Chrysolina quadrigemina

Greater St Johns Wort beetle at O'Connor, ACT

Chrysolina quadrigemina at O'Connor, ACT - 30 Nov 2020
Chrysolina quadrigemina at O'Connor, ACT - 30 Nov 2020
Chrysolina quadrigemina at O'Connor, ACT - 30 Nov 2020
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Identification history

Chrysolina quadrigemina 1 Dec 2020 MichaelMulvaney
Unidentified 1 Dec 2020 ConBoekel

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User's notes

The second and third images are of a second individual. There were four individuals on four separate flowering St John's Wort. There seemed to be some damage to the St John's Wort plants. Is an example of biological control? I subsequently checked over a dozen flowering St John's Wort without again seeing any beetles. When disturbed, individuals would let go and fall to the ground.

3 comments

   1 Dec 2020
Yes this beetle is a biological control agent - not that effective
roymcd wrote:
   1 Dec 2020
Dr. Mulvaney, how dare you besmirch our little helpers...! :-)
(I guess the key word is 'little')
AaronClausen wrote:
   1 Dec 2020
I pulled out 4 plants of this today up at Piney Ridge. Will look out for beetles next time.

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Nearby sightings

Page 1 of 2 - image sightings only

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Eudonia cleodoralis (A Crambid moth) at O'Connor, ACT - 24 Sep 2023 by ConBoekel
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Nostoc sp. (genus) (A cyanobacterium) at O'Connor, ACT - 5 May 2023 by ConBoekel
Caledia captiva (grasshopper) at O'Connor, ACT - 5 May 2023 by ConBoekel
Heteronympha merope (Common Brown Butterfly) at O'Connor, ACT - 5 May 2023 by ConBoekel
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Elaphodes cervinus (Leaf beetle) at O'Connor, ACT - 30 Mar 2023 by ConBoekel
Hellula hydralis (Cabbage Centre Moth) at O'Connor, ACT - 30 Mar 2023 by ConBoekel
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Ocybadistes walkeri (Green Grass-dart) at O'Connor, ACT - 27 Mar 2023 by ConBoekel
Ptochostola microphaeellus (A Crambid moth) at O'Connor, ACT - 24 Mar 2023 by ConBoekel
Scopula rubraria (Reddish Wave, Plantain Moth) at O'Connor, ACT - 24 Mar 2023 by ConBoekel
Hednota species near grammellus (Pyralid or snout moth) at O'Connor, ACT - 24 Mar 2023 by ConBoekel
Katipo rubrivenosa (A leafhopper) at O'Connor, ACT - 24 Mar 2023 by ConBoekel
Eurymela fenestrata (Gum tree leafhopper) at O'Connor, ACT - 24 Mar 2023 by ConBoekel
Lampropholis delicata (Delicate Skink) at O'Connor, ACT - 24 Mar 2023 by ConBoekel
Culladia cuneiferellus (Crambinae moth) at O'Connor, ACT - 24 Mar 2023 by ConBoekel
Eudonia cleodoralis (A Crambid moth) at O'Connor, ACT - 24 Mar 2023 by ConBoekel
Lucia limbaria (Chequered Copper) at O'Connor, ACT - 24 Mar 2023 by ConBoekel
Chenopodium album (Fat Hen) at O'Connor, ACT - 20 Mar 2023 by ConBoekel
Macrotona securiformis (Inland Macrotona) at O'Connor, ACT - 12 Mar 2023 by ConBoekel
Oechalia schellenbergii (Spined Predatory Shield Bug) at O'Connor, ACT - 12 Mar 2023 by ConBoekel
Eudonia cleodoralis (A Crambid moth) at O'Connor, ACT - 12 Mar 2023 by ConBoekel
Acrida conica (Giant green slantface) at O'Connor, ACT - 12 Mar 2023 by ConBoekel
Phaulacridium vittatum (Wingless Grasshopper) at O'Connor, ACT - 12 Mar 2023 by ConBoekel
Eudonia cleodoralis (A Crambid moth) at O'Connor, ACT - 12 Mar 2023 by ConBoekel
Jalmenus ictinus (Stencilled Hairstreak) at O'Connor, ACT - 12 Mar 2023 by ConBoekel
Sarcophagidae sp. (family) (Unidentified flesh fly) at O'Connor, ACT - 12 Mar 2023 by ConBoekel
Cerceris sp. (genus) (Unidentified Cerceris wasp) at O'Connor, ACT - 12 Mar 2023 by ConBoekel
Eurymelinae (subfamily) (Unidentified eurymeline leafhopper) at O'Connor, ACT - 12 Mar 2023 by ConBoekel
Ocybadistes walkeri (Green Grass-dart) at O'Connor, ACT - 12 Mar 2023 by ConBoekel
Paropsis atomaria (Eucalyptus leaf beetle) at O'Connor, ACT - 12 Mar 2023 by ConBoekel
Oechalia schellenbergii (Spined Predatory Shield Bug) at O'Connor, ACT - 12 Mar 2023 by ConBoekel
