Today’s cartoon was inspired by a recent paper I co-authored. Its main character is a rare Megachile species. I had a pleasure to watch females carrying leaf pieces. Most of Megachile species in my region cut circular leaf fragments and use them to line their nests (hence their common name – leafcutter bees). If you see a plant with numerous regular holes along the leaf edges, you can tell a Megachile female was there. I remember seeing a post on social media where a lady complained that the bees cut almost all leaves of her favourite rose. I know quite a few people who would happily allow the bees take all the plants from their garden. Usually, however, leafcutter bees don’t cause any obvious damage, and live in our gardens unnoticed by most.
Mimicry is a phenomenon in which one species becomes, in the course of evolution, similar to another. One of the classical examples are bumblebee-mimic or wasp-mimic hoverflies. But how do we know that a hoverfly mimics a bee or wasp, and not the other way around?
The type of mimicry we see in hoverflies evolved to give protection against predators. The distinctive appearance says: don’t eat me, I can hurt you. The weapon of bees and wasps is their stinger. Hoverflies are harmless, and they get protection from being confused with stinging insects by predators. Therefore, bees and wasps are models, and hoverflies are mimics, not the other way around.
This post was created in collaboration with The Pollinator Academy, a great resource of knowledge about taxonomy of European bees, hoverflies and butterflies.
Some phenomena can be studied only when you can recognize individuals of the same species. For example, red mason bees often usurp each other’s nests. If you can’t tell them apart, you have little chance of knowing that the bee provisioning a nest is not the same as yesterday. Have you ever wondered how scientists tell one bee from another in their experiments?
Last week, I was observing bees in a garden. Among other plants, there were two flowers, looking more or less the same to me. One was visited by quite many bees, and the other was abandoned. After a moment, I saw a male bee zooming around it. Maybe it was a coincidence, but males of some bee species are well known for their aggressive defence of their territory. Maybe the other bees just didn’t want trouble.
Today is a special day! Best wishes to all bees and bee lovers!
Would you like to give something to non-honey bees on this occasion? You’ll probably see lots of posts featuring the managed honeybees as the only species celebrating today. Leave comments informing people about all the non-honey rest!
I’d like to show you what I drew lately. It’s not a comic but there are cartoon bees on it. Let me know if you’d like to see more such drawings. I have some on my computer, and plans for drawing more in the future.
A friend of mine has a button pin machine and I got a pin with the large carpenter bee. It goes with me everywhere on my backpack. There is a Polish common name, in addition to the scientific one.
Twisted-wing insects (Strepsiptera) are extraordinary parasites. They parasitise various other insects, bees among them. Because Strepsiptera parasitising bees belong to Stylopidae family, affected bees are called ‘stylopised’. The parasite has an extraordinary life cycle. The female spends her whole life inside the host’s abdomen, with only her head sticking out from between tergites. Male lives the same way only up to pupation, and adult males are extremely short-lived: they die after a few hours. They have one pair of fan-shaped wings.
The parasite causes extensive changes in the host’s appearance and behaviour. Stylopized bees don’t reproduce, and they look as intersexes (males acquire some female morphological traits, and vice versa), which makes them harder for entomologists to identify to the species level.
This post was published on Instagram in cooperation with The Pollinator Academy. Iโm happy to be involved in this initiative. If you are interested to learn about European pollinator species, in particular bees, hoverflies and butterflies, and recognizing them, check out the PA website!
The field season doesn’t leave me much time to draw but I didn’t want to skip a Monday cartoon, so a quick drawing about bees’ violent mating practices. When you look at males trying to mate with a female, you can often see she is not happy and trying to throw him off her back. In human standards it looks like absolutely unacceptable behaviour… but think about ducks where males are even more aggressive in forcing copulation. A female can be injured or drowned in the process!
Remember not to apply ethical norms of humans to animals, or vice versa ๐
Do you know those silly quizzes in social media? I made one for you, and it’s about dating. Let me know if you need more illustrations in this series.
Let’s go:
Do you know these cute little fluffy bees who mercilessly bully all other bees coming into their territory? The European wool carder bee (Anthidium manicatum) males are larger that females and have sharp mandibles and spines on the abdomen – all that helps them fight. Nobody stays on their territory for long – except for the females of their own species.
When a female of the ivy bee (Colletes hederae) comes out of her natal nest, she is immediately surrounded by the crowd of males ready to mate. In all this chaos, she somehow manages to mate with only one male. In solitary bees, mating balls are a more common phenomenon, as are females mating only once in a lifetime. I have three other cartoons about mating balls: here, here and here.
In bees, males don’t actively help in brood care – with some notable exceptions. Male of Ceratina nigrolabiata guards nest entrance in order to keep parasites off when the female is away collecting pollen. Cute, isn’t it? I had a cartoon about these bees here.
And the last are honeybees making a guest appearance on the Non-honey bees blog. I hope nobody identifies with them in their love life! It’s really, really creepy. Honeybee queen mates multiple times. Drones, on the other hand, die during mating – their genitalia explode and detach from their body, part of them remaining attached to the queen’s abdomen.
The common cuckoo (Cuculus canorus) is well known for its distinctive call, and for the fact that females don’t build their own nests but lay eggs in the nests of other bird species. Since the 17th century, little figurines of cuckoos have been placed in a special type of clock. At every full hour the bird pops out of a cuckoo clock, and the number of its calls indicates the time.
What does this have to do with bees? There is a group of species whose reproductive strategy is almost exactly the same. They are called parasitic bees or cuckoo bees. In most species, the female sneaks into the nest of her host (another bee species) and lays her eggs there. Some species, like cuckoo bumblebees, invade a colony of the host and replace the queen in her function. About 25% of bee species in Poland are cuckoos, and I’m very fond of them. They have cool strategies that help them to get into the host’s nest and hide their eggs, and often don’t resemble a popular image of a bee at all. In the cartoon you see a Nomada. Members of this genus have little hair and vivid colours, and resemble wasps.
This cartoon was inspired by a conversation with a friend who prefers to stay anonymous (thank you! ๐ ).
This post was published on Instagram in cooperation with The Pollinator Academy. Iโm happy to be involved in this initiative. If you are interested to learn about European pollinator species, in particular bees, hoverflies and butterflies, and recognizing them, check out the PA website!
As on a black-and-white cartoon it may be hard to tell the species, I’ll tell you that it’s Colletes cunicularius – a spring solitary bee common in Europe, and Sphecodes albilabris – its cuckoo.
Many species of cuckoo bees sneak into the host’s nest when it’s open, to lay their eggs inside. If they encounter their host, it may pay no attention to the intruder (I had a cartoon about it) or a fight may start. Sphecodes are quite aggressive and they often kill the host.