Hylamorpha elegans

Hylamorpha elegans · Order: Coleoptera · Family: Scarabaeidae

Damages trees, gardens or crops. It damages crops such as grasses and cereals and defoliates trees like Nothofagus.

Source: Wikipedia

Hylamorpha elegans
Photo: Rodrigo Fernández, CC BY-SA 3.0

The beetle is 12 to 18 mm long and 6 to 11 mm wide, with a long body. Adults are green with possible silver or bronze shine, and males have glossy green legs while females’ legs are less shiny. Larvae live in soil feeding on grass and cereal roots, and adults can strip leaves from Nothofagus trees, making it a serious agricultural and forest pest.

Source: Wikipedia

How to recognize it

The head, pronotum and wing covers range from light to dark green, sometimes showing shiny silver or bronze reflections, and males have all-green glossy legs while females have green legs with less shine.

Source: Wikipedia

Size

It measures about 11.8 to 18.2 mm in length and 5.8 to 10.8 mm across the shoulders.

Source: Wikipedia

How to get rid of it

Understanding their odorant-binding proteins and chemoreceptors helps identify chemicals that could be used for pest management.

Source: Wikipedia

Where it lives

It is native to South America, especially Chile and Argentina.

Source: Wikipedia

Life cycle

The larval stage develops in the soil’s root layer, and after mating females lay eggs on preferred host plants like red clover.

Source: Wikipedia

When you see it

The species is mainly nocturnal and is often seen foraging at night.

Source: Wikipedia

Where it comes from

Its native range is Chile and Argentina in South America.

Source: Wikipedia

More photos

Questions people ask

How can I manage Hylamorpha elegans?

Researchers are studying its odorant-binding proteins to find compounds that attract or repel it for better pest control.

Source: Wikipedia

Same family (Scarabaeidae)

Sources

  • Wikipedia: https://en.wikipedia.org/wiki/Hylamorpha

Look it up elsewhere: GBIF · iNaturalist · BugGuide · Wikipedia

Text written 2026-10-23 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-23.

How this page works

This is one bug's fact sheet. The colored box at the top says whether it is dangerous. Sections below cover how to recognize it, whether it is a pest, and how to deal with it. The US map shows which states have records; tap a state to see other bugs there.

Every fact on Bug FAQ comes from a named source (university extension sites, government agencies, GBIF, iNaturalist, Wikipedia). The source is linked next to each section. If we have no source for something, we leave it out.