Halloween Pennant

Orange and brown wings on a dragonfly in June, and the whole outfit screamed somebody raided the Halloween decoration bin four months early. The Halloween pennant (Celithemis eponina) wore broad, amber-orange wings banded with dark brown in a pattern so distinctly autumnal that the common name arrived finished, and the dragonfly carried the costume from May through September at North Louisiana ponds without any seasonal justification for the color scheme. About an inch and a half to an inch and three-quarters long, the Halloween pennant perched at the tips of tall vegetation at pond margins, waved gently in the breeze on flexible stems the way a flag waved on a flagpole (the "pennant" part of the name), and tolerated wind that grounded every other dragonfly at the same pond. A Halloween pennant riding a weed tip in a fifteen-mile-per-hour breeze rocked and swayed without releasing the perch while every blue dasher at the same pond sat grounded in the base of the vegetation waiting for the wind to quit. North Louisiana's ponds, lakes, and marshes support Halloween pennant populations across the 26 parishes from May through September. The dragonfly bred at permanent and semi-permanent standing water with emergent vegetation at the margins, and the flight season covered the peak summer months with enough overlap into late spring and early fall that the Halloween pennant flew alongside every other summer dragonfly in the region. The October Wings Orange-amber base color on all four wings, crossed by broad dark brown bands, created the Halloween color combination that no other North Louisiana dragonfly approached. The wing pattern read at every distance from fifty feet to fifty inches: a dragonfly with orange-and-brown wings at a North Louisiana pond belonged to the Halloween pennant before any body feature or behavior entered the identification. No other dragonfly at any North Louisiana pond wore orange wings. Amber intensity varied by sex and age, with males wearing slightly deeper amber-orange and females wearing slightly paler amber-yellow. Old individuals of both sexes darkened as the wing membranes aged, and an old male Halloween pennant's wings showed a richer, deeper orange than a fresh male's wings at the same pond. The aging darkened the costume without changing the identification: orange-and-brown banded wings at a North Louisiana pond meant Halloween pennant regardless of the shade. Wing shape sat broad and rounded, broader per body length than most North Louisiana skimmers, and the broad wing area combined with the dark banding gave the Halloween pennant the most visually prominent wings at any pond where the pennant flew. A Halloween pennant in flight showed the orange-and-brown wing pattern with every wingbeat, and the flight looked more colorful than any other dragonfly's flight at the same pond because the wings carried the color rather than the body. The wing pattern served a dual function: species identification for the observer and possible Batesian mimicry for the predators. Some researchers suggested the Halloween pennant's wing pattern mimicked paper wasps or other stinging insects at a distance, and the orange-and-brown banding shared enough visual similarity with wasp coloring that a bird scanning the pond margin might have passed on the "wasp" without checking closer. The mimicry hypothesis stayed debated, but the visual similarity between a Halloween pennant's wing pattern and a paper wasp's body pattern existed whether the mimicry functioned or not. The Wind Rider Wind riding sat the Halloween pennant's signature behavioral trait: the ability to perch on flexible stems in wind that grounded every other dragonfly at the same pond. A Halloween pennant on a tall, flexible weed stem in a twelve-to-fifteen-mile-per-hour wind rode the stem the way a flag rode a pole, rocking back and forth with each gust, wings held slightly open, body angled into the wind, and the whole assembly (stem plus dragonfly) swaying as a unit without the dragonfly losing grip or launching into uncontrolled flight. Wind riding made the Halloween pennant the last dragonfly flying (or at least the last dragonfly perching) at a North Louisiana pond during windy conditions that sent the dashers, pondhawks, and other skimmers into hiding. A breezy July afternoon at a farm pond that showed zero blue dashers on the weed tips showed two Halloween pennants riding the tallest flexible stems with the casual balance of a dragonfly that treated wind as furniture rather than as weather. Broad wings that gave the Halloween pennant its visual distinctiveness also gave the dragonfly the aerodynamic surface area to stabilize on the swaying stem. Broad wings in calm air created drag. Broad wings in wind created a sail that the dragonfly oriented into the breeze for balance, and the wind-facing wing position kept the dragonfly on the stem the way a weathervane stayed on the pole by always pointing into the wind. Turn sideways to the wind and the broad wings caught the gust