Home Insects Beetles (Coleoptera) Water beetles (several families)

Dytiscidae (family)

1 Unidentified diving beetle at Cook, ACT

Dytiscidae (family) at Cook, ACT - 12 Apr 2020
Dytiscidae (family) at Cook, ACT - 12 Apr 2020
Dytiscidae (family) at Cook, ACT - 12 Apr 2020
Dytiscidae (family) at Cook, ACT - 12 Apr 2020
Dytiscidae (family) at Cook, ACT - 12 Apr 2020
Dytiscidae (family) at Cook, ACT - 12 Apr 2020
Dytiscidae (family) at Cook, ACT - 12 Apr 2020
Dytiscidae (family) at Cook, ACT - 12 Apr 2020
Dytiscidae (family) at Cook, ACT - 12 Apr 2020
Dytiscidae (family) at Cook, ACT - 12 Apr 2020
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Identification history

Dytiscidae (family) 2 Aug 2020 MichaelMulvaney
Dytiscidae (family) 21 Apr 2020 KenT
Unidentified 20 Apr 2020 CathB

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User's notes

Same as sighting 4257061, but giving different views. The legs of this one have less ?algal growth on them.

4 comments

KenT wrote:
   21 Apr 2020
Larval form, the mandibles appear serrated when the image is magnified so it is not Hydrophilidae
CathB wrote:
   22 Apr 2020
Thanks Ken. I didn't know where to start with this one.
KenT wrote:
   22 Apr 2020
Cath, if you want to dip your toes in the water and chase freshwater macroinvertebrates two easy basic technical books (lots of pictures) are (i) The Waterbug Book by John Gooderham & Edward Tsyrlin (2002; with reprints every few years), and (ii) Colour Guide to Invertebrates of Australian Inland Waters by John H Hawking and Felicity J Smith (1997). They each have lists of references that will get you into the scientific literature.
Illilanga wrote:
   23 Apr 2020
Ditto to The Waterbug Book. Great photos and an excellent key with drawings. Thanks Ken for the other suggestion. Cheers, Sandra

