Synanthedon culiciformis (Linnaeus, 1758)
Large Red-belted Clearwing
52.0070 (B&F: 381)
Resident. Judging from the number of freshly extruded pupa cases in cleared deciduous woodland, this elusive moth is sometimes fairly common to common, and occasionally even very common in East Sussex; in danger of extinction in West Sussex. Local and distinctly episodic in high numbers due to the irregular availability of fresh-cut tree-stumps. Despite the advent of pheromone attractants, the moth has become much less frequently recorded during the new millennium. Single-brooded, flying mainly during the last half May, occasionally from early May or to early June. Larvae usually feed internally on the bark and wood of birch, less frequently on alder. (Pratt, 2011).