Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Calendar
Upcoming Events

Interested in a 2022 BugGuide gathering in New Mexico?

Photos of insects and people from the Spring 2021 gathering in Louisiana, April 28-May 2

National Moth Week 2020 photos of insects and people.

Photos of insects and people from the 2019 gathering in Louisiana, July 25-27

Discussion, insects and people from the 2018 gathering in Virginia, July 27-29

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Previous events


TaxonomyBrowse
Info
ImagesLinksBooksData

Species Languria mozardi - Clover Stem Borer

Flotsam lizard beetle - Languria mozardi Clover Stem Borer - Languria mozardi Clover Stem Borer - Languria mozardi Languria denticulata?? - Languria mozardi Languriini? reared from Erigeron annuus stems - Languria mozardi Black and Red Beetle on Dandelion - Languria mozardi Languria mozardi? - Languria mozardi Small leafbeetles on Goldenrod - Languria mozardi
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 Cucujoidea (Sap, Bark and Fungus Beetles)
No Taxon (Erotylid series)
Family Erotylidae (Pleasing Fungus Beetles)
Subfamily Erotylinae (Pleasing Fungus Beetles)
Tribe Languriini (Lizard Beetles)
Genus Languria
Species mozardi (Clover Stem Borer)
Explanation of Names
Languria mozardi Latreille 1807
Size
4-9 mm(1) (mostly 5-7 mm)
Identification
Antennal club emerging gradually from stem, seventh segment (base of club) less than twice as wide as preceding segments, segments only slightly dilated to inner side; head red; thorax spotless; abdomen with last three (sometimes last two, rarely just one) ventrites piceous(1)
Range
e. NA to AZ (QC-MB to FL-AZ) / n. Mex. - Map (1)(2)(3)(4)(5)
Season
Feb-Nov(1), but mostly Mar-July (5)
Food
polyphagous, but mostly hosts on Asteraceae(1), infests red clover in the southeast and alfalfa in the southwest(1), and, potentially, canola (Ward et al. 2007.)
Life Cycle
larvae and pupae in stems of dozens of plants spp. in at least 6 families(1)
Remarks
most common and widespread of our languriines(1)
See Also
told from discoidea by the lack of the median dark spot on the thorax, by the shining, not alutaceous, thorax and elytra, and generally smaller size;
from denticulata by the smooth, not sinuate, elytral apices and by the presence of more than one piceous abdominal segment;
from californica by the lack of all piceous abdomen and by the shallower punctuation on the under surface, especially on the metasternum;
from laeta by the gradual, not abrupt, emergence of the antennal club from the stem, by the lack of all piceous abdomen, and by smaller size.(1)
Print References
Girault, A.A. 1907. Oviposition of Languria mozardi Latreille. Entomol. News, 18: 366-367.
Ward, R.N., E. Cebert, and K.E. Ward. 2007. Occurrence of clover stem borer, Languria mozardi (Coleoptera: Languriidae), on canola: A new host record. Florida Entomologist, 90(4): 732-737. (Full Text)
Webster, F.M. 1888. The larva of the clover stem borer, Languria Mozardi Latreille, as a gall maker. Insect Life, 1: 119-120.
Weed, C.M. 1890. On the life-history of the clover stem borer (Languria mozardi). Bull. Ohio Agr. Exp. Sta., ser. 2, 3: 235-238.