Bembecia vulcanica (Pinker, 1969)

5 exuviae— 2 males, 3 females (Tenerife 1994).

Length and width: 9.62–17.61× 2.73–4.63 mm (average: 14.7× 3.7 mm).

Frons slightly elongated in dorsal view. Frons with a long, wrinkled depression. Frontal setae situated slightly behind level of lateral angles of frons in dorsal view.Anterior end of frons often has a wrinkled mound. Central ridge enlarged, terminates with a T-shape (Fig. 8a). Head projection blade large, pointed and distinctly curved in lateral view, forward with a small frontal tubercle. Dark margin robust. Frons rises rather steeply from projection blade in lateral view. Lateral depression on head relatively narrow and caudoventrally concave (Fig. 8b). Distance between setae Cl 2 from 4 to 4.5× greater than distance between C1 2 and Cl 1. Setae Cl 1 and Cl 2 situated close to each other. Labrum truncate for a greater distance and with concave lateral sides (Fig. 8c). Cremaster slightly pointed and shorter than anal suture in male. In female cremaster approximately equal in length to anal suture. Anal area flat (Fig. 8d).

Diagnosis. Head projection directed forward with a small frontal tubercle in B. vulcanica, similar head projection absent in other study species.

Biology. Univoltine. Larval host-plants are Fabaceae: Bituminaria bituminosa (L.) C.H.Stirt. and Lotus campylocladus Webb & Berthel, L. hillebrandii H.Christ.

Distribution. Endemic to Canary Islands (Laštůvka & Laštůvka 2001).