The frons is entire, not notched, and the mouthparts project forward and down. A single species occurs in the U.K. Selatosomus Stephens, 1830 is a Holarctic and Oriental group of about 70 species classified into five subgenera of which 4 are Palaearctic and another is Nearctic. They all have a special technique to escape from danger. The adults can be abundant in sandy or desert regions and can occur in huge numbers at light traps, they frequent flowers and are considered important pollinators in some regions. The click beetle is the only beetle that makes a distinctive clicking sound. Claws simple or only feebly toothed or flanged, and without basal setae. Named after their ability to violently launch themselves backwards with a clicking noise (thought to be both an anti-predator defence and a self-righting mechanism), there are 73 species of click beetle in Britain. Dicronychus includes about 40 Palaearctic species of which about 20 occur in Europe, D. equisetioides Lohse, 1976 occurs very locally around the north Devon and Somerset and south Wales coasts. in Sericus brunneus (Linnaeus, 1758) the female has a patterned pronotum whereas the male is unicolourous. The colouration is generally drab; black to pale brown and sometimes with various red to yellow markings and some are metallic, in tropical regions there are many vividly coloured and beautiful species and some are bioluminescent with pale markings to the pronotum or the elytra indicating the source of the light. Two species of Pityobius occur in the United States including P. anguinus LeConte, 1853, known as the Bipectinate Click Beetle, a reference to the antennal structure. Adrastus Eschscholtz, 1829 is a Palaearctic genus of about 25 species; of the 20 European species 2 extend to the U.K. Most species have a very unusual antennal structure, sometimes with a distinct scape and distal segments widely pectinate. Phyllophoridae All are saproxylic with predatory larvae. Wireworms grow up to 25mm long and they are thin, yellowish-brown larvae that have three pairs of small legs at the head end 2-spotted Larva. Includes about 400 species in 2 tribes and more than 25 genera and there are many more waiting to be described, especially from tropical and sub-tropical areas. The pronotum is generally elongate to quadrate and convex, sloping down to a flattened posterior margin and with strong impressions towards the base. This is a Neotropical group including 2 genera of unmistakable and often strikingly beautiful elaterids. generally proportionally long and either slender or robust; the pro- and mesocoxae are round and globose and the metacoxae transverse, flat and mostly hidden under expanded femoral plates. They occur among vegetation in the spring and have root-feeding larvae. Many temperate species are diurnal but there are some common and widespread species that will only be found nocturnally e.g. In the narrow ‘modern’ sense the subfamily includes 9 tribes and more than 1000 species. They are about 25mm long with shiny, yellow-orange bodies. species of Agriotes, wider and narrower interstices may alternate. Subprotelaterinae Fleutiaux, 1920 or Thylacosterninae Fleutiaux, 1920 are defined, and the modern definition includes some groups formerly regarded as distinct families e.g. The Cebrionidae Latreille, 1802 was variously classified as a distinct subfamily of the Elateridae but following modern molecular analysis it is now included as two tribes of the Elaterinae; Cebrionini and Aplastini. L. corpulentus Candéze, 1889, the one-eyed Madagascan click beetle or L. goudti (Laporte de Castelnau, 1836). is also displayed by some eucnemids, sometimes so closely that they are almost indistinguishable, and this is certainly the case with the world fauna; there has been much shuffling of groups between the families in the past and some are still assigned tentatively. On hot nights they may enter houses, but are not pests there. as adults, and in such species mating occurs early in the year soon after they become active. Click beetles are usually black or brown, with some species bearing red or yellow markings. Megapenthes Kiesenwetter, 1858 is a cosmopolitan genus of more than 200 species and of the 7 Palaearctic species only one occurs in Europe including the U.K., the saproxylic M. lugens (Redtenbacher. The head is mostly prognathous to opisthognathous with the vertex convex and the mouthparts directed downwards, the clypeus is either separated from the frons and articulated, or it is fused to the frons which forms two strong lateral keels. Variegated Carpet. Plastocerinae Pangauridae The majority of temperate species are below 20mm while the longest U.K. species is Stenagostus rhombeus (Olivier, 1790) at 21mm. The scutellum is cordate. This small group includes 5 species of Subprotelater Fleutiaux, 1920 distributed in Northern Australia and various islands north to Japan. This video is of a Click Beetle doing his thing. Adults feed on pollen and nectar etc. Plastoceridae A single species occurs in the U.K. Cidnopus Thomson, C.G., 1859 is a Holarctic genus containing 18 species, 7 are European of which one occurs in the U.K. Kibunea Kishii, 1966 Includes the Eurasian K. minuta (Linnaeus, 1758), which occurs in the U.K., and 3 species in Japan. The figeater beetle (Cotinis mutabilis) is a green-colored beetle that is commonly found in yards, compost heaps, and mulch.Belonging to the beetle family Scarabaeidae, “fig” beetles have a semi-glossy green shell with orange-colored edges.Turning the beetles over, you will notice striking metallic green belly and legs. Using vacuums to remove them and sealing up the cracks, gaps, and holes they use to enter homes are the best ways to reduce click beetle problems. Deflexed epipleura are present at least basally and extend variously along the lateral edge, the apices may be completely or separately rounded, truncate, sinuate or with one or two spines, or they may be produced  individually  or as a pair  into a point. They are sometimes called ‘elaters’, ‘skipjacks’, ‘snapping beetles’ or ‘spring beetles’. Some species e.g. Ludiidae All elaterids can perform this click as can some eucnemids but here it is much less powerful and any jumping produced tends to be feeble by comparison. 