May beetles

(Phyllophaga spp.)

Overview

Phyllophaga is a large genus of scarab beetles commonly known as May beetles or June bugs. There are about 840 Phyllophaga species worldwide, more than 400 species in North America north of Mexico, and at least 20 species in Minnesota.

May beetles are forestry pests. Adults feed at night on the foliage of many plants, including trees and shrubs. When they appear in large numbers, they can cause heavy defoliation in woodlots and at forest edges. The larvae, called white grubs, feed in the soil on the roots of grasses and woody plants. They cause significant damage to seedlings and young trees in plantations and nurseries.

 
May beetle (Phyllophaga sp.)
Photo by Luciearl
 
Description

Adults are orangish-brown to dark brown. Most have little or no hair on the upper surface.

At least 20 Phyllophaga species occur in Minnesota, and many very similar in appearance. They are distinguished by

  1. the shape of the plate (clypeus) on the face,
  2. the number of antennal segments,
  3. the relative length of each of two spurs on the hind tibia of the male,
  4. the placement of a tooth on the claws at the end of each leg of both males and females, and
  5. details of the male genitalia.

Unfortunately, none of these characters are visible most photos. For this reason, identification from photos is usually made only to the genus level.

Distribution

Distribution Map

 

Sources

24, 27, 29, 30, 82.

6/9/2024    
Taxonomy

Order

Coleoptera (beetles)

Suborder

Polyphaga (water, rove, scarab, long-horned, leaf, and snout beetles)

Infraorder

Scarabaeiformia

Superfamily

Scarabaeoidea (scarabs, stag beetles, and allies)

Family

Scarabaeidae (scarabs)

Subfamily

Melolonthinae (June beetles)

Tribe

Rhizotrogini

   

Subordinate Taxa

Subgenus Chlaenobia

May beetle (Phyllophaga vexata)

 

Subgenus Cnemarachis

Cuban May beetle (Phyllophaga bruneri)

 

Subgenus Phyllophaga

Clemens’ May beetle (Phyllophaga clemens)

crenulated chafer (Phyllophaga crenulata)

diurnal scrub June beetle (Phyllophaga okeechobea)

Drake’s chafer (Phyllophaga drakei)

eastern chafer (Phyllophaga balia)

Elizoria June beetle (Phyllophaga elizoria)

elongate June beetle (Phyllophaga elongata)

fiery chafer (Phyllophaga fervida)

fluffy chafer (Phyllophaga ilicis)

forest-ogre June beetle (Phyllophaga anxia)

fraternal chafer (Phyllophaga fraterna)

hairy chafer (Phyllophaga hirticula)

hairy-fronted chafer (Phyllophaga vilifrons)

inverted chafer (Phyllophaga inversa)

lanceolated chafer (Phyllophaga lanceolata)

lesser June beetle (Phyllophaga futilis)

long-spined chafer (Phyllophaga longispina)

margined chafer (Phyllophaga marginalis)

May beetle (Phyllophaga albina)

May beetle (Phyllophaga benwarneri)

May beetle (Phyllophaga bipartita)

May beetle (Phyllophaga congrua)

May beetle (Phyllophaga corrosa)

May beetle (Phyllophaga ephilida)

May beetle (Phyllophaga fimbripes)

May beetle (Phyllophaga forsteri)

May beetle (Phyllophaga horni)

May beetle (Phyllophaga implicita)

May beetle (Phyllophaga prunina)

May beetle (Phyllophaga sociata)

northern June beetle (Phyllophaga fusca)

oval June beetle (Phyllophaga ovalis)

rugose June beetle (Phyllophaga rugosa)

shaggy chafer (Phyllophaga hirsuta)

shiny chafer (Phyllophaga nitida)

Skelley’s June beetle (Phyllophaga skelleyi)

slender chafer (Phyllophaga gracilis)

southern Lake Wales Ridge June beetle (Phyllophaga panorpa)

turf chafer (Phyllophaga tristis)

Yemassee June beetle (Phyllophaga yemasseei)

Young’s June beetle (Phyllophaga youngi)

 

Subgenus Phytalus

May beetle (Phyllophaga bilobatata)

May beetle (Phyllophaga blanda)

May beetle (Phyllophaga georgiana)

May beetle (Phyllophaga obsoleta)

May beetle (Phyllophaga sonora)

May beetle (Phyllophaga trichodes)

 

Subgenus Tostegoptera

brown scarab beetle (Phyllophaga lanceolata)

May beetle (Phyllophaga squamipilosa)

   

Synonyms

Abcrana

Chirodines

Clemora

Cnemarachis

Endrosa

Eugastra

Gynis

Gynnis

Tostegoptera

Trichestes

   

Common Names

chafers

June beetles

June bugs

May beetles

 

 

 

 

 

 

 

 

 

 

 

 

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Brian Tasky

May beetle (Phyllophaga sp.)  

