---
title: "Gem Moth"
description: "Orthonama obstipata — Owady i pająki. Orthonama obstipata, the gem, is a moth of the family Geometridae."
canonical: https://animalchecklist.com/pl/animal/gem-moth
last_updated: 2026-09-20
---

# Gem Moth

> Orthonama obstipata — Owady i pająki. Orthonama obstipata, the gem, is a moth of the family Geometridae.

- Scientific name: *Orthonama obstipata*
- Category: `insects` (Owady i pająki)
- Habitats: unknown
- iNaturalist observations: 18749
- Wikidata: [Q2579316](https://www.wikidata.org/wiki/Q2579316)
- iNaturalist taxon: [143002](https://www.inaturalist.org/taxa/143002)

## Names

- en: Gem Moth
- de: Wandernder Blattspanner
- fr: Phalène dimorphe
- nl: Zuidelijke bandspanner

## Countries with the most observations

US (10600), CA (2792), PT (562), ES (258), IT (245), FR (151), AT (110), GB (60), BG (53), RU (49), KR (34), CN (30)

## Summary

Orthonama obstipata, the gem, is a moth of the family Geometridae. The species was first described by Johan Christian Fabricius in 1794. It is a cosmopolitan species. In continental Europe though in the northeast, its range does not significantly extend beyond the Baltic region and it is absent from northern Russia. This well-flying species is prone to vagrancy and able to cross considerable distances of the open sea; it can thus be regularly found on the British Isles (though mainly in the south) and even on Iceland.
Under its junior synonyms Nycterosea brunneipennis and Geometra fluviata, the gem is the type species…

Text: Wikipedia (en), CC BY-SA 4.0 — https://en.wikipedia.org/wiki/Orthonama_obstipata

## Photo

![Gem Moth](https://animalchecklist.com/img/animals/gem-moth/medium.jpg)

Photo: dinomariobob · CC0 · inaturalist — https://www.inaturalist.org/observations/303013730

## Machine access

`GET https://animalchecklist.com/api/v1/animals/gem-moth?lang=pl` — see [openapi.json](https://animalchecklist.com/openapi.json).