wildtokyo-jp:

Emerald moths, Geometrinae, are the group of moths which are the adult figure of geometer caterpillar and have green wings. We often see the 2-3cm diameter of its wings, still, this moth, Tanaorhinus reciprocatus confuciarius, is as large as 7cm at most, one of the biggest emerald moths in Japan.
The distinctive character of this huge moth, resting in the wall of my university, startled me at a glance even from far away. I ran up to the moth unconsciously and looked carefully at the wings. The white complex pattern consisted of scales are just as if wind blowing over the grassland or handmade cardigan shape of Scandinavia. The green as the ground colour is also changing its expression according to its angle. I’ll never be bored with observing this beautiful creature.

アオシャクは、シャクトリムシが大人になった蛾の仲間のうち、グリーンの翅を持つものが多いグループ。よく見るアオシャクは翅のさしわたし2-3cmほどだが、このカギバアオシャク（鉤翅青尺蛾）は、7cmにも達することのある日本最大級の種類。
大学の壁で休んでいた、この特大サイズのアオシャクが醸し出す堂々たる風格には、遠目からでもはっとさせられる。思わず駆け寄ってじっくりその翅を眺めると、鱗粉で描かれる白い模様の複雑さは、草原を渡っていく風の波紋か、あるいは、北欧柄のカーディガンか。地の緑色もまた、見る角度によって様々にその趣きを変え、いつまでも見飽きることがない。