Wednesday, January 25, 2012

Metallic Green Bee in Sumatra Indonesia






Those photos above were taken in Bengkulu Sumatra Indonesia. Firstly i thought it was some kind of wasp, but after i browsed through the internet, i believe it is some kind of bee. This bee is small, only about 5 or 6 mm long. All body except legs and antennae is covered with metallic green yellow color. It looks like that the surface of it is rough. The abdomen has some black narrow bands. 
From the some reference i have read, i really face the difficulty, not only to find the species name of this bee, the genus itself is still mistery to me.
From http://nathistoc.bio.uci.edu/hymenopt/Agapostemon.htm  the last picture in this link shows the one that resemble the speciment above. It is from genus of Agapostemon family of Halictidae. The different is that the sample of agapostemon sp looks more hairy than above bee.
From  http://bugguide.net/node/view/346989 the species above resemble the species of Augochlora pura except for the size which is bigger then the specimen above and the shape of the eyes. Augochlora pura is from the genus of  Augochlora family of Halictidae.
From  http://en.wikipedia.org/wiki/Sweat_bee   it is state that "Halictidae, a large family of bees that are common in most of the world except Australia and Southeast Asia, where they are only a minor faunistic element". This what make me to look for other possibilities.
The last link i have got lead me to the family of Apidae from genus of small carpenter bee (Ceratina) subgenus of Zadontomerus. It can be seen in this link http://bugguide.net/node/view/177910/bgimage with the closest species is Ceratina stenua.
The discussion in /r/whatsthisbug has suggested that this species is from genus Ceratina under sub genus Pithitis.

Scientific Classification:

Phylum : Arthropoda - Arthropods
Class : Insecta - Insects
Order : Hymenoptera - Ants, Bees, Wasps and Sawflies
No Taxon : - Bees, Ants, and Stinging Wasps
No Taxon : Anthophila (Apoidea) - Bees
Family : Apidae - Cuckoo, Carpenter, Digger, Bumble, and Honey Bees
Subfamily : Xylocopinae - Carpenter Bees
Genus : Ceratina - Small Carpenter Bees
Subgenus : Pithitis

Acknowledgment:
Fellows of /r/whatsthisbug :
1. Alchisme


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