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Nearby sightings

Page 1 of 4 - image sightings only

316 1 336
Thallis janthina (Fungus beetle) at Cook, ACT - 2 Jun 2023 by CathB Stenolemus sp. (genus) (Thread-legged assassin bug) at Cook, ACT - 12 May 2023 by CathB Euryopis sp. (genus) (An ant eating spider) at Cook, ACT - 3 Apr 2023 by CathB Aquila audax (Wedge-tailed Eagle) at Cook, ACT - 9 Mar 2023 by dwise Chara sp. (genus) (A charophyte green algae) at Cook, ACT - 4 Mar 2023 by CathB Lophyrotoma interrupta (Cattle Poisoning Sawfly) at Cook, ACT - 29 Dec 2022 by CathB Glyphipterix chrysoplanetis (A Sedge Moth) at Cook, ACT - 27 Dec 2022 by CathB Aaaaba fossicollis (Raspberry jewel beetle) at Cook, ACT - 17 Dec 2022 by CathB Rhinotia phoenicoptera (Belid weevil) at Cook, ACT - 8 Dec 2022 by CathB Luzula ovata (Woodrush) at Cook, ACT - 24 Nov 2022 by lbradley Monolepta minima (Leaf beetle) at Cook, ACT - 13 Jul 2022 by trevorpreston Conicochernes sp. (genus) (Chernetid Pseudoscorpion) at Cook, ACT - 13 Jul 2022 by trevorpreston Monolepta minima (Leaf beetle) at Cook, ACT - 13 Jul 2022 by trevorpreston Clematis leptophylla (Small-leaf Clematis, Old Man's Beard) at Cook, ACT - 7 Jul 2022 by trevorpreston Corticioid fungi at Cook, ACT - 7 Jul 2022 by trevorpreston Cladonia sp. (Cup Lichen) at Cook, ACT - 7 Jul 2022 by trevorpreston Hypoxylon howeianum at Cook, ACT - 7 Jul 2022 by trevorpreston Gymnopilus junonius (Gymnopilus junonius) at Cook, ACT - 26 Apr 2022 by drakes Epiphyas postvittana (Light Brown Apple Moth) at Cook, ACT - 12 Apr 2022 by CathB Chalcidoidea (superfamily) (A gall wasp or Chalcid wasp) at Cook, ACT - 27 Mar 2022 by CathB Cytaea severa (Severe Cytaea) at Cook, ACT - 26 Mar 2022 by CathB Thynninae (subfamily) (Smooth flower wasp) at Cook, ACT - 26 Mar 2022 by CathB Ottelia ovalifolia subsp. ovalifolia (Swamp Lily) at Cook, ACT - 26 Mar 2022 by CathB Agriopocoris sp. (genus) (Coreid bug) at Cook, ACT - 26 Mar 2022 by CathB Rayieria basifer (Braconid-mimic plant bug) at Cook, ACT - 26 Mar 2022 by CathB Balta spuria (A Balta Cockroach) at Cook, ACT - 26 Mar 2022 by CathB Elatine gratioloides (Waterwort) at Cook, ACT - 25 Mar 2022 by CathB Carabidae sp. (family) (A ground beetle) at Cook, ACT - 14 Feb 2022 by CathB Taeniogonalos sp. (genus) (A hyperparasitic wasp) at Cook, ACT - 18 Jan 2022 by CathB Phrissogonus laticostata (Apple looper moth) at Cook, ACT - 15 Jan 2022 by CathB Celaenia calotoides (Bird-dropping spider) at Cook, ACT - 15 Jan 2022 by CathB Celaenia calotoides (Bird-dropping spider) at Cook, ACT - 13 Jan 2022 by CathB Geitoneura klugii (Marbled Xenica) at Cook, ACT - 11 Jan 2022 by Tammy Salsa fuliginata (Sooty Orb-weaver) at Cook, ACT - 2 Jan 2022 by CathB Phycitinae (subfamily) (A snout moth) at Cook, ACT - 19 Dec 2021 by CathB Arrade destituta (Arrade destituta) at Cook, ACT - 19 Dec 2021 by CathB Micromus tasmaniae (Tasmanian Brown Lacewing) at Cook, ACT - 19 Dec 2021 by CathB Tetrigidae (family) (Pygmy grasshopper) at Cook, ACT - 18 Dec 2021 by CathB Taxeotis intextata (Looper Moth, Grey Taxeotis) at Cook, ACT - 18 Dec 2021 by CathB Celaenia calotoides (Bird-dropping spider) at Cook, ACT - 16 Dec 2021 by CathB Caesia calliantha (Blue Grass-lily) at Cook, ACT - 15 Dec 2021 by SarahHnatiuk Crypsiphona ocultaria (Red-lined Looper Moth) at Cook, ACT - 25 Nov 2021 by CathB Ephemeroptera (order) (Unidentified Mayfly) at Cook, ACT - 23 Nov 2021 by CathB Melanterius sp. (genus) (Unidentified Melanterius weevil) at Cook, ACT - 23 Nov 2021 by CathB Tetragnatha sp. (genus) (Long-jawed spider) at Cook, ACT - 22 Nov 2021 by CathB Macrobathra desmotoma ( A Cosmet moth) at Cook, ACT - 22 Nov 2021 by CathB Austrolestes leda (Wandering Ringtail) at Cook, ACT - 22 Nov 2021 by CathB Edusella sp. (genus) (A leaf beetle) at Cook, ACT - 22 Nov 2021 by CathB Dictyotus conspicuus (A shield or stink bug) at Cook, ACT - 14 Oct 2021 by CathB Hypoxylon sp. at Cook, ACT - 11 Oct 2021 by tpreston Limnodynastes tasmaniensis (Spotted Grass Frog) at Cook, ACT - 11 Oct 2021 by tpreston Philobota undescribed species near arabella (A concealer moth) at Cook, ACT - 11 Oct 2021 by tpreston Scopula rubraria (Plantain Moth) at Cook, ACT - 11 Oct 2021 by tpreston Stackhousia monogyna (Creamy Candles) at Cook, ACT - 11 Oct 2021 by tpreston Nacoleia rhoeoalis (Spilomelinae) at Cook, ACT - 11 Oct 2021 by trevorpreston Platyptilia celidotus (Plume Moth) at Cook, ACT - 11 Oct 2021 by tpreston Schoenus apogon (Common Bog Sedge) at Cook, ACT - 4 Oct 2021 by drakes Stackhousia monogyna (Creamy Candles) at Cook, ACT - 27 Sep 2021 by drakes Phaeoceros sp. at Cook, ACT - 16 Sep 2021 by CathB Anthoceros sp. at Cook, ACT - 16 Sep 2021 by CathB Plecoptera sp. (order) (Unidentified Stone fly) at Cook, ACT - 10 Sep 2021 by CathB Acacia pravissima (Wedge-leaved Wattle, Ovens Wattle) at Cook, ACT - 9 Sep 2021 by drakes Acacia rubida (Red-stemmed Wattle, Red-leaved Wattle) at Cook, ACT - 16 Aug 2021 by drakes Acacia baileyana (Cootamundra Wattle, Golden Mimosa) at Cook, ACT - 2 Aug 2021 by drakes Parmeliaceae sp. (family) (A lichen family) at Cook, ACT - 1 Aug 2021 by drakes Coprinellus etc. (An Inkcap) at Cook, ACT - 4 Jul 2021 by drakes zz agaric (stem; gills white/cream) at Cook, ACT - 4 Jul 2021 by drakes Coprinellus micaceus group at Cook, ACT - 27 Jun 2021 by drakes Cortinarius sp. (Cortinarius) at Cook, ACT - 20 Jun 2021 by drakes zz agaric (stem; gills white/cream) at Cook, ACT - 27 May 2021 by drakes zz agaric (stem; gills not white/cream) at Cook, ACT - 13 May 2021 by drakes Eucalyptus melliodora (Yellow Box) at Cook, ACT - 9 May 2021 by drakes Orobanche minor (Broomrape) at Cook, ACT - 6 May 2021 by drakes Eucalyptus rubida subsp. rubida (Candlebark) at Cook, ACT - 3 May 2021 by drakes Gymnopilus junonius (Gymnopilus junonius) at Cook, ACT - 8 Apr 2021 by drakes Phylloporus sp. (Phylloporus sp.) at Cook, ACT - 8 Apr 2021 by drakes Amanita sp. (Amanita sp.) at Cook, ACT - 1 Apr 2021 by drakes Tiliqua scincoides scincoides (Eastern Blue-tongue) at Cook, ACT - 1 Apr 2021 by drakes Crypsiphona ocultaria (Red-lined Looper Moth) at Cook, ACT - 16 Mar 2021 by Tammy Oenochroa and Artiastis (genera) at Cook, ACT - 9 Mar 2021 by CathB Perga dorsalis (Steel-blue sawfly, spitfire) at Cook, ACT - 26 Feb 2021 by CathB Camponotus nigroaeneus (Sugar ant) at Cook, ACT - 19 Feb 2021 by CathB Opisthoncus sp. (genus) (Unidentified Opisthoncus jumping spider) at