---
title: "Triangelmot"
description: "Hypsopygia costalis — Insecten en spinnen. Hypsopygia costalis, the gold triangle or clover hay moth, is a species of moth of the family Pyralidae."
canonical: https://animalchecklist.com/nl/animal/clover-hayworm-moth
last_updated: 2026-09-20
---

# Triangelmot

> Hypsopygia costalis — Insecten en spinnen. Hypsopygia costalis, the gold triangle or clover hay moth, is a species of moth of the family Pyralidae.

- Scientific name: *Hypsopygia costalis*
- Category: `insects` (Insecten en spinnen)
- Habitats: `grassland` (Weiden en velden)
- iNaturalist observations: 11716
- Wikidata: [Q835689](https://www.wikidata.org/wiki/Q835689)
- iNaturalist taxon: [129149](https://www.inaturalist.org/taxa/129149)

## Names

- en: Clover Hayworm Moth
- de: Heuzünsler
- fr: Pyrale du fourrage
- nl: Triangelmot

## Countries with the most observations

US (2197), CA (1261), AT (935), DE (871), RU (673), HU (661), FR (584), GB (580), IT (404), ES (331), UA (316), BG (263)

## Summary

Hypsopygia costalis, the gold triangle or clover hay moth, is a species of moth of the family Pyralidae. It was described by Johan Christian Fabricius in 1775 and is found in Europe.

The wingspan is 16–23 mm.The forewings are purple, sometimes blackish-sprinkled; median part of costa dotted with yellow; lines yellow, nearly straight, forming large spots on costa; a terminal line and cilia yellow. Hindwings as forewings, but lines much 
nearer together, irregularly curved, not forming costal spots. 
The adult moths fly from May to July, depending on the location. The supposed species H. aurotaenialis is included here…

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

## Photo

![Triangelmot](https://animalchecklist.com/img/animals/clover-hayworm-moth/medium.jpg)

Photo: Andreas Manz · CC0 · inaturalist — https://www.inaturalist.org/observations/171144310

## Machine access

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