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Species Microlarinus lypriformis - Puncturevine Stem Weevil

Imported weevil with mission to fight - Microlarinus lypriformis Imported weevil with mission to fight - Microlarinus lypriformis Microlarinus lypriformis Microlarinus lypriformis Microlarinus lypriformis Sitona? - Microlarinus lypriformis Sitona? - Microlarinus lypriformis Sitona? - Microlarinus lypriformis
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 Cucujiformia)
Superfamily Curculionoidea (Snout and Bark Beetles)
Family Curculionidae (Snout and Bark Beetles)
Subfamily Lixinae
Tribe Lixini
Genus Microlarinus
Species lypriformis (Puncturevine Stem Weevil)
Explanation of Names
Microlarinus lypriformis (Wollaston 1861)
Size
4-5 mm(1)
Identification
slightly smaller and more parallel-sided than the closely related M. lareynii(2)(1)
Range
native to India, introduced into the US for weed control purposes(2)
Food
Larvae and adults both attack puncturevine (Tribulus terrestris, Zygophyllaceae)(1)
Life Cycle
Lays eggs in the undersides of stems, branches, and the root crown. Larvae tunnel and pupate in the pith. Adults emerge from holes chewed in the upper surfaces of the stems, branches, and crowns. Adults overwinter in plant debris.
Remarks
introduced into the US as biocontrol agent in 1961(2)
Internet References