20µm vertical plankton net, 25min at 2m depth, 9am
Acalypta parvula (Fallén, 1807)
3rd antennal segment thickened at base, pronotum tricarinate, sutural row of areolae uniseriate medially, discoidal area restricted to about anterior 2/3 of hemelytra, medially with about 6 rows