What's That Bug? does not endorse extermination

Help to identify a Black/yellow, Beetle looking Bug
August 1, 2009
Recently (July 31st), a friend of mine took the photo below of a six legged insect, body about 6 cm long, shiny blue-black exosketon, big yellow square flag on its back, and the most amazing feature: the yellow-hooked antennae. Any clue as to what it is?
Ho Chi Minh City, Vietnam

Unknown Longicorn from Viet Nam

Pachyteria dimidiata from Viet Nam

Hi Harley,
This is a Longicorn Beetle in the family Cerambycidae, but we are uncertain of its exact identification.  It resembles, both in structure and coloration, a species from North America, the Elderberry Borer, Desmocerus palliatus, in the tribe Desmocerini and the subfamily Lepturinae, the Flower Longhorns, and it is quite possible that the two beetles are closely related.  The Elderberry Borer, which lacks the striking yellow antennae, may be viewed on BugGuide.  Hopefully, one of our readers will be able to assist us in the correct identification.  Just before hitting publish, we decided to check a lovely coffee table book, Living Jewels, given to us by our dear friend Monika Bielser from Basel Switzerland.  Low and behold, we found Pachyteria dimidiata from Malaysia on plate 29 and then found a photo posted online on God of Insects.  It is also represented on the Beetles of Thailand website.

What's That Bug? does not endorse extermination

One Response to Longicorn from Viet Nam: Pachyteria dimidiata

  1. […] Update from Karl This looks like Pachyteria dimidiata (Cerambycinae: Callichromatini), found throughout tropical and sub-tropical Asia from Iran to Borneo. In Thailand it is considered a wood boring pest on fruit and ornamental trees, particularly the Iron Wood Tree (Mimusops elengi); in fact the common name there appears to be the Mimusop Stem Borer. You can find another photo of this beetle (also from Vietnam) on WTB at: https://www.whatsthatbug.com/2009/08/01/longicorn-from-viet-nam-pachyteria-dimidiata/ […]

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