Dytiscidae (family)

Unidentified diving beetle at Cook, ACT

Dytiscidae (family) at Cook, ACT - 18 Apr 2020
Dytiscidae (family) at Cook, ACT - 18 Apr 2020
Dytiscidae (family) at Cook, ACT - 18 Apr 2020
Dytiscidae (family) at Cook, ACT - 18 Apr 2020
Dytiscidae (family) at Cook, ACT - 18 Apr 2020
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Identification history

Dytiscidae (family) 4 Feb 2021 michaelb
Unidentified 19 Apr 2020 CathB

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User's notes

Actively swimming just below the surface of the water. Others seen crawling on the bottom in shallow water. Seem to 'breathe' through their tail end. A previous sighting (3398125) of what seems to be the same thing was tentatively identified as a Dipter(i)a larva, but the mouthparts were not visible. They always seem to be covered in debris.

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Nearby sightings

Page 2 of 3 - image sightings only

Oenochroa and Artiastis (genera) at Cook, ACT - 9 Mar 2021 by CathB
Camponotus nigroaeneus (Sugar ant) at Cook, ACT - 19 Feb 2021 by CathB
Neotartessus flavipes (A leafhopper) at Cook, ACT - 13 Feb 2021 by CathB
Opisthoncus sp. (genus) (Unidentified Opisthoncus jumping spider) 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
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
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
Psyllidae sp. (family) (Unidentified psyllid or lerp insect) at Cook, ACT - 21 Jan 2021 by CathB
Megastigmus sp. (genus) (Parasitic wasp) at Cook, ACT - 21 Jan 2021 by CathB
Deliochus pulcher (Beautiful Deliochus spider) at Cook, ACT - 21 Jan 2021 by CathB
Ancita marginicollis (A longhorn beetle) at Cook, ACT - 9 Jan 2021 by CathB
Cynosurus echinatus (Rough Dog's Tail Grass) at Cook, ACT - 2 Jan 2021 by CathB
Dichelachne crinita (Long-hair Plume Grass) at Cook, ACT - 31 Dec 2020 by CathB
Tetragnatha demissa (Tetragnatha demissa) at Cook, ACT - 31 Dec 2020 by CathB
Lophyrotoma sp. (genus) (Sawfly) at Cook, ACT - 31 Dec 2020 by CathB
Convolvulus angustissimus subsp. angustissimus (Australian Bindweed) at Cook, ACT - 13 Dec 2020 by drakes
Heteronympha merope (Common Brown Butterfly) at Cook, ACT - 13 Dec 2020 by drakes
Hackelia suaveolens (Sweet Hounds Tongue) at Cook, ACT - 29 Nov 2020 by drakes
Acaena echinata (Sheeps Burr) at Cook, ACT - 29 Nov 2020 by drakes
Dissomorphia australiaria (Dissomorphia australiaria) at Cook, ACT - 27 Nov 2020 by AlisonMilton
Paropsisterna m-fuscum (Eucalyptus Leaf Beetle) at Cook, ACT - 26 Nov 2020 by AlisonMilton
Goniaea opomaloides (Mimetic Gumleaf Grasshopper) at Cook, ACT - 26 Nov 2020 by AlisonMilton
Dolophones sp. (genus) (Wrap-around spider) at Cook, ACT - 26 Nov 2020 by AlisonMilton
Dicranosterna immaculata (Acacia leaf beetle) at Cook, ACT - 26 Nov 2020 by AlisonMilton
Leptotarsus (Macromastix) costalis (Common Brown Crane Fly) at Cook, ACT - 26 Nov 2020 by AlisonMilton
Coccidae sp. (family) (Unidentified coccid scale insect) at Cook, ACT - 26 Nov 2020 by AlisonMilton
Atrapsalta furcilla (Southern Mountain Squeaker) at Cook, ACT - 21 Nov 2020 by CathB
Clania lewinii (Lewin's case moth) at Cook, ACT - 21 Nov 2020 by CathB
Rosopaella cuprea (A leafhopper) at Cook, ACT - 21 Nov 2020 by CathB
Eurymeloides pulchra (Gumtree hopper) at Cook, ACT - 21 Nov 2020 by CathB
Acanthonevroides jarvisi (A fruit fly) at Cook, ACT - 20 Nov 2020 by CathB
Edusella puberula (Leaf beetle) at Cook, ACT - 18 Nov 2020 by CathB
Edusella sp. (genus) (A leaf beetle) at Cook, ACT - 18 Nov 2020 by CathB
Orobanche minor (Broomrape) at Cook, ACT - 15 Nov 2020 by drakes
Lysimachia arvensis (Scarlet Pimpernel) at Cook, ACT - 15 Nov 2020 by drakes
Eryngium ovinum (Blue Devil) at Cook, ACT - 14 Nov 2020 by drakes
Pergagrapta sp. (genus) (A sawfly) at Cook, ACT - 5 Nov 2020 by CathB
Petrorhagia sp. at Cook, ACT - 1 Nov 2020 by drakes
Camponotus suffusus (Golden-tailed sugar ant) at Cook, ACT - 1 Nov 2020 by MattFox
Ceratopogonidae (family) (Biting Midge) at Cook, ACT - 28 Oct 2020 by CathB
Inopus rubriceps (Sugarcane Soldier Fly) at Cook, ACT - 28 Oct 2020 by CathB
Capusa (genus) (Wedge moth) at Cook, ACT - 20 Oct 2020 by CathB
