Insects & other Arthropods David A Kendall   BSc PhD
E-Mail: kendalluk@aol.com
Order Coleoptera (Beetles)
(Coleo-ptera, from Greek koleos = sheath, pteron = wing)
Class: Insecta

Minute to large insects with forewings modified into hard leathery wing-cases (called elytra) that meet in a line down the back. The hind wings are membranous, folded beneath the elytra, but are vestigial or absent in many species. Antennae are very variable, but the mouthparts are always of the biting type. Metamorphosis is complex, with four or more larval stages and a pupal stage. Larval types are very diverse, sometimes legless, but nearly always with a well developed head and biting jaws. The beetles, with more than 350,000 known species, rank as the largest Order in the animal kingdom. Over 4,000 species inhabit the British Isles. In the tropical Goliath and Hercules Beetles, with weights in the region of 100 grams, they include the heaviest of all insects. But such is the range of form and size in the Order, that it also contains some of the smallest insects, less than 0.5 mm long. Within the limitations imposed by their biting mouthparts, the beetles have invaded all available habitats - including the sea - and exploited all possible food sources. The Order includes plant-feeders, scavengers, predators and parasites, so that few natural organic materials escape the attention of one or other of these insects. Many species are serious pests: chafers, weevils and many other beetles damage growing crops; several species infest stored grain, flour and other dry food stuffs; carpets and other fabrics are attacked by Carpet Beetles, and timber is weakened and destroyed by Woodworm and other wood-boring beetles. On the other hand, many beetles are useful allies as predators of insect pests. The aphid-eating Ladybirds are especially important in this respect, while the Dung-beetles and Sexton Beetles that consume animal faeces and carrion are important links in the re-cycling of waste matter.

Family Carabidae (Ground Beetles & Tiger Beetles) Top  |  Home Page
Harpalus affinis
Harpalus affinis
b. 8-10 mm (Photo: C.W. Wiltshire)
Amara similata
Amara similata
b. 8-10 mm
Anchomenus dorsalis
Anchomenus dorsalis
b. 6-8 mm (Photo: C.W. Wiltshire)
Agonum muelleri
Agonum muelleri
b. 7-9 mm (Photo: C.W. Wiltshire)
Notiophilus biguttatus
Notiophilus biguttatus
b. 4-5 mm (Photo: C.W. Wiltshire)
Carabus problematicus
Carabus problematicus
b. 20-28 mm (Photo: T. Taylor)
Violet Ground Beetle
Carabus violaceus - Violet Ground Beetle
b. 20-30 mm
Carabus nemoralis
Carabus nemoralis
b. 20-26 mm
Carabus clatratus
Carabus clatratus
b. 22-30 mm (Photo: M. McPhial)
Cychrus caraboides
Cychrus caraboides
b. 15-18 mm
Abax parallelepipedus
Abax parallelepipedus
b. 18-22 mm
Poecilus cupreus
Poecilus cupreus
b. 10-13 mm
Pterostichus madidus
Pterostichus madidus
b. 14-17 mm (Photo: C.W. Wiltshire)
Pterostichus melanarius
Pterostichus melanarius
b. 14-18 mm
Pterostichus strenuus
Pterostichus strenuus
b. 5-7 mm (Photo: C.W. Wiltshire)
Nebria brevicollis
Nebria brevicollis
b. 9-13 mm (Photo: C.W. Wiltshire)
Nebria complanata
Nebria complanata
b. 17-24 mm
Badister bullatus
Badister bullatus (= Badister bipustulatus)
b. 6-7 mm (Photo: C.W. Wiltshire)
Green Tiger Beetle
Cicindela campestris - Green Tiger Beetle
b. 12-15 mm
Family Dytiscidae (Water Beetles) Top  |  Home Page
Great Diving Beetle (male)
Dytiscus marginalis - Great Diving Beetle (male)
b. 25-35 mm
Great Diving Beetle (female)
Dytiscus marginalis - Great Diving Beetle (female)
b. 25-35 mm
Acilius sulcatus (male & female)
Acilius sulcatus (male left; female right)
b. 15-20 mm
Family Staphylinidae (Rove Beetles) Top  |  Home Page
Devil's Coach-horse
Ocypus olens - Devil's Coach-horse
b. 20-28 mm
Platydracus stercorarius
Platydracus stercorarius
b. 11-14 mm
Ontholestes sp.
