The Buprestidae form a very species-rich group of beetles in the tropics. In NW Europe the family is reduced to only a handful of species (Bily, 1982a). The larvae have a strongly enlarged, and especially broadened, prothorax, that enables them to brace themselves in their tunnels. By far the most species are wood borers; some species live in stems of herbaceous plants, and only three genera, Aphanisticus, Trachys, and Habroloma, have mining larvae.
The larvae of Aphanisticus bore in the stems, and mine in the leaves, of Juncus and Carex. Habroloma en Trachys mine in a few species of herbs and trees. The mines are unmistakable because the females cover the oviposition site with a drop of black secretion. This dries to a solid semi-globule, brightly shining in Aphanisticus and Trachys, matt in Habroloma (Hering, 1926a; Brechtel & Kostenbader, 2002a). The larvae of the latter two genera are flattened, and all segments have a lobelike lateral extension; the outline of the widens gradually from the rear to the prothorax. In Habroloma the prosternum and pronotum bear a large, black shield; Trachys has similar shields ventrally and laterally on all segments.
The larvae are described by Bily (1994a) and in the splendid book by Brechtel & Kostenbader (2002a), that also extensively discusses the biology and distribution.
Bily (1994a), Hering (1926a), Brechtel & Kostenbader (2002a).