Cook, ACT - 13 Feb 2021 by CathB Neotartessus flavipes (A leafhopper) at Cook, ACT - 13 Feb 2021 by CathB Rhytidoponera aspera (Greenhead ant) at Cook, ACT - 10 Feb 2021 by CathB Tiphiidae sp. (family) (Unidentified Smooth flower wasp) at Cook, ACT - 9 Feb 2021 by CathB Pluteus 'yellow' at Cook, ACT - 7 Feb 2021 by drakes Rosa rubiginosa (Sweet Briar, Eglantine) at Cook, ACT - 24 Jan 2021 by drakes Araneus circulissparsus (species group) (Speckled Orb-weaver) at Cook, ACT - 23 Jan 2021 by CathB Camponotus suffusus (Golden-tailed sugar ant) at Cook, ACT - 23 Jan 2021 by CathB Miridae (family) (Unidentified plant bug) at Cook, ACT - 23 Jan 2021 by CathB Diomus notescens (Little two-spotted ladybird) at Cook, ACT - 23 Jan 2021 by CathB Conocephalus sp. (genus) (A Tussock Katydid) at Cook, ACT - 21 Jan 2021 by CathB Cadmus (Cadmus) litigiosus (Leaf beetle) at Cook, ACT - 21 Jan 2021 by CathB Psyllidae sp. (family) (Unidentified psyllid or lerp insect) at Cook, ACT - 21 Jan 2021 by CathB Opisthoncus sexmaculatus (Six-marked jumping spider) at Cook, ACT - 21 Jan 2021 by CathB Megastigmus sp. (genus) (Parasitic wasp) at Cook, ACT - 21 Jan 2021 by CathB Psyllidae sp. (family) (Unidentified psyllid or lerp insect) at Cook, ACT - 21 Jan 2021 by CathB Deliochus pulcher (Beautiful Deliochus spider) at Cook, ACT - 21 Jan 2021 by CathB Lactuca serriola f. serriola (Prickly Lettuce) at Cook, ACT - 18 Jan 2021 by drakes
Thallis janthina (Fungus beetle) at Cook, ACT - 2 Jun 2023 by CathB
Stenolemus sp. (genus) (Thread-legged assassin bug) at Cook, ACT - 12 May 2023 by CathB
Euryopis sp. (genus) (An ant eating spider) at Cook, ACT - 3 Apr 2023 by CathB
Aquila audax (Wedge-tailed Eagle) at Cook, ACT - 9 Mar 2023 by dwise
Chara sp. (genus) (A charophyte green algae) at Cook, ACT - 4 Mar 2023 by CathB
Lophyrotoma interrupta (Cattle Poisoning Sawfly) at Cook, ACT - 29 Dec 2022 by CathB
Glyphipterix chrysoplanetis (A Sedge Moth) at Cook, ACT - 27 Dec 2022 by CathB
Aaaaba fossicollis (Raspberry jewel beetle) at Cook, ACT - 17 Dec 2022 by CathB
Rhinotia phoenicoptera (Belid weevil) at Cook, ACT - 8 Dec 2022 by CathB
Luzula ovata (Woodrush) at Cook, ACT - 24 Nov 2022 by lbradley
Monolepta minima (Leaf beetle) at Cook, ACT - 13 Jul 2022 by trevorpreston
Conicochernes sp. (genus) (Chernetid Pseudoscorpion) at Cook, ACT - 13 Jul 2022 by trevorpreston
Monolepta minima (Leaf beetle) at Cook, ACT - 13 Jul 2022 by trevorpreston
Clematis leptophylla (Small-leaf Clematis, Old Man's Beard) at Cook, ACT - 7 Jul 2022 by trevorpreston
Corticioid fungi at Cook, ACT - 7 Jul 2022 by trevorpreston
Cladonia sp. (Cup Lichen) at Cook, ACT - 7 Jul 2022 by trevorpreston
Hypoxylon howeianum at Cook, ACT - 7 Jul 2022 by trevorpreston
Gymnopilus junonius (Gymnopilus junonius) at Cook, ACT - 26 Apr 2022 by drakes
Epiphyas postvittana (Light Brown Apple Moth) at Cook, ACT - 12 Apr 2022 by CathB
Chalcidoidea (superfamily) (A gall wasp or Chalcid wasp) at Cook, ACT - 27 Mar 2022 by CathB
Cytaea severa (Severe Cytaea) at Cook, ACT - 26 Mar 2022 by CathB
Thynninae (subfamily) (Smooth flower wasp) at Cook, ACT - 26 Mar 2022 by CathB
Ottelia ovalifolia subsp. ovalifolia (Swamp Lily) at Cook, ACT - 26 Mar 2022 by CathB