broadside and knocked the dragonfly off the perch. Face into the wind and the broad wings cut the airflow and the dragonfly rode the stem all afternoon. The Butterfly Flight Halloween pennant flight between perches looked more butterfly than dragonfly: slow, fluttering, and wandering rather than fast, direct, and purposeful. A Halloween pennant flying between two perch stations at a North Louisiana pond took a meandering path at one to three feet above the water that covered twice the straight-line distance, and the fluttering flight style confused first-time observers who filed the sighting under "butterfly" until the landing posture (wings spread flat, horizontal body) corrected the classification. The slow, fluttering flight sat an adaptation to the wind-riding lifestyle rather than a flight deficiency. A dragonfly that rode flexible stems in high wind needed a controlled, low-speed flight ability for the approach and the landing, and the Halloween pennant's slow flutter delivered the precision landing on a swaying stem that a high-speed approach could not match. A blue dasher approaching a weed tip at full speed hit the stationary stem and stuck. A Halloween pennant approaching a swaying stem at full speed missed the stem entirely. The pennant's slow approach matched the stem's speed, and the landing worked because both the dragonfly and the stem moved at the same pace. Sallying flights from the wind-riding perch caught gnats, midges, and small flies at short range (two to four feet), and the sally-and-return cycle on a windy day included the swaying-stem compensation that the calm-day sallies did not need. A Halloween pennant that sallied from a swaying stem, caught a gnat, and returned to the same stem landed on a perch that moved to a different position during the sally, and the dragonfly adjusted the return flight to meet the stem where the stem swayed to rather than where the stem sat when the sally launched. Dawn on the Dew Halloween pennants roosted overnight on vegetation at the pond margin, and the morning dew that covered North Louisiana's grass and weed stems during the humid summer nights also covered the roosting dragonfly's wings. A Halloween pennant at dawn on a dew-covered weed stem wore water droplets across the amber-and-brown wings that caught the early sunlight and turned each droplet into a tiny lens magnifying the wing pattern beneath, and the dew-covered pennant at first light gave the dawn visitor a visual encounter the afternoon visitor never saw. The dew evaporated within thirty minutes of direct sun hitting the roosting stem, and the dragonfly remained motionless on the perch until the sun warmed the thorax to flight temperature and dried the wings enough for flight. A Halloween pennant that roosted on an east-facing stem caught the first morning sun, dried the wings earlier, and launched into the day's first patrol flight before a pennant that roosted on a west-facing stem finished drying. Roost orientation affected the morning start time, and the east-facing roosters flew first. Morning warm-up at a North Louisiana pond in July lasted roughly thirty to forty-five minutes between first sun contact and first flight, and the warm-up window gave the dawn observer a stationary, close-range view of the Halloween pennant with wings spread flat absorbing maximum solar heat. The warm-up posture showed the full wing pattern at maximum exposure, and a photograph during the warm-up caught the wings at their flattest and most fully displayed. Rain and the Pennant Rain grounded the Halloween pennant the same way rain grounded every other dragonfly, but the pennant's high, exposed perch took the first drops before the lower-perching species felt the rain start. A Halloween pennant on the tallest stem at a North Louisiana pond got wet first, and the pennant descended from the high perch to the sheltered base of the vegetation before the dashers on the lower weed tips registered the rain event. The early-warning descent from the high perch gave the pennant a head start on finding sheltered roosting position during thunderstorms. Post-rain recovery at the high perch happened faster than expected because the exposed, tall stem dried in the wind and the sun before the sheltered lower stems dried, and the pennant returned to the high perch within minutes of the rain stopping while the dashers on the lower, slower-drying stems waited ten to fifteen minutes longer. The high perch that caught the rain first also dried first, and the pennant's post-rain timing advantage gave the dragonfly first access to the afternoon's remaining feeding hours. The Pond Generalist Halloween pennants bred at a wide range of standing-water habitats: farm ponds, lake margins, marshes, beaver ponds, retention ponds, and any North Louisiana water body with emergent vegetation at the margins and open water for oviposition. The habitat breadth matched the blue dasher's catholic taste in water bodies, and the Halloween pennant showed up at most of the same ponds the dashers