Amorbus sp. (genus) (Eucalyptus Tip bug) at O'Connor, ACT - 11 Mar 2023 by ConBoekel
Paropsisterna cloelia (Eucalyptus variegated beetle) at O'Connor, ACT - 11 Mar 2023 by ConBoekel
Orthodera ministralis (Green Mantid) at O'Connor, ACT - 11 Mar 2023 by ConBoekel
Amorbus sp. (genus) (Eucalyptus Tip bug) at O'Connor, ACT - 11 Mar 2023 by ConBoekel
Scopula rubraria (Reddish Wave, Plantain Moth) at O'Connor, ACT - 11 Mar 2023 by ConBoekel
Paropsisterna fastidiosa (Eucalyptus leaf beetle) at O'Connor, ACT - 11 Mar 2023 by ConBoekel
Utetheisa pulchelloides (Heliotrope Moth) at O'Connor, ACT - 11 Mar 2023 by ConBoekel
Acrida conica (Giant green slantface) at O'Connor, ACT - 11 Mar 2023 by ConBoekel
Phaulacridium vittatum (Wingless Grasshopper) at O'Connor, ACT - 11 Mar 2023 by ConBoekel
Paropsisterna m-fuscum (Eucalyptus Leaf Beetle) at O'Connor, ACT - 11 Mar 2023 by ConBoekel
Chortoicetes terminifera (Australian Plague Locust) at O'Connor, ACT - 11 Mar 2023 by ConBoekel
Eriococcus coriaceus (Gumtree Scale) at O'Connor, ACT - 11 Mar 2023 by ConBoekel
Morethia boulengeri (Boulenger's Skink) at O'Connor, ACT - 11 Mar 2023 by ConBoekel
Lucia limbaria (Chequered Copper) at O'Connor, ACT - 20 Feb 2023 by ConBoekel
Monolepta froggatti (Leaf beetle) at O'Connor, ACT - 28 Jan 2023 by ConBoekel
Amorbus sp. (genus) (Eucalyptus Tip bug) at O'Connor, ACT - 28 Jan 2023 by ConBoekel
Stenocotis depressa (Leafhopper) at O'Connor, ACT - 28 Jan 2023 by ConBoekel
Harmonia conformis (Common Spotted Ladybird) at O'Connor, ACT - 28 Jan 2023 by ConBoekel
Phonognatha graeffei (Leaf Curling Spider) at O'Connor, ACT - 28 Jan 2023 by ConBoekel
Jalmenus ictinus (Stencilled Hairstreak) at O'Connor, ACT - 28 Jan 2023 by ConBoekel
Aporocera (Aporocera) consors (A leaf beetle) at O'Connor, ACT - 28 Jan 2023 by ConBoekel
Dicranosterna immaculata (Acacia leaf beetle) at O'Connor, ACT - 28 Jan 2023 by ConBoekel
Capusa senilis (Black-banded Wedge-moth) at O'Connor, ACT - 28 Jan 2023 by ConBoekel
Monophlebulus sp. (genus) (Giant Snowball Mealybug) at O'Connor, ACT - 28 Jan 2023 by ConBoekel
Gonipterus pulverulentus (Eucalyptus weevil) at O'Connor, ACT - 28 Jan 2023 by ConBoekel
Theridion sp. (genus) (Tangle-web spider) at O'Connor, ACT - 28 Jan 2023 by ConBoekel
Peltoschema oceanica (Oceanica leaf beetle) at O'Connor, ACT - 28 Jan 2023 by ConBoekel
Conocephalomima barameda (False Meadow Katydid, Barameda) at O'Connor, ACT - 28 Jan 2023 by ConBoekel
Lepidoptera unclassified IMMATURE moth at O'Connor, ACT - 27 Jan 2023 by ConBoekel
Myrmeleontidae (family) (Unidentified Antlion Lacewing) at O'Connor, ACT - 15 Jan 2023 by ConBoekel
Podargus strigoides (Tawny Frogmouth) at O'Connor, ACT - 12 Jan 2023 by ConBoekel
Goniaea opomaloides (Mimetic Gumleaf Grasshopper) at O'Connor, ACT - 9 Jan 2023 by ConBoekel
Taxeotis intextata (Looper Moth, Grey Taxeotis) at O'Connor, ACT - 9 Jan 2023 by ConBoekel
Braconidae (family) (Unidentified braconid wasp) at O'Connor, ACT - 9 Jan 2023 by ConBoekel
Rhinotia sp. (genus) (Unidentified Rhinotia weevil) at O'Connor, ACT - 9 Jan 2023 by ConBoekel
Torbia viridissima (Gum Leaf Katydid) at O'Connor, ACT - 9 Jan 2023 by ConBoekel
Phaulacridium vittatum (Wingless Grasshopper) at O'Connor, ACT - 9 Jan 2023 by ConBoekel
Taxeotis intermixtaria (Dark-edged Taxeotis) at O'Connor, ACT - 9 Jan 2023 by ConBoekel
Calomela juncta (Leaf beetle) at O'Connor, ACT - 9 Jan 2023 by ConBoekel
Araneinae (subfamily) (Orb weaver) at O'Connor, ACT - 29 Dec 2022 by ConBoekel

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Location information

Sighting information

  • 4 Abundance
  • 30 Nov 2020 09:41 AM Recorded on
  • ConBoekel Recorded by

Additional information

  • St John's Wort Associated plant
  • 5mm to 12mm Animal size

Species information

Record quality

  • Images or audio
  • More than one media file
  • Confirmed by an expert moderator
  • Nearby sighting(s) of same species
  • GPS evidence of location
  • Description
  • Additional attributes
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