Ironclad Beetles (Zopheridae) - 99 Species, Identification & Facts

Aulonium parallelopipedum

Aulonium parallelopipedum (Aulonium parallelopipedum) is a species in the family Zopheridae, commonly known as ironclad beetles, belonging to the order Coleoptera (Beetles). It is classified within the subfamily Colydiinae, tribe Colydiini, suborder

Bitoma carinata

Identification: readily distinguished by the dark, cylindrical body, pronotum distinctly longer than wide (emphasis added), distinctly granulate with 2 pairs of well-defined, full-length, slightly curved to sinuate carinae, and reduced interfacetal s

Bitoma crenata

This small beetle (around 3mm) is sometimes called the Saddle-backed Bitoma and the black 'saddle' on red elytra is a helpful identification guide. It also has characteristic deep ridges along the pronotum. In well wooded areas and parkland where it

Bitoma granulata

Identification: easily separated from N.American congeners by the greatly reduced eyes and the extremely flattened body extremely rare

Bitoma neglecta

Identification: similar to B. gracilis , but less elongate, generally darker and larger; pronotum wider, prosternum setose, eyes set farther apart ventrally

Bitoma ornata

Identification: the only native western species with red spots

Bitoma sulcata

Identification: the last segment (ninth) of its antenna is twice as wide as the eighth. (CBP) Type Locality: Colorado River, about Fort Yuma, Imperial Co., California

Bitoma vittata

Identification: diagnostic character: pronotum greatly explanate and distinctly narrowed basally uncommon

Colobicus parilis

possibly introduced with crop products; rarely collected

Endeitoma granulata

Endeitoma granulata (Endeitoma granulata) is a species in the family Zopheridae, commonly known as ironclad beetles, belonging to the order Coleoptera (Beetles). It is classified within the subfamily Colydiinae, tribe Synchitini, suborder Polyphaga,

Eucicones marginalis

Eucicones marginalis (Eucicones marginalis) is a species in the family Zopheridae, commonly known as ironclad beetles, belonging to the order Coleoptera (Beetles). It is classified within the subfamily Colydiinae, tribe Synchitini, suborder Polyphaga

Diabolical Ironclad Beetle

Phloeodes diabolicus

Identification: Dorsal color can vary from pale brown to dark gray. Apical part of elytra, as well as shoulders, may have creamy brown to golden patches. For a full redescription of this species please see García-Paris et al (2006).

Pycnomerus fuliginosus

A small (about 4 mm) dark grey or blackish, distinctively shaped bark beetle. Antennae with a weak 2 segmented club and all other segments transverse. Good quality images are required and specimen should be retained if possible until the record has b

Pycnomerus sulcicollis

Identification: The two thoracic grooves do not attain either apex or base, and the dorsal line between them is convex and elevated. Det. J. Gruber, 2008 Type Locality: Georgia, under pine bark.

Pycnomerus thrinax

Identification: Pronotum without trace of longitudinal wrinkles, punctures round; elytra laterally expanded above hind portion of metasternum Paratype

Synchita fuliginosa

Synchita fuliginosa (Synchita fuliginosa) is a species in the family Zopheridae, commonly known as ironclad beetles, belonging to the order Coleoptera (Beetles). It is classified within the subfamily Colydiinae, tribe Synchitini, suborder Polyphaga,

Synchita undata

The pale tan or buff elytra are marked with a darker patterning which no doubt help to camouflage this beetle against bark and in shadowy areas. The present opinion appears to be that it is associated with sooty bark disease on Sycamore (Acer pseudop

Usechus nucleatus

Identification: elytral base with an abruptly raised, forward-projecting tubercle

Zopherus championi

Identification: Triplehorn's last couplet: Pronotum with lateral white borders having only a few minute flecks of black; apical elytral ridges broadly in contact with raised sutural ridge; lateral areas of elytra more white than black; length 12-15 m

Zopherus gracilis

Identification: Entirely black; the smoothest sp. of Zopherus , with widely spaced, fine punctures & may have randomly incised, wavy lines. Northern populations, i.e. from Flagstaff & Grand Canyon area, may be more sculptured with slight tubercles, a

Zopherus opacus 0

Zopherus opacus

Identification: last key couplet: Dorsal surface of elytra between tubercles dull, opaque most like Z. uteanus Casey but also bears some resemblance to Z. granicollis ventriosus . It displays by far the dullest surface luster of any known member of t

Zopherus sanctaehelenae

Identification: last key couplet: Dorsal surface of elytra between tubercles shiny distinguished from all other North American species of the genus except opacus and the more strongly sculptured specimens of gracilis by the very fine, widely spaced e

Zopherus tristis

Identification: Entire dorsum black, with flattened elytral tubercles whose hind margins are more or less truncate; apex of elytra narrows abruptly, and descends more steeply than in other species. Pronotum with coarse punctures (some may have coarse

Zopherus xestus

Identification: Distinguished from other congeners by the trilobed callus on apical abdominal sternum: Holotype and 37 paratypes mostly from Big Bend National Park