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#hymenoptera

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Albert Cardona

Another little curious creature landed on my keyboard. Seemed unusually interested in my enter and shift keys – one wonders, is it the salt from my sweat? Or the fat from my fingers?

Bombus pratorum, the early bumblebee.
inaturalist.org/observations/2
#iNaturalist #Hymenoptera #nativebees #entomology

iNaturalistBourdon des prés (Bombus pratorum)Bourdon des prés de Pembroke College, Cambridge, Anglaterra, GB le 7 mai 2025 à 12:17 par Albert Cardona. On my laptop’s keyboard
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Albert Cardona

If you dislike spiders you may be pleased to hear that spider wasps are out in force. Here, an Auplopus sp.: a wasp that hunts spiders. It paralyses them with its sting, then transports them into a nest and places an egg on them – upon hatching, the grub will eat the spider alive.

Spider wasps stand out for their pitch black colours, shiny eyes, occasional colourful white or red marks depending upon the species, and large hind legs with big spikes that it uses to transport the paralysed spiders. But above all they stand out for their behaviour: clasping their wings, moving in bouts, and drumming the surfaces they stand on (leaves, most often) with their antennae.

inaturalist.org/observations/2

iNaturalistAgélénie charbonnière (Auplopus carbonarius)Agélénie charbonnière en mai 2025 par Albert Cardona
#iNaturalist#Hymenoptera#SpiderWasps
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rsp

Megischus bicolor (Bicolored Crown-of-thorns Wasp). Notable features of this parasitoid wasp are the long "neck," enlarged and toothed hind femora, and teeth on the head (from where its name is derived). Although it appears wingless, they're there--just held tightly against the body. Females have an ovipositor that exceeds their body length--used to lay eggs in larvae of wood-boring beetles.

Detail of hind leg showing enlarged femur and notch.
Very long, thin wasp sitting on a leaf with antennae outstretched.
Closeup of head showing tubercles on top of head.
Closeup showing base of wings.
#insects#wasps#nature
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Albert Cardona

3 hours later the bumblebees had undertaken significant repairs of their nest entrance.

The size of the entrance is important to control, among other factors, the temperature. When too hot they’ll fan our air with their wings. When too cold they’ll shiver to warm it up. All in all to setup the optimal conditions for their brood.

inaturalist.org/observations/2
#iNaturalist #bumblebees #nativebees #Hymenoptera #entomology

iNaturalistBourdon des prés (Bombus pratorum)Bourdon des prés en avril 2025 par Albert Cardona. A few hours later the bumblebees have reconstructed their nest entrance, protecting the brood and...
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Albert Cardona

Bumblebee nest – accidentally revealed when lifting some cardboard. I’ve put it back as well as I could and committed that patch of the allotment to them for the reminder of the season.

inaturalist.org/observations/2

iNaturalistBourdon des prés (Bombus pratorum)Bourdon des prés en avril 2025 par Albert Cardona. Accidentally uncovered a bumblebee nest under some cardboard.
#iNaturalist#bumblebees#nativebees
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