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
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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 3 of 3 - image sightings only

Isomoralla eriscota (A concealer moth) at Cook, ACT - 17 Feb 2020 by CathB
Pheidole sp. (genus) (Seed-harvesting ant) at Cook, ACT - 16 Feb 2020 by CathB
Rhytidoponera sp. (genus) (Rhytidoponera ant) at Cook, ACT - 16 Feb 2020 by CathB
Chlorocoma dichloraria (Guenee's or Double-fringed Emerald) at Cook, ACT - 13 Feb 2020 by CathB
Iridomyrmex sp. (genus) (Ant) at Cook, ACT - 10 Feb 2020 by CathB
Meranoplus sp. (genus) (Shield Ant) at Cook, ACT - 10 Feb 2020 by CathB
Rhytidoponera aspera (Greenhead ant) at Cook, ACT - 10 Feb 2020 by CathB
Rutilia (Donovanius) sp. (genus & subgenus) (A Bristle Fly) at Cook, ACT - 10 Feb 2020 by CathB
Pheidole sp. (genus) (Seed-harvesting ant) at Cook, ACT - 20 Jan 2020 by CathB
Macrobathra chrysotoxa (A cosmet moth) at Cook, ACT - 20 Jan 2020 by CathB
Servaea sp. (genus) (Unidentified Servaea jumping spider) at Cook, ACT - 17 Jan 2020 by CathB
Aglaotilla sp. (genus) (Australian Velvet Ant) at Cook, ACT - 15 Jan 2020 by CathB
Ancita australis (Longicorn or longhorn beetle) at Cook, ACT - 12 Jan 2020 by CathB
Acizzia acaciaedecurrentis (Early Green Wattle Psyllid) at Cook, ACT - 12 Jan 2020 by CathB
Eurymeloides adspersa (Gumtree hopper) at Cook, ACT - 18 Dec 2019 by CathB
Paropsisterna m-fuscum (Eucalyptus Leaf Beetle) at Cook, ACT - 18 Dec 2019 by CathB
Caedicia simplex (Common Garden Katydid) at Cook, ACT - 18 Dec 2019 by CathB
Dianella sp. aff. longifolia (Benambra) (Pale Flax Lily, Blue Flax Lily) at Cook, ACT - 4 Dec 2019 by CathB
Ecnolagria grandis (Honeybrown beetle) at Cook, ACT - 4 Dec 2019 by CathB
Backobourkia sp. (genus) (An orb weaver) at Cook, ACT - 4 Dec 2019 by CathB
Camponotus nigriceps (Black-headed sugar ant) at Cook, ACT - 4 Dec 2019 by CathB
Celaenia calotoides (Bird-dropping spider) at Cook, ACT - 22 Nov 2019 by CathB
Cynosurus echinatus (Rough Dog's Tail Grass) at Cook, ACT - 22 Nov 2019 by CathB
Festuca arundinacea (Tall Fescue) at Cook, ACT - 11 Nov 2019 by CathB
Lolium perenne (Perennial Ryegrass) at Cook, ACT - 11 Nov 2019 by CathB
Lomandra filiformis subsp. filiformis (Wattle Matrush) at Cook, ACT - 6 Nov 2019 by CathB
Apolinus lividigaster (Yellow Shouldered Ladybird) at Cook, ACT - 20 Sep 2019 by CathB
Cicadellidae (family) (Unidentified leafhopper) at Cook, ACT - 21 Aug 2019 by CathB
Lepidoptera unclassified IMMATURE moth at Cook, ACT - 3 Jul 2019 by CathB
Monomorium sp. (genus) (A Monomorium ant) at Cook, ACT - 22 Jun 2019 by CathB
Pheidole sp. (genus) (Seed-harvesting ant) at Cook, ACT - 3 May 2019 by CathB
Polyrhachis ornata (Ornate spiny ant) at Cook, ACT - 20 Apr 2019 by CathB
Polyrhachis ornata (Ornate spiny ant) at Mount Painter - 15 Apr 2019 by CathB
Sphallomorpha sp. (genus) (Unidentified Sphallomorpha ground beetle) at Cook, ACT - 9 Mar 2019 by CathB
Rhinotia sp. (genus) (Unidentified Rhinotia weevil) at Cook, ACT - 21 Feb 2019 by CathB
Nymphes myrmeleonoides (Blue eyes lacewing) at Cook, ACT - 4 Feb 2019 by CathB
Euphorbia dallachyana (Mat Spurge, Caustic Weed) at Cook, ACT - 4 Feb 2019 by CathB
Monolepta juno at Cook, ACT - 1 Feb 2019 by CathB
Glycine clandestina (Twining Glycine) at Cook, ACT - 27 Jan 2019 by CathB
Araneinae (subfamily) (Orb weaver) at Cook, ACT - 27 Jan 2019 by CathB
Dianella sp. aff. longifolia (Benambra) (Pale Flax Lily, Blue Flax Lily) at Cook, ACT - 26 Jan 2019 by CathB
Myrmecia simillima (A Bull Ant) at Cook, ACT - 26 Jan 2019 by CathB