1842). Of the 5 Palaearctic species of Ischnodes Germar, 1844, I. sanguinicollis (Panzer, 1793) is British; it is a local and rare insect occurring in southeast England. With over 4,000 species in the British Isles, mostly very small, beetles are often portrayed as being a ‘difficult’ group, the preserve of experts, but many are large and brightly coloured and easy to identify in the field. Although there is great diversity in the family the general form of the adults will quickly be appreciated and recognized, both in the field and in specimens or from pictures. The size of this subfamily has changed over recent decades as many genera have been transferred to the Adelocerini Candéze, 1857 (Pyrophorinae). Many fossil elaterids belong to the extinct subfamily Protagrypninae.[13]. Longhorned beetles feed on firewood and timber with a high moisture content. This is a large and cosmopolitan subfamily including at least 1100 described species in 40 genera and 2 tribes although the validity of these is questionable; the Nyctorini Semenov & Pjatakora, 1936 includes the single genus Nyctor Semenov & Pjatakora, 1936 and is often considered synonymous with the Cardiophorini Candéze, 1860. The eyes are generally large and protruding with small facets. Adults of most species are short-lived and have a correspondingly short season although during this time they may be locally very common; spring and summer are the best times to sample them. [3] Clicking is mainly used to avoid predation, although it is also useful when the beetle is on its back and needs to right itself. The promesothoracic ‘click’ mechanism is generally well-developed; the Prosternal process extending behind the procoxae and fitting into a deep mesocoxal cavity, the anterior margin of the process is usually produced forward to form a variously reflexed mentum. They are usually of equal width although this varies and in some, e.g. The genus Denticollis Piller & Mitterpacher, 1783 is sometimes considered to be the only genus of this tribe. The group is dominated by the cosmopolitan genus, Creative Commons Attribution 4.0 International License. The least diverse region is Australia. The cuticle is often reticulate or variously microsculptured and has very fine micropunctures which may be granulate. They are a cosmopolitan beetle family characterized by the unusual click mechanism they possess. All beetles have biting mouthparts. Agrypninae They are very typical ‘click beetles’ with a long and relatively straight or only weakly curved outline and convex or only weakly flattened dorsal and ventral surfaces. The tarsal claws have at least one hair at the base. Size 7 to 10 mm. Outbreaks are controlled by deep ploughing and crop rotation but pesticides are used against serious infestations although the larvae are known to have a remarkable ability to recover from insecticide exposure. Common Click Beetle. Limoniscus Reitter, 1905 includes 5 Palaearctic species of which 2 occur in Europe and one is listed as British, The Violet Click Beetle. This is a mid to dark brown coloured click beetle, with ridged lines running down the elytra which also has yellowish hairs. The abdomen has 5 ventrites, the first four being fused. Athous Eschscholtz, 1829 is a very large Holarctic, Oriental and Neotropical genus with about 300 species in 10 subgenera; 5 species of 3 subgenera occur in the U.K. Diacanthous Reitter, 1905 is Holarctic with 7 species. Cardiophorus is the largest genus in the subfamily with more than 600 species; more than 210, all in the nominate subgenus, occur in the Palaearctic of which about 60 are European. Cardiophorinae The anterior margin of the frons is entire and the mouthparts are steeply declined forward, the antennae are serrate from the fourth segment. Adults are mostly crepuscular and may occur at light in large numbers, they feed on nectar and sap etc. Lissominae It is found at just three sites in the UK. The procoxal cavities are separate and the coxae do not project below the prosternum. Damage: The larvae (above and below) are known as wire worms, they live on plant roots and cause a large amount of damage. Apart from their black color, you can identify black beetles by their hard … The common name refers to the audible ‘click’ they produce when jumping into the air, they do this from an inverted position by rapidly forcing the Prosternal process into a cavity in the mesosternum, the purpose of which is to escape predators or simply to right themselves when upside down. Hemiopinae The elongate form etc. The  aedeagus is  trilobed; the  parameres  often with  apical  hooks. There are a few other families of Elateroideain which a few members have the same mechanism, but most elaterid subf… All the early stages are also luminescent. Adults inhabit a wide range of biotopes; the majority of temperate species are occur in woodland or wooded environments although many also occur in open situations; grassland, steppes and agricultural situations etc., some are associated with wetland habitats e.g. Other names include elaters, snapping beetles, spring beetles or skipjacks. The group is dominated by the cosmopolitan genus Agrypnus Eschscholtz, 1829 with about 500 species, more than 60 of which are Palaearctic but only 2 occur in Europe, the northern Mediterranean A. crenicollis (Ménétriés, 1832) and A. murinus (Linnaeus, 1758) which is widespread including the U.K. Species overwintering as larvae, which generally occurs underground, appear later in the spring and mate in early summer. Here is our guide to British beetle species, including where to see and how to identify. Oestodinae The tribe also includes the genus Calais Laporte de Castelnau, 1836 with more than 70 species, some of which occur in southern Europe; see the African species C. tortrix (Candéze), commonly known as the Harlequin click beetle. Most fall within the 12-30 mm range in length, though a few species can be considerably longer. Wireworms can pass easily through the soil on account of their shape and their propensity for following pre-existing burrows,[12] and can travel from plant to plant, thus injuring the roots of multiple plants within a short time. M. castanipes and M. villosus are widespread, occurring in decaying wood and under bark throughout the year and on flowers in the summer. According to modern molecular analysis this group is now classified as a tribe of the Denticollinae but we refer to it here as a distinct group because this is how it is referred to in the literature generally. Click beetles have a special hinge on their thorax, and by arching their body they can create a tension on the hinge, like a coiled spring. The greatest diversity is in the Oriental region. Other striking species may be found among the Hemirhipini Candéze, 1857, a group including 21 genera and more than 450 species. Many species show differences between the sexes in various abdominal structures. The hind angles are variously produced and often have a ridge or ridges along the dorsal surface of the extensions.