Ontholestes sp.
b. 10-20 mm (Photo: anon. email)
Philonthus marginatus
Philonthus marginatus
b. 7-9 mm (Photo: C.W. Wiltshire)
Paederus littoralis
Paederus littoralis
b. 6-8 mm (Photo: C.W. Wiltshire)
Family Silphidae (Carrion Beetles) Top  |  Home Page
Silpha atrata
Silpha atrata
b. 10-15 mm
Nicrophorus investigator
Nicrophorus investigator - a Sexton or Burying Beetle
b. 12-22 mm (hosting phoretic mites; Photo: J. Weir)
Nicrophorus vespilloides
Nicrophorus vespilloides - a Sexton or Burying Beetle
b. 10-17 mm (hosting phoretic mites; Photo: J. Weir)
Family Histeridae (Hister or Clown Beetles) Top  |  Home Page
Margarinotus ventralis
Margarinotus ventralis
b. 5-7 mm
Family Lucanidae & Geotrupidae (Stag Beetles & Dor Beetles) Top  |  Home Page
Stag Beetle (male)
Lucanus cervus - Stag Beetle (male)
b. 20-66 mm
Stag Beetle (female)
Lucanus cervus - Stag Beetle (female)
b. 20-50 mm
Lesser Stag Beetle (male)
Dorcus parallelopipedus - Lesser Stag Beetle (male)
b. 18-30 mm
Horned Stag Beetle (male)
Sinodendron cylindricum - Horned Stag Beetle (male)
b. 10-15 mm
Anoplotrupes stercorosus
Anoplotrupes (= Geotrupes) stercorosus - a Dor Beetle
b. 13-17 mm
Family Scarabaeidae (Dung Beetles & Chafers) Top  |  Home Page
Onthophagus vacca
Onthophagus vacca - a Dung Beetle
b. 8-12 mm
Aphodius fimetarius
Aphodius fimetarius - a Dung Beetle
b. 5-7 mm
Aphodius rufipes
Aphodius rufipes - a Dung Beetle
b. 10-12 mm
Common Cockchafer
Melolontha melolontha - Common Cockchafer
b. 20-25 mm
Summer Chafer
Amphimallon solstitiale - Summer Chafer
b. 14-16 mm (Photo: Alan Dewar, Dewar Crop Protection)
Welsh Chafer
Hoplia philanthus - Welsh Chafer
b. 7-9 mm (Photo: Alan Dewar, Dewar Crop Protection)
Dune Chafer
Anomala dubia - Dune Chafer
b. 10-14 mm (Photo: Alan Dewar, Dewar Crop Protection)
Garden Chafer (mating pair)
Phyllopertha horticola - Garden Chafer (mating pair)
b. 8-11 mm (Photo: Alan Dewar, Dewar Crop Protection)
Brown Chafer
Serica brunnea - Brown Chafer
b. 8-10 mm (Photo: Alan Dewar, Dewar Crop Protection)
Chafer Beetle larvae (White Grubs or Rookworms)
Chafer Beetle larvae (White Grubs or Rookworms)
b. up to 35 mm (Photo: Alan Dewar, Dewar Crop Protection)
Rose Chafer
Cetonia aurata - Rose Chafer
b. 14-20 mm (Photo: D. J. Lintzner)
Bee Beetle
Trichius fasciatus - Bee Beetle
b. 10-13 mm (Photo: R. Powell)
Family Elateridae (Click Beetles) Top  |  Home Page
Agriotes sputator
Agriotes sputator
b. 6-8 mm
Agriotes sp. larva
Agriotes sp. - a Click Beetle larva (Wireworm)
b. up to 20 mm
Athous sp. larva
Athous sp. - a Click Beetle larva (Wireworm)
b. up to 25 mm
Family Cantharidae & Lampyridae (Soldier Beetles & Glow-worms) Top  |  Home Page
Cantharis nigra
Cantharis nigra - a Soldier Beetle
b. 5-7 mm
Rhagonycha fulva
Rhagonycha fulva - a Soldier Beetle
b. 8-10 mm
Cantharidae sp. larva
Cantharidae sp. - a Soldier Beetle larva
b. up to 18 mm (Photo: anon. email)
Glow-worm (male & female)
Lampyris noctiluca - Glow-worm (male & female)
b. male 10-15 mm; female 15-25 mm (Photo: W. Hester)
Glow-worm (female)
Lampyris noctiluca - Glow-worm (female)
(shown right 'glowing' in the dark; Photos: W. Hester)
Glow-worm larva
Lampyris noctiluca - Glow-worm larva
b. up to 25 mm (Photo: D. Wright)
Family Oedemeridae (Flower Beetles) Top  |  Home Page
Oedemera lurida
Oedemera lurida - a Flower Beetle
b. 5-7 mm
Swollen-thighed Beetle (male)
Oedemera nobilis - Swollen-thighed Beetle (male)
b. 8-10 mm
Swollen-thighed Beetle (female)
Oedemera nobilis - Swollen-thighed Beetle (female)
b. 8-10 mm
Family Pyrochroidae & Meloidae (Cardinal Beetles & Oil Beetles) Top  |  Home Page
Common Cardinal Beetle
Pyrochroa serraticornis - Common Cardinal Beetle
b. 10-17 mm (Photo: A. Wood)
Pyrochroa sp. larva
Pyrochroa sp. - a Cardinal Beetle larva
b. up to 30 mm
Meloe violaceus
Meloe violaceus - an Oil Beetle (female)
b. 10-32 mm (Photo: G. Tucker)
Family Dermestidae (Carpet, Hide & Larder Beetles) Top  |  Home Page
Fur Beetle or Two-spotted Carpet Beetle
Attagenus pellio - Fur Beetle or Two-spotted Carpet Beetle
b. 4-6 mm
Larder or Bacon Beetle
Dermestes lardarius - Larder or Bacon Beetle
b. 7-9 mm
Anthrenus sp.