Agriopocoris sp. (genus) (Coreid bug) at Cook, ACT - 26 Mar 2022 by CathB
Rayieria basifer (Braconid-mimic plant bug) at Cook, ACT - 26 Mar 2022 by CathB
Balta spuria (A Balta Cockroach) at Cook, ACT - 26 Mar 2022 by CathB
Elatine gratioloides (Waterwort) at Cook, ACT - 25 Mar 2022 by CathB
Carabidae sp. (family) (A ground beetle) at Cook, ACT - 14 Feb 2022 by CathB
Taeniogonalos sp. (genus) (A hyperparasitic wasp) at Cook, ACT - 18 Jan 2022 by CathB
Phrissogonus laticostata (Apple looper moth) at Cook, ACT - 15 Jan 2022 by CathB
Celaenia calotoides (Bird-dropping spider) at Cook, ACT - 15 Jan 2022 by CathB
Celaenia calotoides (Bird-dropping spider) at Cook, ACT - 13 Jan 2022 by CathB
Geitoneura klugii (Marbled Xenica) at Cook, ACT - 11 Jan 2022 by Tammy
Salsa fuliginata (Sooty Orb-weaver) at Cook, ACT - 2 Jan 2022 by CathB
Phycitinae (subfamily) (A snout moth) at Cook, ACT - 19 Dec 2021 by CathB
Arrade destituta (Arrade destituta) at Cook, ACT - 19 Dec 2021 by CathB
Micromus tasmaniae (Tasmanian Brown Lacewing) at Cook, ACT - 19 Dec 2021 by CathB
Tetrigidae (family) (Pygmy grasshopper) at Cook, ACT - 18 Dec 2021 by CathB
Taxeotis intextata (Looper Moth, Grey Taxeotis) at Cook, ACT - 18 Dec 2021 by CathB
Celaenia calotoides (Bird-dropping spider) at Cook, ACT - 16 Dec 2021 by CathB
Caesia calliantha (Blue Grass-lily) at Cook, ACT - 15 Dec 2021 by SarahHnatiuk
Crypsiphona ocultaria (Red-lined Looper Moth) at Cook, ACT - 25 Nov 2021 by CathB
Ephemeroptera (order) (Unidentified Mayfly) at Cook, ACT - 23 Nov 2021 by CathB
Melanterius sp. (genus) (Unidentified Melanterius weevil) at Cook, ACT - 23 Nov 2021 by CathB
Tetragnatha sp. (genus) (Long-jawed spider) at Cook, ACT - 22 Nov 2021 by CathB
Macrobathra desmotoma ( A Cosmet moth) at Cook, ACT - 22 Nov 2021 by CathB
Austrolestes leda (Wandering Ringtail) at Cook, ACT - 22 Nov 2021 by CathB
Edusella sp. (genus) (A leaf beetle) at Cook, ACT - 22 Nov 2021 by CathB
Dictyotus conspicuus (A shield or stink bug) at Cook, ACT - 14 Oct 2021 by CathB
Hypoxylon sp. at Cook, ACT - 11 Oct 2021 by tpreston
Limnodynastes tasmaniensis (Spotted Grass Frog) at Cook, ACT - 11 Oct 2021 by tpreston
Philobota undescribed species near arabella (A concealer moth) at Cook, ACT - 11 Oct 2021 by tpreston
Scopula rubraria (Plantain Moth) at Cook, ACT - 11 Oct 2021 by tpreston
Stackhousia monogyna (Creamy Candles) at Cook, ACT - 11 Oct 2021 by tpreston
Nacoleia rhoeoalis (Spilomelinae) at Cook, ACT - 11 Oct 2021 by trevorpreston
Platyptilia celidotus (Plume Moth) at Cook, ACT - 11 Oct 2021 by tpreston
Schoenus apogon (Common Bog Sedge) at Cook, ACT - 4 Oct 2021 by drakes
Stackhousia monogyna (Creamy Candles) at Cook, ACT - 27 Sep 2021 by drakes
Phaeoceros sp. at Cook, ACT - 16 Sep 2021 by CathB
Anthoceros sp. at Cook, ACT - 16 Sep 2021 by CathB
Plecoptera sp. (order) (Unidentified Stone fly) at Cook, ACT - 10 Sep 2021 by CathB
Acacia pravissima (Wedge-leaved Wattle, Ovens Wattle) at Cook, ACT - 9 Sep 2021 by drakes
Acacia rubida (Red-stemmed Wattle, Red-leaved Wattle) at Cook, ACT - 16 Aug 2021 by drakes
Acacia baileyana (Cootamundra Wattle, Golden Mimosa) at Cook, ACT - 2 Aug 2021 by drakes
Parmeliaceae sp. (family) (A lichen family) at Cook, ACT - 1 Aug 2021 by drakes
