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Species Picromerus bidens

efficient bug - Picromerus bidens - male - female Stink Bug000 - Picromerus bidens Stinkbugs - Picromerus bidens - male - female Mating stink bugs and caterpillar meal?! - Picromerus bidens - male - female Predatory Stink Bug nymph - Picromerus bidens Picromerus bidens Picromerus bidens Bug - Picromerus bidens
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Hemiptera (True Bugs, Cicadas, Hoppers, Aphids and Allies)
Suborder Heteroptera (True Bugs)
Infraorder Pentatomomorpha
Superfamily Pentatomoidea
Family Pentatomidae (Stink Bugs)
Subfamily Asopinae (Predatory Stink Bugs)
Genus Picromerus
Species bidens (Picromerus bidens)
Other Common Names
Spiked Shieldbug (UK)
Explanation of Names
Picromerus bidens (Linnaeus 1758)
Size
11-14 mm(1)
Identification
large laterally-projecting spine at humeral angle; tibiae typically tricolored: brown at the "knee", pale in the middle, and reddish apically
Range
ne NA: adventive in ne. US (ME-NY) & adjacent Canada (NS-ON); native to the Palaearctic (1)(2)(3)(4)
Season
mostly: June-Sept (BG data)
Food
caterpillars, esp. webworms and tent caterpillars(2)
Life Cycle
gregarious during first two instars and phytophagous, but gradually disperses in later instars and becomes predacious (1)
Remarks
earliest NA record: ME 1932(1)
potentially useful predator of certain leaf-feeding insects (e.g., pine sawfly larvae)(4)
Internet References