Texas is home to dozens of cicada species that fill backyards, parks, and open woodlands with some of the loudest insect sounds on Earth every summer. The state’s vast size and range of habitats, from humid eastern forests to arid western desert, support a remarkable diversity of annual cicadas. While Texas does not host the famous synchronized periodical broods that make national headlines in the eastern United States, its resident species are abundant, varied, and unmistakable once the heat arrives.
Which Species Live in Texas
Texas supports cicadas from several genera, and species composition changes considerably from one part of the state to another. Research conducted in Big Bend National Park alone documented 12 species, each sorted into different altitudes and habitat types within the park’s relatively compact geography.1Journal of Thermal Biology. Influence of altitude, habitat and microhabitat on thermal adaptation of cicadas from Southwest Texas (Hemiptera: Cicadidae) Among the most common genera across the state are Neotibicen (formerly classified under Tibicen), Diceroprocta, and Pacarina. The Diceroprocta texana species complex, named for the state itself, includes closely related taxa that researchers have found differ significantly in body structure, mating calls, and heat tolerance.2Annals of the Entomological Society of America. Reevaluation of the Diceroprocta texana Species Complex (Hemiptera: Cicadoidea: Cicadidae)
Texas cicadas are overwhelmingly “annual” species. That label is slightly misleading: individual nymphs still spend multiple years developing underground, but because cohorts overlap, some adults emerge every summer. This is different from the periodical cicadas of the genus Magicicada, whose entire populations surface in synchronized 13- or 17-year events. A few Magicicada broods have historically reached the easternmost edges of Texas, but for the vast majority of Texans, the cicadas they encounter year after year are the annual type.
Where in Texas You Will Find Them
You can find cicadas in virtually every region of the state, but the species mix shifts dramatically with geography and elevation.
The Trans-Pecos region and Big Bend are especially well-studied. Researchers there found that cicada species sort themselves by altitude and habitat, from desert scrub at low elevations to mountain woodlands higher up. Species living in lower, hotter areas tolerate significantly higher body temperatures before becoming incapacitated than those found at cooler, higher-elevation sites.1Journal of Thermal Biology. Influence of altitude, habitat and microhabitat on thermal adaptation of cicadas from Southwest Texas (Hemiptera: Cicadidae) Microhabitat matters just as much: a species that perches on sun-exposed branches during the hottest hours needs more heat tolerance than one that stays in the shade.
Central Texas, including the Hill Country and the Edwards Plateau, is where many residents first associate summer with the incessant buzzing. Live oak, pecan, and mesquite trees host large populations. The chorus usually begins in late May or June and builds through July and August. East Texas, with its denser forests of pine and hardwood, supports different species adapted to wetter, more shaded conditions. The Rio Grande Valley and Gulf Coast prairies have their own assemblages.
Urban and suburban areas are no exception. Cicadas thrive in cities wherever established trees provide root systems for nymphs and perching sites for calling males. Research on urban heat islands in a large metropolitan area found that warmer minimum nighttime temperatures significantly predicted higher cicada densities, even after accounting for tree cover and development age.3PubMed Central. Urban heat island effect on cicada densities in metropolitan Seoul Texas cities like Dallas, Houston, San Antonio, and Austin, which experience intense summer heat and have mature urban tree canopies, provide prime habitat for heat-tolerant species.
How Cicadas Produce That Sound
The buzzing, pulsing calls that dominate Texas summers are produced exclusively by males. The sound-generating organ is the tymbal, a ribbed membrane on each side of the abdomen. When muscles attached to the tymbal contract, the membrane buckles inward with a click. When the muscles relax, the tymbal snaps back because of the natural elasticity of chitin, the material insect exoskeletons are made from.4Nature Communications. The tymbal of a cicada: nature’s sound-generating metastructure
High-speed imaging has shown that each buckling sequence starts at the rear end of the tymbal and travels forward across the ribs, then reverses direction as the membrane rebounds. Each rib’s collapse produces its own click, and the rapid succession of these buckling-unbuckling cycles is what creates the continuous buzzing we hear. The hollow abdomen acts as a resonating chamber, amplifying frequencies near roughly 3,800 Hz while filtering out others.4Nature Communications. The tymbal of a cicada: nature’s sound-generating metastructure The result is an insect that is effectively using its own body as a tuned speaker.