Miridae (family) (Unidentified plant bug) at Cook, ACT - 11 Oct 2020 by CathB
Myosotis discolor (Forget-me-not) at Cook, ACT - 8 Oct 2020 by CathB
Stackhousia monogyna (Creamy Candles) at Cook, ACT - 5 Oct 2020 by JasonC
Eryngium ovinum (Blue Devil) at Cook, ACT - 17 Sep 2020 by CathB
Carex inversa (Knob Sedge) at Cook, ACT - 17 Sep 2020 by CathB
Carex breviculmis (Short-Stem Sedge) at Cook, ACT - 16 Sep 2020 by CathB
Stackhousia monogyna (Creamy Candles) at Cook, ACT - 16 Sep 2020 by CathB
Plantago gaudichaudii (Narrow Plantain) at Cook, ACT - 15 Sep 2020 by CathB
Mycetophilidae (family) (A fungus gnat) at Cook, ACT - 7 Sep 2020 by CathB
Pleuridium sp. at Cook, ACT - 21 Jul 2020 by CathB
Fissidens sp. at Cook, ACT - 18 Jul 2020 by CathB
Pottiaceae (family) (A moss) at Cook, ACT - 18 Jul 2020 by CathB
Coracina novaehollandiae (Black-faced Cuckooshrike) at Cook, ACT - 15 Jul 2020 by Tammy
Lentinus arcularius (Fringed Polypore) at Cook, ACT - 5 Jul 2020 by drakes
Clitocybe s. l. at Cook, ACT - 5 Jul 2020 by drakes
Pottiaceae (family) (A moss) at Cook, ACT - 22 Jun 2020 by CathB
Entosthodon sp. at Cook, ACT - 22 Jun 2020 by CathB
Trametes coccinea (Scarlet Bracket) at Cook, ACT - 21 Jun 2020 by drakes
Spergularia rubra (Sandspurrey) at Cook, ACT - 10 Jun 2020 by CathB
Fissidens sp. at Cook, ACT - 10 Jun 2020 by CathB
Lasiopsylla sp. (genus) (Psyllid or Lerp insect) at Cook, ACT - 1 Jun 2020 by CathB
Dianella sp. aff. longifolia (Benambra) (Pale Flax Lily, Blue Flax Lily) at Cook, ACT - 31 May 2020 by CathB
Dactylis glomerata (Cocksfoot) at Cook, ACT - 26 May 2020 by CathB
Microlaena stipoides (Weeping Grass) at Cook, ACT - 26 May 2020 by CathB
Limacella pitereka at Cook, ACT - 25 May 2020 by drakes
Plantago varia (Native Plaintain) at Cook, ACT - 21 May 2020 by CathB
Acaena sp. (A Sheep's Burr) at Cook, ACT - 21 May 2020 by CathB
Plantago gaudichaudii (Narrow Plantain) at Cook, ACT - 21 May 2020 by CathB
Dianella sp. aff. longifolia (Benambra) (Pale Flax Lily, Blue Flax Lily) at Cook, ACT - 6 May 2020 by CathB
Dolomedes sp. (genus) (Fishing spider) at Cook, ACT - 4 May 2020 by CathB
Oecophoridae (family) (Unidentified Oecophorid concealer moth) at Cook, ACT - 18 Apr 2020 by CathB
Geometridae (family) IMMATURE (Unidentified IMMATURE Geometer moths) at Cook, ACT - 13 Apr 2020 by CathB
Phryganeutis cinerea (Chezala Group moth) at Cook, ACT - 12 Apr 2020 by CathB
Pisauridae (family) (Water spider) at Cook, ACT - 12 Apr 2020 by CathB
Dytiscidae (family) (Unidentified diving beetle) at Cook, ACT - 12 Apr 2020 by CathB
Ranatra sp. (genus) (Water Scorpion or Water Stick Insect) at Cook, ACT - 10 Apr 2020 by CathB
Austrolimnophila antiqua (Crane fly) at Cook, ACT - 9 Apr 2020 by CathB
Gynoplistia (Gynoplistia) bella (A crane fly) at Cook, ACT - 9 Apr 2020 by CathB
Morbora sp. (genus) (Unidentified Morbora shield bug) at Cook, ACT - 9 Apr 2020 by CathB
Echinochloa crus-galli (Barnyard Grass) at Cook, ACT - 9 Apr 2020 by CathB
Ischnura aurora (Aurora Bluetail) at Cook, ACT - 9 Apr 2020 by CathB
Ephydridae sp. (family) (Shore Flies) at Cook, ACT - 9 Apr 2020 by CathB
Ephemeroptera (order) (Unidentified Mayfly) at Cook, ACT - 9 Apr 2020 by CathB
Chironomidae (family) (Non-biting Midge) at Cook, ACT - 9 Apr 2020 by CathB
Sapromyza sp. (genus) (A lauxaniid fly) at Cook, ACT - 9 Apr 2020 by CathB
Corixidae (family) (Water Boatman) at Cook, ACT - 9 Apr 2020 by CathB
Latridiidae sp. (family) (Minute brown scavenger beetle) at Cook, ACT - 7 Apr 2020 by CathB
Ephemeroptera (order) (Unidentified Mayfly) at Cook, ACT - 7 Apr 2020 by CathB
Leptoceridae sp. (family) (Long-horned caddisfly) at Cook, ACT - 7 Apr 2020 by CathB
Ditropidus sp. (genus) (Leaf beetle) at Cook, ACT - 7 Apr 2020 by CathB
Austrolestes leda (Wandering Ringtail) at Cook, ACT - 3 Apr 2020 by CathB
Tetragnatha sp. (genus) (Long-jawed spider) at Cook, ACT - 2 Apr 2020 by CathB

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Location information

Sighting information

  • 4 - 15 Abundance
  • 18 Apr 2020 02:09 PM Recorded on
  • CathB Recorded by

Additional information

  • 12mm to 25mm 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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