Anthrenus sp. - a Carpet Beetle
b. 2-3 mm
Family Anobiidae & Bostrichidae (Furniture Beetles, Powder-post Beetles, etc.) Top  |  Home Page
Furniture Beetle or Woodworm
Anobium punctatum - Furniture Beetle or Woodworm
b. 3-5 mm
Woodworm damage
Adult emergence holes of Furniture Beetle (dia. 1-2 mm)
& Death-watch Beetle (dia. 3-4 mm) in a timber beam
Death-watch Beetle
Xestobium rufovillosum - Death-watch Beetle
b. 5-9 mm
Lyctus brunneus
Lyctus brunneus - a Powder-post Beetle
b. 3-6 mm
Powder-post Beetle damage
Adult emergence holes of a Powder-post Beetle
(dia. 1-2 mm) in a wooden board
Family Tenebrionidae, Lagriidae & Alleculidae (Darkling Beetles) Top  |  Home Page
Cellar Beetle
Blaps mucronata - Cellar Beetle
b. 18-25 mm
Mealworm
Tenebrio molitor - Mealworm
b. 14-16 mm
Lagria hirta
Lagria hirta
b. 7-9 mm
Family Coccinellidae (Ladybirds) Top  |  Home Page
Two-spot Ladybird (typical & black forms)
Adalia bipunctata - 2-spot Ladybird
b. 4-5 mm
Ten-spot Ladybird (typical & other forms)
Adalia decempunctata - 10-spot Ladybird
b. 4-5 mm
Fourteen-spot Ladybird
Propylea quattuordecimpunctata - 14-spot Ladybird
b. 4-5 mm
Seven-spot Ladybird
Coccinella septempunctata - 7-spot Ladybird
b. 7-8 mm
Seven-spot Ladybird larva
Coccinella septempunctata - 7-spot Ladybird larva
b. up to 10 mm
Seven-spot Ladybird pupa
Coccinella septempunctata - 7-spot Ladybird pupa
b. 7-8 mm
Harlequin Ladybird
Harmonia axyridis f. conspicua - Harlequin Ladybird
b. 6-8 mm
Harlequin Ladybird
Harmonia axyridis f. spectabilis - Harlequin Ladybird
b. 6-8 mm
Harlequin Ladybird (mating pair)
Harmonia axyridis f. spectabilis - Harlequin Ladybird
b. 6-8 mm
Harlequin Ladybird
Harmonia axyridis f. succinea - Harlequin Ladybird
b. 6-8 mm
Harlequin Ladybird
Harmonia axyridis f. succinea - Harlequin Ladybird
b. 6-8 mm
Harlequin Ladybird larva
Harmonia axyridis - Harlequin Ladybird larva
b. up to 10 mm
Sixteen-spot Ladybird
Tytthaspis sedecimpunctata - 16-spot Ladybird
b. 3-4 mm (Photo: S. Turner)
Cream-spot Ladybird
Calvia quattuorodecimguttata - Cream-spot Ladybird
b. 4-5 mm (left wing-case deformed) (Photo: J. Weir)
Orange Ladybird
Halyzia sedecimguttata - Orange Ladybird
b. 5-6 mm (Photo left: D. Desborough)
Eyed Ladybird
Anatis ocellata - Eyed Ladybird
b. 6-8 mm (Photo: J. Weir)
Pine Ladybird (mating pair)
Exochomus quadripustulatus - Pine Ladybird
b. 4-5 mm (Photo: P. & J. Jefferies)
Family Cerambycidae (Longhorn Beetles) Top  |  Home Page
Rutpela maculata
Rutpela (= Leptura) maculata
b. 12-24 mm
Rutpela maculata
Rutpela (= Leptura) maculata
b. 12-24 mm
Leptura quadrifasciata
Leptura quadrifasciata
b. 10-20 mm (Photo: J. Anderson)
Leptura aurulenta
Leptura aurulenta
b. 14-20 mm (Photo: M. Andrews)
Rhagium bifasciatum
Rhagium bifasciatum
b. 14-18 mm (Photo: S. Bean)
Rhagium mordax
Rhagium mordax
b. 14-20 mm (Photo: C. Spacie)
Large Poplar Longhorn
Saperda carcharias - Large Poplar Longhorn