May beetle (Phyllophaga sp.)

Luciearl

May beetle (Phyllophaga sp.)  

 

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Camera

Slideshows

June Bugs (Phyllophaga)
Andree Reno Sanborn

June Bugs (Phyllophaga)

May-June Beetles - Phyllophaga sp.
Joseph Berger

May-June Beetles - Phyllophaga sp.
About

Melolonthinae (May Beetles and Junebugs)

 

slideshow

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Other Videos

May Beetle (Scarabaeidae: Phyllophaga) Locomotion
Carl Barrentine

About

Published on Apr 25, 2010

This scarab beetle was photographed at Grand Forks, North Dakota (24 April 2010).

How to identify a cockchafer May bug | Natural History Museum
Natural History Museum

About

Published on May 22, 2012

It doesn't only fly in May and it isn't actually a bug, but the cockchafer can be seen at the moment and is pretty easy to spot, being the UK's largest chafer beetle.

When seen for the first time, an adult cockchafer can cause a bit of a stir and lots of people find them a little worrying, according to Stuart Hine of the Natural History Museum's Identification and Advisory Service (IAS).

If you spot anything unusual, get it identified by Museum experts and other enthusiasts on our Identification forums: http://www.nhm.ac.uk/identification

June bug facts you might not know
RovePestControl

About

Published on Aug 2, 2016

http://www.rovepestcontrol.com/50off

June bug facts you might not know
https://www.rovepestcontrol.com/june-bug-facts-you-might-not-know/

We have been having an unusually long and active June Bug season this summer and have been getting a lot of questions about them, so here are a few June Bug facts and information you might not know!

June Bug Facts

June Bugs get their name primarily because most often it is when their eggs start to hatch. It most often ranges from end of may to end of June/early July. June Bug’s larva can live from 2-4 years underground before becoming full grown adult beetles.

These bugs are frequently viewed as pests because they do damage both as larva and as adult beetles. There are several species of beetles that are considered “June Bugs” but the most common ones are the Japanese Beetle, Chafer Beetle, Green June Beetle, and Ten Line June beetle.

What June bugs eat

June bug larva tend to do damage to plant roots as well as grass. They like to eat roots in several plants, like trees, grass, and grains. The larva also really likes to eat plants you may have in your gardens like berries and potatoes, tomatoes, etc. You may have a larva problem if you are seeing several brown patches in your yard.

The grass will often peel off very easily without much effort if you have a significant issues with June bug larva. An interesting way to check if you may have an issue is you can flood the affected areas with water and then the larva tends to come up to the surface.

Adult June bugs eat the foliage on different plants and shrubs. They have been known to feed on well over 300 different species of plants. Many of these pests are very active at night and are attracted to lights. If you have yard lights June bugs are often found around them.

Common June Bug treatments

There are a couple options to get rid of June bugs, you can either make pest’s shelter less easy to live in or what they eat less desirable, the later is often the best solution. In other instances strategic pruning of the plant or surrounding plants may produce the desired result. Depending on how far along the season is, you may need to focus on the adult stage vs controlling the larval stage.

At certain times of the year, products that move through tree, shrub, and flower internal systems may be injected into the soil in dosages that will protect the plant from invading and attacking insects without threatening the health of the plant. Other times the treatment is more focused on the larva. We suggest reaching out to a pest control specialist to determine what the best route would be for your pest issues.

Have a question for us? Be sure to reach out on Facebook: www.facebook.com/RoveMinnesota

P.S. Have a pest issue? As a first time customer with Rove Pest Control –
Click Here to get $50 off your initial service!
http://www.rovepestcontrol.com/50off
Did you get value from this post on, June bug facts you might not know, Please retweet below!

May Beetle
Shrikant Kelkar

About

Published on May 16, 2017

Shrikant Kelkar's video clip taken at Kalwa, Maharashtra, India in March 2017

Family : Scarabaeidae ; Subfamily : Melolonthinae ; Genus : Phyllophaga OR

Binomial Name : Leucopholis lepidophora ; Family : Melolonthidae

 

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Visitor Sightings
 

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Brian Tasky
6/8/2024

Location: Hermantown, MN

May beetle (Phyllophaga sp.)
Nicola Prehn
6/5/2019

Location: MN 56063 (Blue Earth County)

Luciearl
1/4/2018

Location: Lake Shore, MN

May beetle (Phyllophaga sp.)
MinnesotaSeasons.com Sightings

 

 

 

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Created: 1/7/2018

Last Updated:

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