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**correction to yesterday's post: the Hyllus Giganteus measures between 15 to 25 MILLIMETERS in length.
🚨 ARTHROPOD OF THE DAY 🚨
The holly blue is a tiny blue butterfly that has a scattered distribution around Ireland. It is largely confined to the relatively scarce patches of native woodland that still support both holly and ivy. It is also found in urban and suburban gardens or parkland where these plants feature prominently.
This attractive little insect exhibits a pronounced north-south divide when it comes to its life-cycle. From Dublin southwards populations of the holly blue are double brooded, producing two generations in a single summer. Females from the spring brood lay their eggs at the base of the developing flowers and fruits of holly trees, while those of the summer brood lay their eggs in similar locations on ivy. North of Dublin holly blue populations are single-brooded and produce only a single generation in a season. In these single-brooded populations holly is generally the sole food plant for caterpillars.
Adults feed on the nectar from flowers of both holly and ivy, oozing sap, aphid honeydew and carrion juices. They are most likely to be seen sunning themselves high up near the tops of holly and ivy bushes.