What's That Bug? does not endorse extermination

Subject: Four-Toothed Mason Wasp?

Location: Selangor, Malaysia
November 13, 2014 1:45 am
I found this one clinging (though it’s dead) to the curtain in the bedroom. The most similar insect I’ve been able to find via google is the four-toothed mason wasp, but it seems to differ quite significantly. What do you make of it?
We live next to a green area (a golf course), including a lake with a seemingly thriving ecosystem.
Thanks in advance!
Signature: Kind regards, Sofia

Possibly Solitary Bee

Megachilid Solitary Bee

Dear Sofia,
There is a superficial similarity between your Hymenopteran and the Four Toothed Mason Wasp, but we believe your individual is a solitary Bee.  We have not been able to identify it.  We will get a second opinion on our speculation that this is a bee.

We write to Eric Eaton
Hi Eric,
This looks like
to me.  Any opinion?
It is from Malaysia.  Thanks

Eric Eaton confirms our suspicion
You are correct.  I submitted the image to the Hymenopterist’s Forum on Facebook to see if anyone recognizes the species.  There are folks from all over the world on that group, so I expect we’ll have an answer shortly….

Karl makes a similar identification and provides some links to images
Hi Daniel and Sofia:
Based on the wing venation that is so clearly visible in Sofia’s excellent photo, I believe this has to be a Leafcutter or Mason Bee (Family Megachilidae). I wasn’t able to locate an image of this exact bee from Malaysia but I did find several very similar images of bees in the genus Megachile from Thailand, Australia and Kenya. Regards.  Karl

Thank you so much for looking into this! Now I’ve learned something new 🙂
I did suspect that the similarity to a four-toothed mason wasp was merely superficial, but my google searches were limited by my almost non-existent bug vocabulary and bug knowledge.
Best regards,

What's That Bug? does not endorse extermination
Location: Selangor, Malaysia
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