Pentagonal aperture and ridged wall plates. Radii (1) and triangular recessed alae (2) between plates in upper wall. Radius (3) of wide rostrum overlaps ala (4) of lateral plate. White tergoscutal flap with brown mark at micropyle (5) and at rostral end (6). Carinal plate (7). Carino-lateral plate (8). Diameter 10 mm. North Wirral, Cheshire, England. June 2011.