Cimbex quadrimaculatus

Description

Cimbex quadrimaculatus is a large sawfly species in the family Cimbicidae, known for its distinctive appearance and significant impact on certain plants. Adults of Cimbex quadrimaculatus typically measure between 19–21 millimeters in length. They are characterized by a dark brown to black body adorned with prominent yellow markings on the pronotum and abdomen. The wings are lightly tinted, and the antennae are mostly orange with darker bases. The larvae, which are notable for their yellow and black patterns on a whitish body, can grow up to 43 millimeters in their final instar. This species is recognized as a significant pest, particularly of almond trees. It also feeds on other plants, including hawthorn (Crataegus monogyna) and cherry and plum trees (Prunus cerasus and Prunus domestica). Cimbex quadrimaculatus has a univoltine life cycle, producing one generation per year. Eggs are laid in early summer, with larvae feeding on host plant leaves before spinning a cocoon. The larvae overwinter in diapause as pre-pupae, pupating the following spring. It is generaly rare in Central Europe and only localy more common, with potential causing damages. Prefers warmer habitats.