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Genus Euthysanius - Arboreal Click Beetles

Click Beetle:  Euthysanius species - Euthysanius - male Click Beetle:  Euthysanius species - Euthysanius - male Euthysanius Gravid Beetle ?  - Euthysanius - female Beetle with pectinate antennae - Euthysanius - male Elateridae - Euthysanius  Euthysanius sp. ? - Euthysanius Euthysanius of some kind ? - Euthysanius - male
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Polyphaga (Water, Rove, Scarab, Longhorn, Leaf and Snout Beetles)
Superfamily Elateroidea (Click, Firefly and Soldier Beetles)
Family Elateridae (Click Beetles)
Subfamily Cebrioninae
Genus Euthysanius (Arboreal Click Beetles)
Numbers
nearctica.com lists 9 species in this genus
Size
body length of males 15-20 mm; females up to 35 mm
Identification
males of E. lautus reddish-brown with grooved elytra and feathery, 12-segmented pectinate (comb-like) antennae; females have very short elytra and lack flight wings, exposing most of the abdominal segments
Range
restricted to California
Habitat
males are found under the bark of pine (Pinus spp.) and are attracted to light; the flightless females are found crawling over the ground
Food
not presently known whether larvae are predators of other bark insects or feed in rotting wood
Remarks
Read comments under image #25439.
Internet References
pinned adult image of male plus common name reference, description, habits (Torrey Pines State Reserve, California)
classification and distribution; PDF doc (Paul Johnson, 2003, South Dakota State U.)