the essentials in brief
- Cockchafer and June beetle differ in size, color, antenna shape and hairiness.
- In direct comparison, a cockchafer is larger, differently colored, has fan-shaped antennae and thinner hair.
- The scientifically correct name of the June beetle is ribbed curl beetle (Amphimallon solstitiale).
Cockchafer vs June beetle - comparison
It is hardly surprising that nature lovers and hobby gardeners often lump cockchafer and junior beetle together. Both beetles look very similar at first glance, because cockchafer and juniper beetle belong to the scarab beetle family (Scarabaeidae). Only on closer inspection do noticeable differences become apparent that make a direct comparison useful. The following table is peppered with tips on how to tell cockchafer and junior beetle apart:
also read
- Recognize and fight June bug grubs
- Cockchafer in portrait - lovable grumpy with great hunger
- How can cockchafer grubs be identified and controlled?
| differences | Cockchafer | June beetle |
|---|---|---|
| botanical name | Melolontha melolontha, M. hippocastani | Amphimallon solstitiale |
| Common name | Field cockchafer, forest cockchafer | Ribbed curl beetle |
| size | 2.2-3.5 cm | 1.4-1.8 cm |
| colour | red brown, dark brown, black | leather yellow to light brown |
| drawing | white spots laterally behind | no |
| Hairiness | close fitting, white, blotchy | bristly, opaque, brown |
| sensor | fan-shaped, distinctive | tripartite, inconspicuous |
| Main flight time | May | June and July |
| activity | diurnal | crepuscular and nocturnal |
Regardless of the common family name scarab beetle, there are clear differences between cockchafer and juniper beetle. These deviations are examined in more detail below:
Appearance
Cockchafer are red-brown on top and black on the abdomen
The cockchafer is characterized by the different colors of the individual body parts. The elytra are red-brown to dark brown. The head, pronotum and the underside of the trunk, however, are black. A striking drawing on the flanks of the abdomen in the form of white, triangular spots reminiscent of a zigzag pattern is striking. Light hair in places is just visible on the cockchafer or can be felt with the finger.
The June beetle comes with a uniform, light brown body color. He also dispenses with the concise decoration with lateral zigzag lines. However, a June beetle cannot completely resist some decorative ornaments. Three raised ribs on each wing are its trademark, to which the ribbed curlew beetle owes its name. Another outstanding difference to the cockchafer is the pronounced hairiness that covers the entire beetle.
Are there any doubts about the comparison of cockchafer vs junior beetle? Then take a look at the feelers. The cockchafer proudly carries its awe-inspiring antennae with fan-shaped clubs that boast six to seven lamellas. The number of lamellas reveals the beetle sex. Six lamellas on the fan probe identify a female. If you count seven lamellas on the antennae, it is a male. In contrast, the three-part, small antennae of the ribbed curl beetle appear very modest.
Main flight time and activity
June bugs do not fly out to search for a bride until June
June bugs take it slower than cockchafers. When adult ribbed curl beetles soar through the air on their wedding flight in June and July, cockchafer beetles have long since ended their family planning. For field cockchafer and forest cockchafer, the main flight time extends from the end of April to the end of May. From time to time in June there are still some stragglers among the cockchafer, which are mistakenly called June beetles.
Furthermore, June beetles like to oversleep and loiter the day and only start flying at dusk. In contrast, cockchafer are enthusiastic early risers and do most of the beetle duties in daylight.
Larvae in a uniform look
With regard to the cycle and appearance of their larvae, there is no noticeable difference between cockchafer and junior beetle. Fertilized females lay their eggs in the ground, in close proximity to all kinds of plants. Immediately after hatching, the caterpillars start eating by eating the roots. The appearance is characterized by the typical grub shape, which gives no indication of the later species of beetle. Each grub completes a cycle of 3 to 5 years, has a cylindrical body with a brown head and takes a hunched posture. Only when the finished beetles emerge from the ground after two or three hibernations and pupation does it become clear whether it is a cockchafer or a June beetle.
