What's That Bug? does not endorse extermination

Chinese beetle
November 10, 2009
Hello,
I saw these on a (low) hill path in Zhongshan in China yesterday and wondered what they are? Is it mother and child or a male/female couple? Thanks
Neil
Zhongshan city, GuangDong, CHina

Chinese Longhorn Beetles

Chinese Longhorn Beetles

Hi Neil,
The markings on your beetles are different than those on examples of Mango Stem Borers, Batocera rufomaculata, that we have posted previously, but there are enough similarities for us to question if this is perhaps a regional variation.  Your beetles might be a closely related species in the genus Batocera, like perhaps Batocera davidis, or perhaps a member of another genus in the Long Horned Borer family Cerambycidae.  In our opinion, this is a couple.  Perhaps one of our readers can assist in this identification.

Update from Karl
Hi Daniel:
They are definitely a Batocera species (Cerambycidae: Lamiinae: Batocerini) but not B. rufomaculata. There are several similar looking species in Asia, but as far as I can tell only B. davidis and B. rubus occur in China. The B. davidis photo that you linked to does look very much like the ones in Neil’s photo, but most images of B. davidis do not show the prominent white spots on the elytra. This could be an example of regional variation, or it could be another case of misidentified photos on the web. On the other hand, there are numerous postings of B. rubus and they all appear very similar. For comparison, the ‘Siam Insect-Zoo & Museum’ site has excellent photos and descriptions of all the species mentioned here. I think I have to go with B. rubus. Coincidentally, I also came across a photo of mating B. rubus (subspecies mniszechi) from the Philippines that is remarkably similar to the one posted by Neil. Regards.
Karl

What's That Bug? does not endorse extermination
Location: China

3 Responses to Longhorn Beetle from China: Batocera rubus

  1. tan2 says:

    This specie is likely Batocera rubus, or rubber root borer in English.

    http://www.zin.ru/ANIMALIA/COLEOPTERA/eng/ziarko2.htm

  2. Dave says:

    These are edible as adults [probably as larvae also.] I had one at a banquet in Chiang Mai, Thailand, though it might not have been B.rubus but another member of the genus.
    This touches on the intriguing subject of “ethno-names,” meaning the identification system by which traditional practitioners of entomophagy identify which species or individual insects (or other foods, of course) are good to eat.

    Best,
    Dave
    http://www.smallstockfoods.com

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