occupied, perching higher on the same vegetation and flying in the same winds that grounded the dashers below. Population density at North Louisiana ponds sat moderate: lower than the blue dasher's dominant numbers but higher than the four-spotted pennant's edge-of-range scarcity. A typical farm pond during July supported two to six Halloween pennants alongside ten to twenty blue dashers, and the pennant's moderate density made the dragonfly a regular encounter at most pond visits without reaching the dasher's ubiquity. The pennant coexisted with the blue dasher, the pondhawk, and the four-spotted pennant at shared ponds by sorting into a different perch height (taller, more flexible stems than the dasher used) and a different wind regime (flying in wind that grounded the competitors). The height and wind separations reduced direct territorial confrontations between the Halloween pennant and the blue dasher at shared ponds, and the two species fed at different heights in different wind conditions without interfering with each other's hunting. Mating on the Sway Halloween pennant mating happened in the wind-riding habitat the male defended, and the courtship involved the male displaying the orange-and-brown wings from the tallest flexible stem at the territory while the approaching female evaluated the wing quality and the territory quality simultaneously. A male with undamaged wings, bright amber coloring, and a territory centered on the best oviposition habitat attracted the most females, and the male's perch choice (tallest, most visible, best-positioned stem) did more mate-attraction work than any behavioral display. Tandem formation and wheel mating happened on the flexible stems or in flight, and the pair sometimes completed the wheel formation while the stem swayed in the wind, adding a balance challenge to the mating sequence that the calm-air species never experienced. A mating pair of Halloween pennants in wheel formation on a swaying cattail stem in a ten-mile-per-hour breeze held the mating posture through the gusts that rocked the stem, and neither member of the pair released grip during the wind-driven oscillations. Females oviposited by flying over open water and tapping eggs onto the surface in rapid dipping flights, with or without the male guarding from a nearby perch. The oviposition flight path covered twenty to forty feet of open water at the pond center, and the female dipped the abdomen into the water every one to two seconds while flying forward. A female Halloween pennant ovipositing at a Ouachita Parish farm pond deposited several hundred eggs across the pond surface in under two minutes, and the dipping flight happened fast enough that the female's orange wings blurred into a continuous amber streak across the water. Oviposition flights attracted attention from observers at the bank because the orange wings showed more vividly during the low, water-skimming flight than during the high perching, and the female's egg-tapping run across the pond surface gave the observer the best moving view of the wing pattern the pennant offered. A female Halloween pennant dipping eggs at a North Louisiana farm pond on a sunny July afternoon turned the oviposition flight into the most colorful dragonfly performance at the pond, and the performance lasted under two minutes before the female climbed back to the vegetation and the amber streak disappeared. Males guarding from the high flexible stem watched the ovipositing female from above and chased rival males that approached within ten feet of the dipping flight path. The guard duty required the male to balance on the swaying stem, scan the airspace for rivals, and launch intercepts from an unstable platform that the calm-perching species never dealt with. A gust that hit the stem during the male's launch offset the intercept angle, and the male compensated mid-flight by adjusting the approach the way a sailor adjusted course when a wave shifted the boat. Photographing the Wind Rider Dragonfly photographers found the Halloween pennant a special challenge and a special reward because the wing pattern delivered the most colorful dragonfly photograph in North Louisiana and the swaying perch delivered the most frustrating autofocus experience. A pennant on a swaying stem in a breeze moved continuously through the focal plane, and the camera's autofocus tracked the stem's oscillation rather than the dragonfly's position, resulting in a gallery of sharp weed-tip photos with blurry dragonflies attached. Solution: wait for the calm moment. Every gust cycle included a brief stillness at the top and bottom of each oscillation where the stem paused before reversing direction, and the photographer who timed the shutter release to the stillness at the top of the sway caught the pennant in focus with the wings spread and the amber-orange pattern at full intensity. A burst of three frames at the top of each sway cycle captured at least one sharp image per attempt, and the sharp image showed the wing banding, the body color, and