Digression
Ladybug - symbol of luck and beneficial insect
Ladybugs don't have much in common with cockchafer
Do not confuse cockchafer (Melolontha) with ladybird (Coccinellidae). The commonality of both beetles is limited to the similar naming in everyday usage. To list all the differences between cockchafer and ladybug is beyond the scope of this guide. In fact, ladybirds are a separate family of insects with 6,000 species worldwide. The colorful seven-point ladybird with bright red wings is popular in Europe as a beneficial insect and revered as a symbol of luck. Hobby gardeners who are close to nature warmly welcome ladybugs because of theirs Larvae Eat tons of aphids. An informative article on Wikipedia gives a detailed insight into the wonderful world of ladybugs.
Differences from rose chafer
Cockchafer and rose beetle are distantly related to each other as family members of the scarab beetle. In a direct comparison of adult beetles, the first glance gives certainty about their identity. With a dazzling gorgeous dress, rose beetles are a feast for the eyes. European species listen to picturesque names, such as shiny gold rose beetle (Cetonia aurata) or bronze green rose beetle (Protaetia lugubris). Have a look at Wikipedia in the diverse, informative articles with many pictures of breathtakingly beautiful rose beetles.
In contrast to the glamorous rose beetle, the brown cockchafer is not just a cinderella. Rose beetles feed primarily on nectar, pollen and tree sap. Every now and then the noble beetle beauties nibble on the blossoms of roses, which does not cause any significant damage. Sometimes the blossoms of cherry, plum, elder and hawthorn to discover minimal traces of tiny beetle teeth. Cockchafer, on the other hand, target the foliage of trees and bushes, which can lead to defoliation when there are local masses.
Rose beetles are under protection
Rose beetles do not look similar to May and June beetles
As already explained in the comparison of cockchafer and juniper beetle, larvae cannot be distinguished from scarab beetles. This circumstance has tragic effects on the harmless rose beetle. Although his Grubs If they only feed on sludge and decomposing organic substances, they are often mistaken for cockchafer larvae and destroyed. In the course of this, some of the most beautiful rose chafer species have come under pressure. For this reason, the Federal Nature Conservation Act lists the shiny gold rose beetle as a protected species so that it does not end up on the red list of seriously threatened species.
Tips
Cockchafer plagues with widespread destruction of forests and crops are a thing of the past. In the worst case, there is a high incidence of cockchafer locally when the larvae nest under the lawn or in the vegetable patch. Nematodes of the genus Heterorhabditis have proven effective as effective control without the use of poison. The roundworms parasitize and destroy every voracious grub within 2 to 3 days.
frequently asked Questions
What is the difference between cockchafer and ladybug?
Both beetles are not closely related. Rather, they are two completely different families of insects. The two beetles can be clearly distinguished visually. Cockchafer have inconspicuous brown wings. Ladybugs prefer a colorful appearance with red, yellow, brown or shiny black wings, which are often decorated with black, yellow or red dots. In addition, a cockchafer with a length of 25 to 30 mm is a giant compared to the ladybug. The popular seven-point ladybug, for example, has a body length of 5 to 8 mm.
Do cockchafer only fly in May?
No. Cockchafer are popularly known because their main flight time is May. After a mild winter, the beetles often leave their winter quarters as early as April and go in search of food and a suitable partner. Until June, flying cockchafer can be observed, which like to attack the leaves of trees. These late bloomers are sometimes referred to as June beetles, although the ribbed curl beetle actually bears this name.
Are cockchafer and June beetle related?
Yes, because both beetles belonged to the scarabaeidae insect family. This fact is reflected in a similar appearance, which at first glance could be confused. Of course, there are marked differences between cockchafer and junior beetle, which led scientists to divide both beetles into two different genera. The June beetle is the so-called ribbed curl beetle (Amphimallon solstitiale), which occurs between June and July. In contrast to the cockchafer (Melolontha), a June beetle is smaller, has threefold antennae and thick hair.
Are rose beetles harmful to roses?
With their dazzling appearance and a stately size of 1.5 to 3 centimeters, rose beetles cannot be overlooked. If the magnificent beetles frolic on your roses, there is no need to worry. The lovable Brummers are primarily after sweet nectar and nutritious pollen. Every now and then a rose petal gets between the teeth, which does not have any serious consequences for the plant.
Tips
The compost heap becomes a treasure trove when you discover a fat grub in it. Mostly it is a larva of the rose beetle. With a little luck, you might hold the grub one Rhinoceros beetle in hands, also an inestimable, rare jewel of nature. Please put the larvae back in the compost so that they can end their cycle and delight us as dazzling beetle beauties or imposing beetle giants.
