Beetles

Beetles outnumbered every other insect order on the planet, and North Louisiana's 26 parishes held their share of the global majority without most residents noticing anything beyond the ladybug on the rose bush and the June bug at the porch light. Seven beetle groups covered in the NLW library represent the beetles a North Louisiana resident encountered most reliably, and the collection ranged from the rainbow scarab wearing metallic green inside a cow patty to the six-spotted tiger beetle sprinting across a garden path to the Asian lady beetle crawling across the bedroom ceiling in January.

Every beetle in the lineup did something the observer benefited from, annoyed the observer during a specific season, or both.

The Dung Beetles

Dung beetles located fresh cow patties within five minutes of deposit, buried the dung underground through rolling and tunneling, suppressed fly populations by up to eighty percent per colonized pat, and recycled pasture nutrients into the soil at rates no composting operation matched. Rollers shaped balls and pushed them across the pasture in the classic scarab pose. Tunnelers dug beneath the pat and pulled dung underground. Dwellers bred inside the pat without moving the material. All three guilds worked the same cow patty simultaneously, and the pat disappeared within weeks at beetle-active pastures.

The rainbow scarab earned a separate article by wearing metallic green, copper, and gold coloring on a half-inch body that tunneled beneath the same cow patties every other dung beetle worked. Males carried curved horns and fought rival males in underground tunnels for access to females, and the horn fights ranked among the most dramatic insect confrontations in the 26 parishes despite happening in the dark beneath a cow patty where nobody watched.

The Ladybugs

Three ladybug species dominated North Louisiana gardens and earned separate articles for three different reasons. Polished lady beetles wore spotless, glossy orange-red elytra without a single dot and belonged to the native ladybug fauna that occupied the 26 parishes before the Asian invasion. Convergent lady beetles wore twelve black spots and two converging white pronotum dashes, ate forty to sixty aphids per day, and represented the "original ladybug" most North Louisiana residents grew up recognizing before the Asian replacement arrived.

Asian lady beetles wore variable coloring (zero to nineteen spots on backgrounds ranging from pale yellow to deep red to nearly black), carried a diagnostic M-shaped marking on the pronotum, invaded every house in every parish every October by the hundreds, and stained the curtains when crushed. The Asian beetle ate more aphids per day than either native species and invaded more houses per fall than either native species entered, and the agricultural benefit and the residential nuisance coexisted in the same beetle at different seasons without the homeowner connecting the July garden hero to the October ceiling pest.

The Rove Beetles

Rove beetles hid under every rock, every piece of bark, and every compost pile in the 26 parishes wearing short wing covers that left the abdomen exposed and flexible, running faster than any other ground beetle, and curling the exposed abdomen in a scorpion bluff that carried no sting. Rove beetles represented the largest beetle family on Earth and the most species-rich beetle family in North Louisiana, and the family's ground-level invisibility hid an ecological contribution (fly-larva suppression, soil-pest predation, decomposition acceleration) that exceeded most other beetle families' contributions without any human observer documenting the work.