Coprinellus etc. (An Inkcap) at Cook, ACT - 4 Jul 2021 by drakes
zz agaric (stem; gills white/cream) at Cook, ACT - 4 Jul 2021 by drakes
Coprinellus micaceus group at Cook, ACT - 27 Jun 2021 by drakes
Cortinarius sp. (Cortinarius) at Cook, ACT - 20 Jun 2021 by drakes
zz agaric (stem; gills white/cream) at Cook, ACT - 27 May 2021 by drakes
zz agaric (stem; gills not white/cream) at Cook, ACT - 13 May 2021 by drakes
Eucalyptus melliodora (Yellow Box) at Cook, ACT - 9 May 2021 by drakes
Orobanche minor (Broomrape) at Cook, ACT - 6 May 2021 by drakes
Eucalyptus rubida subsp. rubida (Candlebark) at Cook, ACT - 3 May 2021 by drakes
Gymnopilus junonius (Gymnopilus junonius) at Cook, ACT - 8 Apr 2021 by drakes
Phylloporus sp. (Phylloporus sp.) at Cook, ACT - 8 Apr 2021 by drakes
Amanita sp. (Amanita sp.) at Cook, ACT - 1 Apr 2021 by drakes
Tiliqua scincoides scincoides (Eastern Blue-tongue) at Cook, ACT - 1 Apr 2021 by drakes
Crypsiphona ocultaria (Red-lined Looper Moth) at Cook, ACT - 16 Mar 2021 by Tammy
Oenochroa and Artiastis (genera) at Cook, ACT - 9 Mar 2021 by CathB
Perga dorsalis (Steel-blue sawfly, spitfire) at Cook, ACT - 26 Feb 2021 by CathB
Camponotus nigroaeneus (Sugar ant) at Cook, ACT - 19 Feb 2021 by CathB
Opisthoncus sp. (genus) (Unidentified Opisthoncus jumping spider) at Cook, ACT - 13 Feb 2021 by CathB
Neotartessus flavipes (A leafhopper) at Cook, ACT - 13 Feb 2021 by CathB
Rhytidoponera aspera (Greenhead ant) at Cook, ACT - 10 Feb 2021 by CathB
Tiphiidae sp. (family) (Unidentified Smooth flower wasp) at Cook, ACT - 9 Feb 2021 by CathB
Pluteus 'yellow' at Cook, ACT - 7 Feb 2021 by drakes
Rosa rubiginosa (Sweet Briar, Eglantine) at Cook, ACT - 24 Jan 2021 by drakes
Araneus circulissparsus (species group) (Speckled Orb-weaver) at Cook, ACT - 23 Jan 2021 by CathB
Camponotus suffusus (Golden-tailed sugar ant) at Cook, ACT - 23 Jan 2021 by CathB
Miridae (family) (Unidentified plant bug) at Cook, ACT - 23 Jan 2021 by CathB
Diomus notescens (Little two-spotted ladybird) at Cook, ACT - 23 Jan 2021 by CathB
Conocephalus sp. (genus) (A Tussock Katydid) at Cook, ACT - 21 Jan 2021 by CathB
Cadmus (Cadmus) litigiosus (Leaf beetle) at Cook, ACT - 21 Jan 2021 by CathB
Psyllidae sp. (family) (Unidentified psyllid or lerp insect) at Cook, ACT - 21 Jan 2021 by CathB
Opisthoncus sexmaculatus (Six-marked jumping spider) at Cook, ACT - 21 Jan 2021 by CathB
Megastigmus sp. (genus) (Parasitic wasp) at Cook, ACT - 21 Jan 2021 by CathB
Psyllidae sp. (family) (Unidentified psyllid or lerp insect) at Cook, ACT - 21 Jan 2021 by CathB
Deliochus pulcher (Beautiful Deliochus spider) at Cook, ACT - 21 Jan 2021 by CathB
Lactuca serriola f. serriola (Prickly Lettuce) at Cook, ACT - 18 Jan 2021 by drakes

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Location information

Species information

  • Dytiscidae (family) Scientific name
  • Unidentified diving beetle Common name
  • Not Sensitive
  • Local Native
  • Non-Invasive

Sighting information

  • 1 - 3 Abundance
  • 12 Apr 2020 04:06 PM Recorded on
  • CathB Recorded by

Additional information

  • 12mm to 25mm Animal size

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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