Different species produce distinctly different calls, which is one of the primary ways entomologists tell them apart. Within the Diceroprocta texana complex, acoustic differences between closely related taxa are significant and serve as a key diagnostic tool alongside body measurements.2Annals of the Entomological Society of America. Reevaluation of the Diceroprocta texana Species Complex (Hemiptera: Cicadoidea: Cicadidae) For a homeowner, the practical upshot is that the particular buzzing pattern you hear can often identify the species in your yard. Some Texas cicadas produce a steady, high-pitched whine; others pulse or click in rhythmic bursts. The volume can exceed 90 decibels at close range, roughly comparable to a lawn mower.
Surviving the Texas Heat
Texas summers routinely push past 38°C (100°F), and cicadas have evolved physiological tricks to handle it. One of the more remarkable adaptations is thermoregulatory sweating. The species Tibicen dealbatus, common across much of Texas, controls fluid secretion to cool itself through evaporative heat loss. This process is mediated by eicosanoids, a class of signaling molecules that also play roles in inflammation and immune responses in many animals.5Journal of Comparative Physiology B. Eicosanoids mediate control of thermoregulatory sweating in the cicada, Tibicen dealbatus (Insecta: Homoptera) Cicadas are one of very few insect groups known to actively sweat, a fact that surprises many people who assume sweating is a mammalian trick.
The Big Bend research found that a cicada’s maximum voluntary tolerance temperature and heat torpor temperature correlate with the altitude and habitat where it lives.1Journal of Thermal Biology. Influence of altitude, habitat and microhabitat on thermal adaptation of cicadas from Southwest Texas (Hemiptera: Cicadidae) These are behavioral thresholds: the point at which a cicada will abandon its perch to seek shade, and the higher point at which it becomes immobilized by heat. Desert-floor species can push their limits higher than mountain species. The diversity of thermal niches available across Texas, from the Chisos Mountains to the Chihuahuan Desert floor and from the humid Gulf Coast to the dry Panhandle, helps explain why the state can support so many different cicada species simultaneously.
Life Underground
The cicadas you see and hear represent only the final chapter of a much longer life. After mating, females use a saw-like ovipositor to cut slits in small tree branches and deposit eggs inside. When the eggs hatch, the tiny nymphs drop to the ground, burrow into the soil, and attach to tree roots, where they feed on xylem fluid for years.
This root-feeding, subterranean lifestyle is ancient. Fossil cicada nymphs with digging forelegs and piercing-sucking mouthparts show that cicadas had adopted underground root-feeding by the mid-Cretaceous period, over 100 million years ago.6Nature Communications. Mesozoic evolution of cicadas and their origins of vocalization and root feeding The basic life strategy you see in a Texas backyard has been running since dinosaurs walked overhead.
For annual cicada species in Texas, the underground phase typically lasts two to five years, depending on the species and local conditions. Because individual cohorts overlap, adults emerge every summer even though each individual spent multiple years developing below. When a nymph is ready, it tunnels to the surface, usually at dusk, climbs a tree trunk or fence post, and splits its exoskeleton along the back. The adult pulls itself free, expands its wings, and hardens over a few hours. The hollow brown shell left behind, the exuvia, is the papery husk you find clinging to bark all summer long. Adults typically live four to six weeks aboveground, spending most of that time calling, mating, and laying eggs.
Egg-Laying Damage to Trees
The oviposition process can cause visible damage to small branches. When a female saws into a twig to deposit eggs, the tissue beyond the cut often dies and turns brown, a phenomenon called “flagging.” During a heavy emergence, flagging can make young trees look alarmingly ragged.
