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Genus Adelothyreus

Adelothyreus downiei - male Adelothyreus dejeani Bonvouloir - Adelothyreus dejeani False Click Beetle - Adelothyreus dejeani False Click Beetle - Adelothyreus dejeani False Click Beetle - Adelothyreus dejeani Adelothyreus barrae  Microrhagus carinicollis? - Adelothyreus Adelothyreus? - Adelothyreus - female
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Polyphaga (Water, Rove, Scarab, Long-horned, Leaf and Snout Beetles)
No Taxon (Series Elateriformia)
Superfamily Elateroidea (Click, Firefly and Soldier Beetles)
Family Eucnemidae (False Click Beetles)
Subfamily Melasinae
Tribe Dirhagini
Genus Adelothyreus
Numbers
18 species are distributed world wide, mostly in the Neotropical region. Of those, three species are found in the Nearctic region.
Size
3.0-5.0 mm long.
Identification
Metacoxal plates are parallel sided and basally widened antennal grooves will distinguish the group from all other closely related genera within the tribe.


Key:

1 Size less than 4.0 mm long. Eastern US...........................................................................2
1' Size more than 4.0 mm long. Arizona endemic........................................................A. barrae Muona

2 Anterior lateral pronotal ridge slightly angled. Weak striae on elytra.......................A. dejeani Bonvouloir
2' Anterior lateral pronotal ridge strongly angled. Strong striae on elytra..........................A. downiei Muona
Range
One species is an Arizona endemic. Other species is restricted in the southern U.S. Last species is more widespread in eastern U.S.
Habitat
Largely found in forested areas.
Season
Late April through August.
Food
Unknown.
Life Cycle
Unknown.
Print References
Muona, J. 2000. A Revision of the Nearctic Eucnemidae. Acta Zoologica Fennica. 212: 106 pp.