Andrena bicolor (male) on Petasites hybridus
Andrena bicolor (NL: Tweekleurige zandbij), a common mining bee, is just one of many similar looking bees which live solitarily. They nest in the ground, usually where the soil is quite soft. A small nest containing a few cells are constructed, which the female fills with pollen. A single egg is laid in each cell and the larvae feed on the pollen. Adults emerge in Spring the following year. The males (see image) are much smaller then the females.
Petasites hybridus (NL: Groot hoefblad / EN: Common Butterbur) is a herbaceous perennial plant in the family Asteraceae, native to Europe and northern Asia. The flowers are produced in the early spring, before the leaves appear; they are pale pink, with several inflorescences clustered on a 5-20 cm stem. The leaves are large, on stout 80-120 cm tall stems, round, with a diameter of 40-70 cm. The species is dioecious (The term dioecious is typically used only in plants and plant species. Dioecious refers to a plant population having separate male and female plants.) The image shows the male flowers.
Image: Ranst (BE) - 15/03/2011
© Johan Dierckx
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All species are photographed in their natural habitat, without cutting or capturing them, and with maximal respect and the least possible disturbance to the environment.
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