Panicum effusum (Hairy Panic Grass) at Cook, ACT - 21 Jan 2019 by CathB
Adoxia benallae (Leaf beetle) at Cook, ACT - 21 Jan 2019 by CathB
Amphibromus sp. (Swamp Wallaby Grass) at Cook, ACT - 21 Jan 2019 by CathB
Vittadinia cuneata var. cuneata (Fuzzy New Holland Daisy) at Cook, ACT - 17 Jan 2019 by CathB
Pergidae sp. (family) (Unidentified Sawfly) at Cook, ACT - 12 Jan 2019 by CathB
Mentha diemenica (Wild Mint, Slender Mint) at Cook, ACT - 10 Jan 2019 by CathB
Carex appressa (Tall Sedge) at Cook, ACT - 31 Dec 2018 by CathB
Sorghum leiocladum (Wild Sorghum) at Cook, ACT - 31 Dec 2018 by CathB
Helpis minitabunda (Threatening jumping spider) at Cook, ACT - 30 Nov 2018 by CathB
Dicranolaius villosus (Melyrid flower beetle) at Cook, ACT - 25 Nov 2018 by CathB
Faveria tritalis (Couchgrass Webworm) at Cook, ACT - 12 Nov 2018 by CathB
Gonipterus sp. (genus) (Eucalyptus Weevil) at Cook, ACT - 2 Jul 2018 by CathB
Deliochus sp. (genus) (A leaf curling spider) at Cook, ACT - 2 Jul 2018 by CathB
Platybrachys sp. (genus) (A gum hopper) at Cook, ACT - 25 Mar 2018 by CathB
Cyperus eragrostis (Umbrella Sedge) at Cook, ACT - 25 Mar 2018 by CathB
Pycnobraconoides sp. (genus) (A Braconid wasp) at Cook, ACT - 24 Mar 2018 by CathB
Cebysa leucotelus (Australian Bagmoth) at Cook, ACT - 24 Mar 2018 by CathB
Servaea sp. (genus) (Unidentified Servaea jumping spider) at Cook, ACT - 24 Mar 2018 by CathB
Lauxaniidae (family) (Unidentified lauxaniid fly) at Cook, ACT - 24 Mar 2018 by CathB
Dasygnathus sp. (Rhinoceros beetle) at Cook, ACT - 7 Mar 2018 by CathB
Formicidae (family) (Unidentified ant) at Cook, ACT - 3 Feb 2018 by CathB
Argiope trifasciata (Banded orb weaver) at Cook, ACT - 1 Feb 2018 by CathB
Diptera (order) (Fly - Unidentified) at Cook, ACT - 1 Feb 2018 by CathB
Ephemeroptera (order) (Unidentified Mayfly) at Cook, ACT - 31 Jan 2018 by CathB
Runcinia acuminata (Pointy Crab Spider) at Cook, ACT - 31 Jan 2018 by CathB
Centipeda cunninghamii (Common Sneezeweed) at Cook, ACT - 31 Jan 2018 by CathB
Uraba lugens (Gumleaf Skeletonizer) at Cook, ACT - 30 Jan 2018 by CathB
Gonipterus sp. (genus) (Eucalyptus Weevil) at Cook, ACT - 30 Jan 2018 by CathB
Alternanthera denticulata (Lesser Joyweed) at Cook, ACT - 30 Jan 2018 by CathB
Eleocharis acuta (Common Spike-rush) at Cook, ACT - 30 Jan 2018 by CathB
Persicaria lapathifolia (Pale Knotweed) at Cook, ACT - 2 Jan 2018 by CathB
Asperula conferta (Common Woodruff) at Cook, ACT - 21 Nov 2017 by CathB
Chrysocephalum semipapposum (Clustered Everlasting) at Cook, ACT - 21 Nov 2017 by CathB
Billardiera scandens (Hairy Apple Berry) at Cook, ACT - 21 Nov 2017 by CathB
Acaena echinata (Sheeps Burr) at Cook, ACT - 1 Nov 2017 by CathB
Runcinia acuminata (Pointy Crab Spider) at Cook, ACT - 29 Oct 2017 by CathB
Lasioglossum (Chilalictus) sp. (genus & subgenus) (Halictid bee) at Cook, ACT - 29 Oct 2017 by CathB
Glyphipterix chrysoplanetis (A Sedge Moth) at Cook, ACT - 29 Oct 2017 by CathB
Psyllidae sp. (family) (Unidentified psyllid or lerp insect) at Cook, ACT - 29 Oct 2017 by CathB
Homotrysis cisteloides (Darkling beetle) at Cook, ACT - 27 Oct 2017 by CathB
Chrysocephalum apiculatum (Common Everlasting) at Cook, ACT - 25 Oct 2017 by CathB
Belenois java (Caper White) at Cook, ACT - 5 Nov 2016 by EmilyS
Eryngium ovinum (Blue Devil) at Cook, ACT - 21 Dec 2015 by CathB
Azolla pinnata (Ferny Azolla) at Cook, ACT - 5 May 2012 by CathB

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Location information

Sighting information

  • 1 - 3 Abundance
  • 12 Apr 2020 04:06 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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