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Bronze orange bug nymph Musgraveia sulciventris is a true bug in family Tessaratomidae with piercing and sucking mouthparts. These bugs live in forests, orchards and gardens in coastal areas. Feeding on plants belonging to the citrus family Rutaceae.<br />
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These bronze orange bugs are known for their ability to produce unpleasant chemicals when disturbed. They can squirt a foul smelling fluid that will burn human skin and cause great discomfort if it gets in the eyes.<br />
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This was one of a large grouping covering a single plant. It is a 4th or 5th instar nymph. <br />
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25 mm length<br />
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 Australia,Geotagged,Hemiptera,Musgraveia sulciventris,Pentatomoidea,Spring,Tessaratomidae,arthropod,fauna,insect,invertebrate,macro,new south wales Click/tap to enlarge Promoted

Bronze orange bug nymph

Musgraveia sulciventris is a true bug in family Tessaratomidae with piercing and sucking mouthparts. These bugs live in forests, orchards and gardens in coastal areas. Feeding on plants belonging to the citrus family Rutaceae.

These bronze orange bugs are known for their ability to produce unpleasant chemicals when disturbed. They can squirt a foul smelling fluid that will burn human skin and cause great discomfort if it gets in the eyes.

This was one of a large grouping covering a single plant. It is a 4th or 5th instar nymph.

25 mm length

    comments (5)

  1. Great find. Now we have to find an adult bug. Posted one year ago
    1. When I came to identify this sighting Ernst, I saw that there are many more nymph observations than adults. Now I wish I'd spent more time at this bush as these nymphs were all over it - maybe there was an adult around as well! Posted one year ago
      1. I had a very similar situation and never seen the adult bug. Posted one year ago
  2. Fleshy colored back, Marvelous! Posted one year ago
    1. Thanks William, glad you enjoyed. Posted one year ago

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''Musgraveia sulciventris'' is a large stink bug found in Australia, commonly known as the bronze orange bug. It is considered a pest, particularly to plants in the citrus group. They suck the sap from trees, which causes the flowers and fruit to fall.

Similar species: True Bugs
Species identified by Ruth Spigelman
View Ruth Spigelman's profile

By Ruth Spigelman

Attribution Non-Commercial No Derivatives
Uploaded Nov 7, 2021. Captured Nov 6, 2021 10:44 in 5PVM+Q2 Tomago NSW, Australia.
  • NIKON D850
  • f/14.0
  • 10/2500s
  • ISO250
  • 105mm