Guardian Nature School Team Contact Blog Project Noah Facebook Project Noah Twitter

A global community of nature enthusiasts
photographing and learning about wildlife

Join Project Noah!
nature school apple icon

Project Noah Nature School visit nature school

Square-headed Wasp

Ectemnius sp.


Black insect with yellow bands on thorax and legs. Length is about 10mm. Looks like a shortened version of a Black and Yellow Mud Dauber. Classification » Ants, Bees, Wasps and Sawflies (order Hymenoptera) » suborder Apocrita » Aculeata - Bees, Ants, and Stinging Wasps » Apoid Wasps (superfamily Apoidea) - Traditional Sphecidae » family Crabronidae Latreille, 1802 » Square-headed Wasps (subfamily Crabroninae) » tribe Crabronini » subtribe Crabronina » Ectemnius Dahlbom, 1845


Backyard garden, spotted on Gumamela (Hibiscus) leaves.


Sample Ectemnius sp image: Document containing Ectemnius spp. in the Philippines:

Species ID Suggestions

Sign in to suggest organism ID


Mark Ridgway
Mark Ridgway 7 years ago

:-) good name

@Argy, I found the ID as Ectemnius sp., a Square-headed Wasp. :)

Thanks Argy! Will look more IDs under wasp :)

Mark Ridgway
Mark Ridgway 8 years ago

amazingly big round head though

Mark Ridgway
Mark Ridgway 8 years ago

I vote for wasp. Very pretty.

Laguna, Philippines

Spotted on Jan 28, 2013
Submitted on Mar 3, 2013

Related Spottings

Sphecid Wasp Square-headed Wasp Square-headed wasp Digger Wasp

Nearby Spottings

Meadow Spittlebug Common Male Fern Brown-winged Stink Bug Striped Mealybug
Noah Guardians
Noah Sponsors

Join the Project Noah Team Join Project Noah Team