Friday, January 20, 2012

Sand Wasp (The Bembicini) in Sumatra Indonesia


All these photos were taken in Bengkulu Sumatra Indonesia. When i visited one beach in Bengkulu, this wasp really took my attention because of its behavior. It was flying over the grass flowers when i first saw it. I thought it was some kind of honey bee. But when i followed where it flew next, i just realize that this one was not a honey bee. It was nesting at the sand near the grass flower plants. From the reference i read, i think this is from the genus of Bicyrtes with the common name is Sand wasp.

Below i present the behavior of this wasp when it was doing a "back home".

PART 1: The sand  wasp back to its nest and then it "close" the "door" of its nest. The closing door cannot be recognized easily because eventually it will resemble the surrounding surface of the sand.




The door is closed. The humid sand as the door will eventually get dried and resemble to its surrounding


PART 2: Another sand wasp while holding its prey landed to the sand near the first hole. It really no hole  there on the sand when it landed. But, it only dug a little bit, then the hole to its nest open. What amazed me was, how did it know where its nest, because the hole to its nest was closed and resemble any other place on the sand. 







Taxonomy:
Kingdom: Animalia - Animal
Phylum: Arthropoda - Arthropods
Class: Insecta - Insects
Order: Hymenoptera - Ants, Bees, Wasps and Sawflies
No Taxon: Aculeata - Bees, Ants, and Stinging Wasps
No Taxon: Apoid Wasps (Apoidea)- traditional Sphecidae
Family : Crabronidae
Subfamily : Bembicinae
Tribe : Bembicini - Sand Wasps
Subtribe : Bembicina
Genus : Bicyrtes


Reference:
http://bugguide.net/node/view/6140/tree

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