Citrus Flatid Planthopper (Metcalfa pruinosa) lives in temperate forests across Southern Europe, North America.
Fascinating facts about the Citrus Flatid Planthopper
- Originally a Nearctic insect, the citrus flatid planthopper has spread far beyond its native range. It now occurs across most of Europe, being recorded in Austria, Britain, France, Spain, Italy, Hungary, Romania, Slovenia, Poland, Switzerland and Moldova, and also reaches the Neotropical realm and South Korea.
- A female citrus flatid planthopper deposits roughly one hundred eggs into the bark of a suitable host plant. These eggs remain dormant through the winter months, surviving the cold before hatching in the following spring. The timing of egg laying follows the autumn night-time mating period, ensuring that the next generation emerges when fresh foliage is available. This reproductive strategy links the insect's life cycle tightly to seasonal plant growth.
- When large groups of planthoppers feed on plant sap in summer and autumn, they excrete excess sugar as a sticky honeydew. This sugary waste draws bees, which collect it and later transform it into honey for their hives. The insects' gregarious feeding habit therefore creates a direct link between their sap-sucking activity and the resources available to pollinators. Their honeydew thus becomes an unexpected contribution to the surrounding ecosystem's honey stores.
- Adult citrus flatid planthoppers are tiny, reaching only 5.5-8 mm in length and 2-3 mm at their widest point, so they blend easily into foliage. Their bodies start out whitish, but the colour can shift from brown to gray as a bluish-white epicuticular wax develops, especially on the younger stages. This wax coating not only masks their true hue but also gives the insects a frosted appearance that helps them avoid detection on leaves.
- Metcalfa pruinosa follows a univoltine cycle, producing a single generation each year. Adults pair up during autumn nights, after which females embed about one hundred eggs in the bark of host plants; these eggs remain dormant through winter and hatch the following spring. The newly emerged adults become most noticeable in summer and autumn, when they gather in groups to feed on plant sap, completing the yearly rhythm.
Sources
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At a glance
RangeSouthern Europe, North America
HabitatTemperate forests
DietPlant sap fluids
About the Citrus Flatid Planthopper
In the dappled light of a sun-kissed orchard, the Citrus Flatid Planthopper dances through the air, its delicate wings beating at a hypnotic pace as it navigates the intricate network of branches and leaves. With a mesmerizing iridescence that shimmers like the finest opals, this tiny, enigmatic creature flits from bloom to bloom, sipping nectar and leaving in its wake a trail of subtle, honeyed fragrance. As it moves, its slender body glimmers with a soft, ethereal light, as if infused with the very essence of the citrus grove itself.
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