ColeopteraCurculionidae

Green Leaf Weevil

Phyllobius maculicornis

This record describes Phyllobius maculicornis (species). Recorded family: Curculionidae. Recorded order: Coleoptera.

Identification and Appearance

Green Leaf Weevil - Phyllobius maculicornis

One of many similar green weevils. It has elongate scales and a covering of fine, pale setae. It has a tooth on the femora which are dark coloured under the scales. The elytral striae are clearly visible (lacking scales) and the apex of the scape is dark. It is very similar to Phyllobius pomaceus but can be identified with a lens through the combination of elongate scales and dark, toothed femora. ( P. pomaceus has oval scales). See our ID Aid below. Phyllobius is a genus of broad-nosed weevils that are commonly found on low herbage and in trees during spring and summer. Most are covered in metallic green scales that give them a very attractive appearance. There are 9 species and most look similar but they can be separated by carefully comparing the range of features shown in the table below, either under a binocular microscope or with a x20 hand-lens. Phyllobius weevils can be distinguished from the similar genus Polydrusus by looking where the antennae emerge from the rostrum. In Phyllobius the antennae emerge from the top whilst in Polydrusus they are positioned at the side. When looking directly down on the beetle it is usually clear to see. Unless identified by a recognised expert, photographic evidence is required and the specimen should be examined with a microscope. In the comments box, state the key or ID method used. Note the beetle's size and describe the identifying characters. It is advisable to retain the specimen in case further checks are needed. Widespread and fairly common in Britain. Eakring Birds has a useful introduction to Phyllobius weevils. No additional images available for this species.

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Genus
Phyllobius

Imported taxonomy record. Source availability varies; see the source references and editorial policy below.

Habitat and Range

Habitat

It is found mainly in broadleaf trees.

Seasonal Activity

April onwards.

Additional species information

Recorded status

Widespread and fairly common in Britain.

About Primitive Winged Insects: the wider group

Order-level background for Coleoptera, the group containing Phyllobius maculicornis. Species-specific details appear above.

Group overview

Coleoptera is the largest order of insects with over 400,000 described species, representing ~25% of all known animal species and ~40% of all insects. In the U.S. alone, nearly 30,000 beetle species have been identified.

Ecological role of the group

Beetles are prominent decomposers, especially in forests, breaking down dead wood and recycling nutrients. As predators, they reduce populations of pest insects. Many species are also important pollinators of flowering plants.

Economic and practical significance of the group

Beetles have major economic significance: leaf beetles (Chrysomelidae) and weevils (Curculionoidea) are among the most destructive agricultural pests globally, costing billions annually, while predatory species like ladybugs provide natural pest control.

Recorded sources for this group: Britannica, Smithsonian, NCSU Entomology. Imported estimates may describe particular regions or reporting periods.

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Frequently Asked Questions About Green Leaf Weevil

What is Green Leaf Weevil?

Green Leaf Weevil (Phyllobius maculicornis) is a species in the family Curculionidae, within the order Coleoptera.

Where is Green Leaf Weevil found?

Habitat: It is found mainly in broadleaf trees.

When is Green Leaf Weevil active?

Green Leaf Weevil: seasonal activity - April onwards..