm but cloudy but nonetheless a wide range of insects and spiders were found by the group using various collecting equipment including nets.
One of the more exciting observations was that of a purple emperor butterfly flying around the top of an oak tree, although not everyone in the group spotted it! This large colourful butterfly appears to have only colonised Bourne Wood in the last few years and the caterpillars feed on goat willow or sallow. Other butterflies seen included large numbers of ringlet butterflies plus large skipper, gatekeeper, comma, meadow brown, silver-washed fritillary and a few people had a brief glimpse of a white admiral.
Of other insects, numerous common soldier beetles were in evidence – these orangy-red beetles feed on nectar, pollen and aphids and were particularly numerous on the flowers of hogweed. A range of different species of true bugs were also found, including the woundwort shield bug, the larvae of which feed on hedge woundwort and white dead nettle. The colourful 7-spot and 24 spot ladybird were also discovered.
A number of different species of spiders were collected but Keith explained that he wasn’t an expert and that there are numerous species in Britain (around 650 species) and identification is a very specialist job!
Some very long-legged spider-like creatures with a rounded compact bodies were collected in the nets. Although resembling spiders they were in fact harvestmen – a group distantly related to spiders that feed on insects but unlike spiders, do not spin webs.
Thanks are due to Keith for an interesting and informative afternoon.
Photographs Pauline Knox, Richard Jefferson, and Sarah Roberts