Lycus

Distinguished from other lycid genera by the combination of reticulate elytral venation forming a net-like pattern, soft and flexible elytra that do not fully cover the abdomen, and often striking black-and-orange or black-and-red aposematic coloration. The pronotum is typically expanded laterally and may bear distinctive projections. Similar to Calopteron but differs in specific venation patterns and antennal structure.

Found in diverse terrestrial habitats including forests, woodlands, and scrublands; adults frequently observed on flowers, particularly goldenrods (Solidago spp.) and other Asteraceae.

Widely distributed across North America, with species ranging from the southwestern United States through Mexico; also present in other regions globally. Specific species such as Lycus loripes documented in Arizona and Texas.

Adult activity primarily during summer months; observations from July in Texas and Arizona indicate peak activity in mid to late summer.

Adults feed on pollen and nectar; larvae are predatory or feed on decaying wood and fungal hyphae in rotting logs.

Complete metamorphosis with egg, larval, pupal, and adult stages; larvae develop in decaying wood or under bark.

Adults are diurnal and frequently found on flowers; slow, deliberate flight pattern. When disturbed, may reflex-bleed from leg joints, releasing defensive compounds. Known to aggregate on flowers.

Adults serve as pollinators while feeding on flowers; larvae contribute to decomposition of dead wood. The genus is part of a Müllerian mimicry complex with other chemically defended insects, including moths such as Lycomorpha pholus.

Occasionally encountered by entomologists and naturalists; no significant economic impact. Some species are collected for scientific study. The bright coloration makes them conspicuous and subject of interest for nature photography.

• CalopteronSimilar net-winged beetles with reticulate elytra; distinguished by differences in antennal structure and specific venation patterns
• Lycomorpha pholusA moth species that mimics Lycus in coloration and pattern as part of a Müllerian mimicry complex; distinguished by wing structure and antennae

• net-winged beetle
• Lycidae
• aposematic coloration
• flower visitor
• Müllerian mimicry
• reticulate elytra
• defensive chemistry

• BugGuide
• Wikipedia
• GBIF taxonomy match
• iNaturalist taxon
• NCBI Taxonomy
• Catalogue of Life
• Botanizing at Salt Lick Point Land & Water Reserve | Beetles In The Bush
• Belostomatidae | Beetles In The Bush