# White-Margined Burrowing Bug (*sehirus cinctus*) The White-Margined Burrowing Bug, Sehirus cinctus, is a fascinating small insect belonging to the true bug family Cydnidae. These charismatic creatures are notable for their distinct black bodies bordered with white or cream margins, making them visually striking despite their diminutive size. Unlike many insects, Sehirus cinctus exhibits remarkable maternal care, with females guarding their eggs and newly hatched nymphs, a behavior more commonly associated with vertebrates. They are primarily herbivores, specializing in feeding on the seeds of various plants, particularly those in the mint family. Their unique combination of striking appearance, specialized diet, and dedicated parental investment makes them a captivating subject for naturalists and a testament to the diverse strategies found within the insect world. - **Category:** [Insects](https://www.snappit.app/explore/categories/insect) - **Rarity:** Common - **Danger:** 1/5 · Very low - **Snaps:** 2 - **Habitat:** Found in open woodlands, fields, gardens, and disturbed areas where their host plants, particularly members of the mint family, are abundant, often burrowing shallowly in the soil beneath these plants. ![White-Margined Burrowing Bug](https://inaturalist-open-data.s3.amazonaws.com/photos/375498443/medium.jpeg) Photo: Sam Kieschnick, CC BY 4.0 · [iNaturalist](https://www.inaturalist.org/photos/375498443) ## Appearance The White-Margined Burrowing Bug is characterized by its glossy black, somewhat flattened oval body, typically measuring between 4.5 and 6.5 millimeters in length. Its most distinctive feature is a prominent white or cream-colored margin that outlines the entire body, from the head to the tip of the abdomen, providing a sharp contrast to its dark background. The antennae are dark, and the legs are black. While they possess wings, they are often observed crawling on the ground or on host plants. The overall appearance is compact and robust, resembling a tiny, highly polished beetle from a distance, but closer inspection reveals the characteristic true bug mouthparts and wing structure. ## Taxonomy - **Kingdom:** Animalia - **Phylum:** Arthropoda - **Class:** Insecta - **Order:** Hemiptera - **Family:** Cydnidae - **Genus:** Sehirus ## Interesting facts - Despite their name, 'burrowing bugs,' they typically only burrow shallowly into loose soil or leaf litter, rather than creating extensive tunnels. - Females have been observed 'brooding' their egg masses, physically covering them with their bodies to protect them from predators and possibly regulate temperature and humidity. - The White-Margined Burrowing Bug is one of the few insect species known to exhibit parental care, with females actively guarding their eggs and nymphs. - They communicate through substrate vibrations, which are particularly important during courtship and for maternal-offspring interactions. ## Special abilities - **Maternal Care:** Females of Sehirus cinctus are known to guard their egg masses and newly hatched nymphs, protecting them from predators and occasionally moving the eggs or young to more favorable locations. - **Subterranean Retreat:** These bugs are adept at burrowing into loose soil, especially at the base of their host plants, providing them with shelter from predators and adverse environmental conditions. - **Seed Predation:** They possess specialized mouthparts adapted for piercing the seed coats of plants and extracting the internal nutrients, making them highly efficient seed consumers. ## Measurements & details - **Length:** 0 cm - **Wingspan:** 0-1 cm - **Weight:** 0 kg - **Lifespan:** 0-1 years - **Clutch Size:** 20-60 - **Incubation:** 7-14 days ## Diet & Feeding The White-Margined Burrowing Bug is a specialist herbivore, feeding primarily on the seeds of various plants. Both nymphs and adults use their piercing-sucking mouthparts to extract nutrients from developing and mature seeds. - **Primary Foods:** seeds of mint family plants, seeds of nettle family plants, seeds of figwort family plants, seeds of various herbaceous plants - **Foraging Method:** Foraging ## Ecological connections - **Host plant:** Horehound (*Marrubium vulgare*) — A primary food source, the bugs feed on its seeds. - **Eaten by:** [Ground Beetle](https://www.snappit.app/explore/ground-beetle) (*Carabidae (family)*) — Adults and nymphs can be preyed upon by various ground-dwelling predators. - **Parasite:** Scelionid Wasp (*Scelionidae (family)*) — These small wasps can parasitize the eggs of burrowing bugs. - **Eaten by:** [American Robin](https://www.snappit.app/explore/american-robin) (*Turdus migratorius*) — Many generalist insectivorous birds will consume burrowing bugs if encountered. ## Safety **Danger:** 1/5 · Very low No special safety notes yet. ## Frequently Asked Questions ### How to identify White-Margined Burrowing Bug? Look for six legs, antennae, three body sections and the shape of the wings. Beetles have hardened front wings; flies have just one working pair. Tiny insects may need a close view before their group is clear. Insect Identifier: upload a photo and compare the visible details. ### How long is White-Margined Burrowing Bug? 0 cm ### What is White-Margined Burrowing Bug's wingspan? 0-1 cm ### How much does White-Margined Burrowing Bug weigh? 0 kg ### How long does White-Margined Burrowing Bug live? 0-1 years ### What does White-Margined Burrowing Bug eat? The White-Margined Burrowing Bug is a specialist herbivore, feeding primarily on the seeds of various plants. Both nymphs and adults use their piercing-sucking mouthparts to extract nutrients from developing and mature seeds. ### Where is White-Margined Burrowing Bug usually found? Found in open woodlands, fields, gardens, and disturbed areas where their host plants, particularly members of the mint family, are abundant, often burrowing shallowly in the soil beneath these plants. ### How does White-Margined Burrowing Bug hunt? Foraging ## Where to spot - [Haskell-Baker Wetlands](https://www.snappit.app/guides/places/haskell-baker-wetlands) — Kansas, US · Nature Reserve - [Missouri Botanical Garden](https://www.snappit.app/guides/places/missouri-botanical-garden) — Missouri, US · Botanical Garden ## More Insects - [Common Eastern Bumble Bee](https://www.snappit.app/explore/common-eastern-bumble-bee) (*Bombus impatiens*) - [Spotted Lanternfly](https://www.snappit.app/explore/spotted-lanternfly) (*Lycorma delicatula*) - [Brown-belted Bumble Bee](https://www.snappit.app/explore/brown-belted-bumble-bee) (*Bombus griseocollis*) - [Eastern Carpenter Bee](https://www.snappit.app/explore/eastern-carpenter-bee) (*Xylocopa virginica*) --- Source: [White-Margined Burrowing Bug Facts — Snappit](https://www.snappit.app/explore/white-margined-burrowing-bug)