the stem-riding posture in a photograph that the observer's eye remembered but the camera struggled to freeze. Calm-day photographs at North Louisiana ponds captured the Halloween pennant on a stationary stem with the wings spread flat and the orange-and-brown pattern at full visibility, and the calm-day portrait sat easier to achieve than the wind-riding action shot but less behaviorally interesting. The wind-riding shot told the pennant's story while the calm-day shot showed the pennant's costume, and both earned the photographer's time at the pond. The Summer Calendar Halloween pennants in North Louisiana flew from May through September, with peak numbers in June and July when the emergence wave from the spring naiad population crested. May brought the first adults at warm-water ponds. June built the population to peak density. July maintained peak numbers. August began the decline as the oldest adults died and the emergence rate dropped. September brought the last adults before the cooling weather ended the flight season. The flight season overlapped completely with the blue dasher's season, and both species occupied shared ponds for the entire duration. The calendar gave the Halloween pennant no temporal niche separation from the dasher, and the coexistence at shared ponds depended entirely on the spatial separation (perch height) and the behavioral separation (wind tolerance) rather than on any timing difference. Warm autumns extended the September end date into early October at the warmest North Louisiana ponds, and a Halloween pennant on a weed tip at a farm pond in early October finally wore the orange-and-brown wings during the month the wings dressed for. October pennants sat rare enough that the sighting earned a journal entry. The October Pennant A Halloween pennant on a weed tip at a North Louisiana pond during the first week of October wore the orange-and-brown wings during the month the wings dressed for, and the calendrical coincidence gave the October sighting a satisfaction the June sighting did not carry. October pennants sat rare in the 26 parishes because the flight season usually ended in September, and a warm October that extended the season into the first week of the month delivered the pennant's only opportunity to fly during the namesake holiday's month. A Halloween pennant photographed at a North Louisiana pond on October 31 represented the rarest and most seasonally appropriate dragonfly photograph in the region, and the photograph required a warm Halloween (afternoon highs above 70), a surviving pennant at an accessible pond, and the photographer's willingness to check the pond rather than assuming the dragonfly season ended six weeks earlier. The odds sat long. The photograph sat worth it. The Naiad Below Halloween pennant naiads developed in the pond-bottom mud and debris following the standard skimmer naiad plan, and the development lasted several months to a year depending on water temperature and food availability. The naiad fed on mosquito larvae, midge larvae, and small aquatic invertebrates with the labium-snap technique, and the naiad's size at emergence ranked moderate among North Louisiana's pond-breeding dragonflies (smaller than a darner naiad, larger than an amberwing naiad). Emergence peaked in May and June as the spring warming triggered the final larval stage, and the emerging adults climbed plant stems above the waterline at dawn, split the thorax, and pulled free of the larval skin in the same sequence every dragonfly naiad used. The shed larval skin (exuvia) on a cattail stem at a North Louisiana pond in late May confirmed Halloween pennant emergence at the site, and the exuviae accumulated on the stems through the emergence peak. The Mosquito Contribution Halloween pennants ate mosquitoes during the summer flight season alongside the blue dashers and pondhawks at shared ponds, and the pennant's wind-tolerance gave the dragonfly a mosquito-control contribution on breezy days that the wind-grounded dashers and pondhawks could not match. A windy July afternoon at a North Louisiana farm pond that held zero active dashers held two active Halloween pennants sallying for mosquitoes from the swaying stems, and the two pennants provided the only dragonfly-based mosquito control at the pond during the wind event. The wind-day contribution mattered more than the calm-day contribution because the calm days already had twenty dashers eating mosquitoes while the windy days had zero dashers and two pennants. Two pennants ate fewer mosquitoes per hour than twenty dashers, but two pennants ate infinitely more mosquitoes per hour than zero dashers, and the mathematical advantage on windy days gave the Halloween pennant a pest-control niche that no other dragonfly at the same pond filled. What Hunts the Halloween Pennant Exposed, high perching positions that gave the Halloween pennant territorial advantage also gave every visual predator a clear target. Eastern kingbirds and great crested flycatchers sallied for Halloween pennants from