b. 20-28 mm (Photo: I. McLeod)
Sawyer or Tanner Beetle
Prionus coriarius - Sawyer or Tanner Beetle
b. 25-40 mm (Photo: M. McConnon)
Family Chrysomelidae (Leaf Beetles) Top  |  Home Page
Aphthona nonstriata
Aphthona nonstriata - a Flea Beetle
b. 2-3 mm
Green Dock Beetle
Gastrophysa viridula - Green Dock Beetle
b. 4-6 mm
Green Dock Beetle larvae
Gastrophysa viridula - Green Dock Beetle larvae
b. up to 8 mm
Lily Beetle
Lilioceris lilii - Lily Beetle
b. 6-8 mm
Lily Beetle larvae
Lilioceris lilii - Lily Beetle larvae
b. up to 10 mm
Cereal Leaf Beetle
Oulema melanopus s.l. - Cereal Leaf Beetle
b. 4-5 mm
Cereal Leaf Beetle larva
Oulema melanopus s.l. - Cereal Leaf Beetle larva
b. up to 8 mm
Blue Willow Beetle
Phratora vulgatissima - Blue Willow Beetle
b. 4-5 mm
Phratora sp. larva
Phratora sp. - a Willow Beetle larva
b. up to 8 mm
Chrysolina polita
Chrysolina polita
b. 6-9 mm
Rosemary Beetle
Chrysolina americana - Rosemary Beetle
b. 6-8 mm (Photo: anon. email)
Rosemary Beetle
Chrysolina americana - Rosemary Beetle
b. 6-8 mm (Photo: S. Bayman)
Bloody-nosed Beetle
Timarcha tenebricosa - Bloody-nosed Beetle
b. 11-18 mm
Small Bloody-nosed Beetle
Timarcha goettingensis - Small Bloody-nosed Beetle
b. 8-13 mm
Timarcha sp. larva
Timarcha sp. - a Bloody-nosed Beetle larva
b. up to 20 mm (Photo: M. Wills)
Thistle Tortoise Beetle
Cassida rubiginosa - Thistle Tortoise Beetle
b. 6-8 mm
Thistle Tortoise Beetle larva
Cassida rubiginosa - Thistle Tortoise Beetle larva
(part-covered by excrement) b. up to 8 mm
Thistle Tortoise Beetle pupa
Cassida rubiginosa - Thistle Tortoise Beetle pupa
b. 6-8 mm
Family Anthribidae, Attelabidae & Curculionidae (Weevils) Top  |  Home Page
Cramp-ball Fungus Weevil
Platyrhinus resinosus - Cramp-ball Fungus Weevil
b. 11-14 mm (Photo: A. Allain)
Hazel Leaf-roller Weevil
Apoderus coryli - Hazel Leaf-roller Weevil
b. 6-8 mm
Nettle Weevil
Phyllobius pomaceus - Nettle Weevil
b. 7-9 mm
Polydrusus splendidus
Polydrusus splendidus
b. 6-7 mm
Figwort Weevil
Cionus sp. - Figwort Weevil
b. 3-4 mm
Figwort Weevil larvae
Cionus sp. - Figwort Weevil larvae
b. up to 5 mm
Apple Blossom Weevil
Anthonomus pomorum - Apple Blossom Weevil
b. 3-4 mm
Apple Blossom Weevil (damage to apple blossom)
Anthonomus pomorum - feeding damage to apple blossom
(flowers remain closed with dead petals attached)
Vine Weevil
Otiorhynchus sulcatus - Vine Weevil
b. 7-10 mm (Photo: C. Walford)
Family Scolytidae (Bark Beetles) Top  |  Home Page
Shot-hole Borer (small male & larger females)
Xyleborus dispar - Shot-hole Borer (male & females)
b. 2-4 mm
Shot-hole Borer damage
Xyleborus dispar - Shot-hole Borer damage
(apple orchard with damaged trees)
Shot-hole Borer damage
Xyleborus dispar - Shot-hole Borer damage
(bore-hole & tunnelling damage; hole dia. circa 2 mm)
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Copyright © 2014 David Kendall