Skip to main content

Tiger Beetles: Beneficial Predators and Ecosystem Health Indicators

Originally Submitted: June 24, 2022

In South Dakota, there are around 25 species of tiger beetle (1). Tiger beetles belong to the family Carabidae (subfamily Cicindelinae) within the order Coleoptera (beetles). They are commonly found in open, sandy landscapes, and are known for their incredible ground speed and maneuverability while in flight. They are also important bioindicators, because they are very sensitive to environmental changes. The presence of tiger beetles is a great sign that an ecosystem is healthy and should not be disturbed.

    Life Cycle and Identification

    Two views of a bronzed tiger beetle resting on sand. The wing covers are bronze with whiteish tan markings along the margins.
    Figure 1. Bronzed tiger beetle (Cicindela repanda). Courtesy: Derek Hauffe,

    Adult tiger beetles vary in color depending on the species. Most are green, blue, purple, or brown, with metallic hues and distinct patterns or markings. They range in size from approximately 2/5 to 4/5 of an inch in length and have long, slender legs that allow them to run quickly (Figure 1). Tiger beetle adults have dramatic, round eyes and large sickle-shaped mandibles, both of which aid in catching prey (Figure 2).

    In South Dakota, most tiger beetle species have just one generation per year. Females create vertical burrows in sandy substrate and lay one egg per burrow before covering it up to deter predators (Figure 3). Once the eggs hatch, larvae move upwards in their burrows, but remain inside for safety. Larvae will develop through three growth stages (instars), which can span multiple years depending on the species and/or food availability. Tiger beetle larvae can be categorized by their distinct “hooks” on the fifth abdominal segment that allows them to remain securely in place within their burrow (Figure 4). They also have a large, shovel-like head with big sickle-shaped mandibles. Once larvae are mature, they retreat into the burrow, seal off the entrance and pupate. After a few weeks, the adult emerges in early summer and remains active throughout the summer months. Adults are capable of reproducing almost immediately to begin the lifecycle over again.

      Close up of the head of a six-spotted tiger beetle with a metallic greenish-blue body and large creamy white and black mouthparts.
      Figure 2. Large, round black eyes and large sickle-shaped mandibles of a six-spotted tiger beetle (Cicindela sexguttata). Courtesy: Jim Eckert,
      A female tiger beetle laying eggs in the sand.
      Figure 3. A female twelve spotted tiger beetle (Cicindela duodecimguttata) laying eggs into sandy substrate. Courtesy: Denis A. Doucet,
      Larva with long creamy-white abdomen and black head and legs. The blue circle is showing the two hooks used to keep the larva secure in its burrow.
      Figure 4. A dorsal view of a tiger beetle larva with a creamy white body and dark legs and head. Courtesy: Robert Graham, MD,

      Adult Feeding Behavior

      A metallic blue-green tiger beetle feeding on a light green caterpillar.
      Figure 5. A tiger beetle feeding on a caterpillar. Courtesy: David Cappaert,

      Tiger beetle adults are considered generalist predators, meaning they prey on a wide variety of insects and other arthropods (Figure 5). Some of these include caterpillars, grasshoppers, ants, beetles and spiders. They are voracious eaters and capable of capturing prey due to many beneficial characteristics. The coloration of different adult species allows them to blend into their surroundings without being detected by other insects. Once an insect passes by, they ambush their prey, secure them with their large mandibles and consume them. Adults prefer to hunt open areas (i.e. sandy margins along water) during the day, where they can run at high speeds to capture prey. Tiger beetle adults are also strong fliers and can quickly move away from one area to another.

        Larvae Feeding Behavior

        A larva in its burrow waiting for prey. The circle is showing how the head of the larva blocks the entrance into the burrow.
        Figure 6. A tiger beetle larva in its burrow with its head level to the surface. It patiently waits for prey to wander by. Courtesy: Whitney Cranshaw, Colorado State University,

        The time it takes for tiger beetle larvae to develop mostly depends on how often they can obtain food. Similar to adults, the larvae are also generalist predators and feed on a variety of arthropods. They use the hooks on their fifth abdominal segment to secure and support their bodies in the burrow while they hold their large head near the entrance (Figure 6). Once prey wanders near the burrow entrance, the larva thrusts its body upwards, uses its large mandibles to capture it and pulls it down into the burrow, where it is consumed.

        Conservation and Management

        Observing environmentally sensitive insect species, such as tiger beetles in the landscape is a great sign that an ecosystem is healthy and supporting a diversity of both prey and predators. Some steps to take to provide proper habitat and encourage tiger beetle presence include:

        1. Not disturbing areas where tiger beetles are already found.
        2. Providing flat, open areas without vegetation near a water source.
        3. Planting a diversity of plants to support a diversity of insects.
        4. Avoiding insecticide use if possible.

        Tiger beetles provide a beneficial service and, therefore, do not need to be managed. However, they are capable of producing a painful bite if mishandled (does not require treatment).


        1. Spomer, S.M., M.L. Brust, D.C. Backlund, and S. Weins. 2008. Tiger Beetles of South Dakota and Nebraska. Department of Entomology, University of Nebraska, Lincoln.