Common Copper Butterfly

Lycaena sp.

This little butterfly (about 25 mm across) is one of the commonest in the country. There are thought to be at least four similar species in New Zealand and I won’t attempt to guess which one (or ones) are on Puangiangi.

Common Coppers are short-lived with the adults lasting 8-12 days. The butterflies are present year-round on the island though. The video shows a male active in midwinter. The caterpillars hatch on and feed on Muehlenbeckia complexa and adults are often seen around the many patches of that scrambling, wiry shrub.

The dark wing veins on females are more or less filled-in with black, while in males the veins have distinct black edges with clear insides. The females I have seen also have a line of blue scales across the bottoms of the wings.

I have found them to be skittish and difficult to photograph. The best tactic seems to be to pick a likely spot and wait quietly for them to approach and decide if you are a threat or not. After a while they will remain quite close.

North Island Eyebright

Euphrasia cuneata

Chris Horne, Barbara Mitcalfe and Geoff Walls listed this Euphrasia during their survey of 2012. I’m not sure where they found it, but I first saw a single plant as recently as 4 years ago on a new track we put in. Since then it has self-seeded about 20 metres along the track and is strictly “don’t trim”.

This sub-shrub is found throughout the North Island, into the Marlborough Sounds and pops up at Lake Ellesmere. It’s a root parasite but does photosynthesise for itself also. Euphrasias are very difficult to grow but this one is said to be the easiest of them.

The track is lit up with their beautiful flowers in autumn. You might well find some for yourself around now (April) if you live in range. Open country where it won’t be out-competed, sea level to alpine, and track sides or road cuttings are good places to look.

(Part of an ongoing effort to photograph all the vascular plants on the island. Each species will get a page when I get enough reasonable photos.)