---
title: "Eastern Dobsonfly"
description: "Corydalus cornutus — Insects & spiders. The eastern dobsonfly, Corydalus cornutus, is a large insect in the Corydalidae family."
canonical: https://animalchecklist.com/animal/eastern-dobsonfly
last_updated: 2026-09-20
---

# Eastern Dobsonfly

> Corydalus cornutus — Insects & spiders. The eastern dobsonfly, Corydalus cornutus, is a large insect in the Corydalidae family.

- Scientific name: *Corydalus cornutus*
- Category: `insects` (Insects & spiders)
- Habitats: `freshwater` (Lakes & rivers)
- iNaturalist observations: 20665
- Wikidata: [Q1893881](https://www.wikidata.org/wiki/Q1893881)
- iNaturalist taxon: [126712](https://www.inaturalist.org/taxa/126712)

## Names

- en: Eastern Dobsonfly
- es: Mosca de pescar oriental
- fr: Corydale cornu

## Countries with the most observations

US (18677), CA (804)

## Summary

The eastern dobsonfly, Corydalus cornutus, is a large insect in the Corydalidae family. The larvae are known as hellgrammites and are among the top invertebrate predators in the streams in which they live, and are used by anglers as bait.

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

## Photo

![Eastern Dobsonfly](https://animalchecklist.com/img/animals/eastern-dobsonfly/medium.jpg)

Photo: Kristi Zoebelein · CC0 · inaturalist — https://www.inaturalist.org/observations/150786715

## Machine access

`GET https://animalchecklist.com/api/v1/animals/eastern-dobsonfly?lang=en` — see [openapi.json](https://animalchecklist.com/openapi.json).