I found this 10mm. beetle while turning over pine logs. It is Checkered Beetle – Thanasimus formicarius. A few moments after finding it I found a second one about 20 feet away from the first. Penny Green from the Sussex Biodiversity Record Centre has let me see the previous records for this beetle. It turns out the last one recorded in Sussex was 13 years ago, and none of the previous finds are anywhere near Brede High Wood. So this makes for a good record for this lovely little beetle that resembles an ant (= formicarius).