Synanthedon formicaeformis (Esper, 1782)
52.0080 (B&F: 380)
Resident. Both adults and larvae are sometimes fairly common in a few swamps and gravel pits. Extremely local. Single-brooded, flying mainly during June, occasionally from late May or to mid August. Larvae bore and feed on the wood inside branches of willow. (Pratt, 2011).