Clerinae

Latreille, 1802

Genus Guides

Aulicus
Enoclerus(checkered beetles)
Opilo
Perilypus
Placopterus(checkered beetles)
Priocera
Thanasimus(checkered beetles)
Trichodes(checkered beetles)

Clerinae is a of checkered beetles ( Cleridae) comprising numerous distributed across tropical and temperate regions worldwide. The subfamily includes diverse with varied ecological associations, including flower-visiting and predatory . Taxonomic revisions have substantially expanded recognized diversity, with many genera such as Neorthrius, Xenorthrius, Erymanthus, Eunatalis, Tillicera, and Enoclerus undergoing recent systematic study. Some lineages show strong biogeographic patterns linked to Gondwanan origins and Andean vicariance events.

Trichodes bicinctus by (c) Catherine C. Galley, some rights reserved (CC BY), uploaded by Catherine C. Galley. Used under a CC-BY license.

Trichodes ornatus by (c) Ken-ichi Ueda, some rights reserved (CC BY). Used under a CC-BY license.

Pronunciation

How to pronounce Clerinae: //ˈklɛrɪnaɪ//

These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.

Identification

Members of Clerinae are distinguished from other clerid primarily by antennal structure: are dorsoventrally compressed and expanded from antennomere 3 onwards, with antennomeres 5–9 (or beyond) broader than long and densely vested with long setae. This antennal modification is particularly diagnostic for the Tillicera group. Additional subfamily-level characters require examination of genitalic and other internal structures. -level identification relies on detailed examination of punctation, color pattern, and male genitalia; comprehensive keys are available for several revised genera.

Images

Habitat

associations vary by and . The Tillicera genus group and related are associated with flowering vegetation. Some Enoclerus species are documented from yucca associations in arid regions of the southwestern United States and Mexico. Eleale species have been observed foraging on flowers in Australia. The occupies diverse life zones from tropical lowlands to temperate forests and arid zones.

Distribution

distribution with strong representation in the Indo-Australian region (India, Burma, Thailand, Java, Sumatra, Borneo, Philippines, China, and other parts of Asia), Central and South America (including Chilean temperate forests and Andean regions), Australia, and North America (southwestern United States, Mexico). Some show Gondwanan distribution patterns with southern temperate affinities.

Behavior

Flower foraging has been documented in Eleale aspera in Australia, with these beetles visiting flowers. Members of the Tillicera group possess specialized antennal on the surface, suggesting chemosensory functions related to or mate location. The Clerinae as a whole is presumed predatory, consistent with -level characteristics of Cleridae, though specific prey associations are not documented in the available sources for most .

Ecological Role

Potential through flower visitation (documented in Eleale). As members of Cleridae, clerines are generally predatory and likely function as of other insects, though specific roles are not detailed in available sources. Some lineages may contribute to of pest insects.

Similar Taxa

ThaneroclerinaeAnother of Cleridae; distinguished by different antennal structure and body form, with less pronounced antennal expansion and setation
TarsosteninaeClerid with more slender, less modified and different tarsal structure
KorynetinaeClerid typically with more elongate body form and less dramatically expanded antennomeres

More Details

Taxonomic Diversity

Recent revisions have substantially expanded recognized : Neorthrius (61 ), Xenorthrius (50 species), Erymanthus (16 species), Eunatalis (22 species), and the Tillicera group (40 species across six genera). Many species were described as new in the last two decades.

Phylogenetic and Biogeographic Research

Cladistic analysis of Calendyma and Epiclines supports Gondwanan origin with subsequent Andean vicariance. Flower feeding is postulated as a strong adaptive force in the evolution of these southern temperate lineages, with western of Chilean possibly evolving from ancestors in shrubby marginal of southern Chilean temperate forests.

Sensory Adaptations

Sensory organs () on the surface of the have been discovered in Tillicera and Hemitrachys, representing a previously unrecognized morphological feature that may be widespread in the .