utility wires and high branches, and the pennant's colorful wings made the dragonfly more visible to the scanning bird than the clear-winged dashers perching lower at the same pond. Larger dragonflies caught Halloween pennants during flight. A common green darner intercepted a fluttering Halloween pennant between perches at a North Louisiana pond with a speed advantage the pennant's slow flight could not counter. Spiders strung webs across gaps in the pond-margin vegetation at heights that intercepted the pennant's sallying flights, and the broad wings that gave the pennant wind-riding ability also gave the spider web more surface area to catch. A Halloween pennant that flew into an orb-weaver web at a pond margin stuck on the broad, banded wings before the body contacted the silk. Where to Look North Louisiana ponds, lake margins, and marshes from May through September. Scan the tallest, most flexible stems at the pond margin for the orange-and-brown wings waving in the breeze. A Halloween pennant on a swaying weed tip showed the wing pattern against the sky at distances where the body stayed invisible, and the orange wings did the identification work the closer approach usually demanded. Windy days at North Louisiana ponds gave the best Halloween pennant encounters because the wind cleared the competing dragonflies from the perches and left the pennants riding the stems alone. A breezy July afternoon at a farm pond that looked dragonfly-empty to the observer scanning for dashers held Halloween pennants on the tallest stems that the wind-grounded observer dismissed as too exposed for any dragonfly to use. Any farm pond, municipal reservoir, or lake margin in the 26 parishes with emergent vegetation and open water supported Halloween pennants during peak season. Black Bayou Lake, Poverty Point Reservoir, Caney Lakes, Lake Claiborne, and every parish-road farm pond with a cattail fringe put Halloween pennants within binocular range from the bank. The Wind Test The simplest way to find Halloween pennants at a North Louisiana pond: visit on a breezy day. A ten-to-fifteen-mile-per-hour wind at a farm pond in July cleared every blue dasher and pondhawk from the perches and left the Halloween pennants riding the tallest flexible stems alone. The wind test removed the visual competition from the other orange-less, wind-intolerant species and gave the observer an uncluttered view of the pennants swaying on the stems against an otherwise dragonfly-empty landscape. A calm day at the same pond put Halloween pennants among twenty other dragonfly species on the vegetation, and the pennant's orange wings stood out but competed for attention with the blue dashers, the pondhawks, the darners, and every other species the calm air supported. A windy day at the same pond put the pennants alone on the stems, and the solo performance gave the observer the Halloween pennant experience without the summer-dragonfly crowd diluting the encounter. Where to Learn More Dennis Paulson's Dragonflies and Damselflies of the East covers the Halloween pennant's distinctive wing pattern, the wind-riding behavior, and the wasp-mimicry hypothesis that the orange-and-brown banding may support. OdonataCentral.org maintained records and photographs for the Halloween pennant's Louisiana distribution. Experiencing This Dragonfly: Accessibility Notes Halloween pennants make no sound human ears detect, but the orange-and-brown wing pattern made visual detection the easiest of any North Louisiana dragonfly. The wing color showed at distances where every other dragonfly's wings stayed invisible, and a dragonfly with orange wings at a North Louisiana pond settled the identification from fifty feet without binoculars. For anyone with mobility limitations, the Halloween pennant's high, exposed perching position and distinctive wing color made the dragonfly visible from any accessible vantage with a clear view of the pond margin. A seated observer at any accessible North Louisiana pond during summer spotted the orange wings on the tallest stems from the farthest distance any dragonfly identification happened at. The wings found the observer before the observer found the wings.

Accessibility

Halloween pennants make no sound human ears detect, but the orange-and-brown wing pattern made visual detection the easiest of any North Louisiana dragonfly. The wing color showed at distances where every other dragonfly's wings stayed invisible, and a dragonfly with orange wings at a North Louisiana pond settled the identification from fifty feet without binoculars.

For anyone with mobility limitations, the Halloween pennant's high, exposed perching position and distinctive wing color made the dragonfly visible from any accessible vantage with a clear view of the pond margin. A seated observer at any accessible North Louisiana pond during summer spotted the orange wings on the tallest stems from the farthest distance any dragonfly identification happened at. The wings found the observer before the observer found the wings.