Research on periodical cicadas has documented strong preferences for certain tree species. Dogwood, slippery elm, box elder, and honey locust are heavily attacked, while smooth sumac and eastern red cedar are rarely chosen.7Oecologia. Spatial variability in oviposition damage by periodical cicadas in a fragmented landscape The number of egg-laying scars per stem also drops with distance from where the cicadas emerged and increases where stems are sparse, producing a dilution effect: more trees in an area means fewer eggs per tree.7Oecologia. Spatial variability in oviposition damage by periodical cicadas in a fragmented landscape
For Texas homeowners, this means young, recently planted trees are the most vulnerable during a heavy emergence year. Mature trees shrug off flagging without lasting harm; the lost twigs are a trivial fraction of overall canopy. If you have saplings or newly transplanted fruit trees, physical netting with mesh smaller than about a centimeter is the most effective protection. Insecticides are generally discouraged because they kill cicadas without meaningfully reducing damage and harm beneficial insects in the process. The simplest strategy is to delay planting new trees until after peak emergence if a big year is expected, though this is harder to time with annual species than with the predictable periodical broods.
Cicada Killers and the Food Web
If you see a wasp the size of your thumb hovering over a lawn in Texas, it is almost certainly an eastern cicada killer, Sphecius speciosus. These solitary wasps are impressive predators that hunt cicadas in flight, paralyze them with a sting, and haul them back to underground burrows. Each paralyzed cicada serves as a living food supply for a single wasp larva. Across the Americas, the five species in the genus Sphecius collectively hunt cicadas from eight different genera and at least 38 species or subspecies.8Entomological News. Cicada Prey of New World Cicada Killers, Sphecius spp. (Dahlbom, 1843) (Hymenoptera: Crabronidae)
Cicada killers are not aggressive toward people despite their alarming size. Males will patrol territories and hover near passersby, but they lack stingers entirely. Females can sting but rarely do unless physically grabbed. The wasps are beneficial, aerating soil with their burrows and regulating cicada numbers. Their nesting behavior creates its own miniature ecosystem: parasitic flies in the family Miltogrammatinae lurk near burrow entrances and deposit larvae onto cicadas as the wasps carry them inside, freeloading on the wasp’s hard-won provisions.9Florida Entomologist. Body size relationship between Sphecius speciosus (Hymenoptera: Crabronidae) and their prey: Prey size determines wasp size
Beyond cicada killers, Texas cicadas are eaten by birds, lizards, spiders, and small mammals. Because cicadas are large-bodied and protein-rich, a heavy emergence year represents a meaningful pulse of food into the local ecosystem. Some birders in central Texas note increased activity from species like mockingbirds and grackles during peak cicada weeks.
Telling Texas Cicadas Apart by Ear
Because different species call at different pitches, rhythms, and times of day, you can learn to identify several common Texas cicadas without ever seeing one. The steady, high-frequency whine that seems to come from everywhere on a hot afternoon is usually a Neotibicen species. A sharper, more staccato buzzing heard at dusk or dawn often belongs to a Diceroprocta species.
Timing matters as much as tone. Some species call primarily during the hottest hours, a behavior linked to their higher heat tolerance. Others restrict calling to cooler periods, dawn, dusk, or after dark. In the Big Bend region, this temporal separation helps species coexist by reducing acoustic competition across the same stretch of habitat.1Journal of Thermal Biology. Influence of altitude, habitat and microhabitat on thermal adaptation of cicadas from Southwest Texas (Hemiptera: Cicadidae)
Temperature itself modulates call characteristics. Warmer air speeds up muscle contractions, shifting the tempo and sometimes the apparent pitch of a call. A cicada calling at noon in San Antonio in August may sound noticeably different from the same species calling on a cooler morning. Researchers studying the Diceroprocta texana complex found that thermal parameters were part of the suite of differences distinguishing closely related taxa, suggesting that call variation in response to heat is at least partly built into their biology rather than being a simple passive effect of temperature on muscle speed.2Annals of the Entomological Society of America. Reevaluation of the Diceroprocta texana Species Complex (Hemiptera: Cicadoidea: Cicadidae)
Smartphone apps that record and analyze insect sounds have made backyard identification more accessible, though many still struggle to distinguish cicada species accurately because recordings are often clipped or drowned in background noise. A quiet recording taken within a few meters of a calling male, ideally with a note of the time and air temperature, gives you the best chance at a correct identification. Several university extension programs in Texas maintain online sound libraries for common local species, which can serve as useful comparison references.