- Trachys convergens Abeille de Perrin, 1900
No status defined
Value of species
A Central European monophagous species reaching South Europe and preferring steppes, fores steppes and sun-exposed grassy slopes in lowlands and warm escarpments up to 800 m as well as ruderal biotopes and also parks and gardens in the centers of big cities. Single eggs are deposited both on upper side and underside of the leaf and they are covered by brown, lustrous protective shield. The larva bores a wide mine in the leaves of sun-exposed host plants and its development is also very short (40 days). Adult beetles emerge in April – June with a maximum in May. Beetles hibernate in the detritus around the host plants. Since the host plant is very low and during the summer usually completely covered by higher vegetation, the development of the second generation is limited only to those localities where the host plant grows in solitary, e. g. rocky slopes, ruderals, edges of roads or parks. Host plants: Glechoma hederaceum, G. hirsutula (Bílý, 2002).