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Multitude-Of-Moths.Pdf Small and gray, grand and garish ... moths of all kinds thrive in New Hampshire’s rare pine barrens habitat t’s just after midnight on a balmy night in April. We’re shire, 11,000 species in North America and 110,000 in the pine barrens forest of Pine River State Forest in species in the world. By contrast, there are only 28,000 I Ossipee, trying to stay awake. It’s pitch dark, except species of butterflies worldwide (mostly in the tropics) for the headlamp on Jeff Lougee’s head and the weird and fewer than 1,000 species in the U.S. and Canada. blue glow of a black light illuminating a small sheet hanging between two trees. From Plain to Gorgeous Lougee is a stewardship ecologist for The Nature Many moths, like the one Lougee just collected, are Conservancy’s New Hampshire chapter and he’s here, in fairly nondescript — entomologists jokingly call them the midst of pitch pines, scrub oaks and low LGMs or Little Gray Moths. But many are quite sweet blueberry, determined to collect moths. BY ERIC ALDRICH distinctive and colorful. You’ve surely admired He’s spent the past four hours watching the some of the glamorous celebrities of the moth sheet, waiting for moths. world, like the cecropia moth, with its fuzzy reddish- When a dark gray moth finally flutters onto the sheet brown body, orange and white markings and distinctive and settles for a moment, Lougee carefully scoops it up eye spots on the wings. In the spring, maybe you’ve seen with a Mason jar and quickly screws on the lid. “Looks the rosy maple moth, with its bright pink and yellow like a pine pinyon moth,” he says. “You can tell by these wings. And of course, there’s the luna moth, the grand little back markings on the forewing. In New Hampshire, diva of moths. this moth is only found in the pitch pine forests of Carroll “Some of them are outstandingly beautiful,” says County.” Donald S. Chandler, a professor of zoology at the Univer- On this night, Lougee collected only five specimens sity of New Hampshire. “Some of them are big and — a very slow night of “mothing.” By comparison, a continued on next page warm, moonless night in summer in the pine barrens will yield as many as 200 moth specimens. Those moths are Eric Aldrich is director of communications for The Nature among an estimated 2,500 moth species in New Hamp- Conservancy of New Hampshire. © ERIC ALDRICH PHOTOS WILDLIFE JOURNAL • September/October 2004 15 continued from previous page From Egg to Moth © ERIC ALDRICH PHOTO beautiful, like the luna moth. And Butterflies and moths share a fairly similar life some of them are tiny and delicate history. Both go through four stages: egg, pupa, and colorful.” larva (or caterpillar) and adult. On reaching its The most beautiful, if you ask larval stage, a moth caterpillar will find a quiet Chandler, are the so-called micros — place where it will make the transition to an adult. so small you could fit four or five of Some species spin a silk cocoon attached to a them on a penny. Under a micro- branch. Others make the transition underground, scope, their splendor shines. Bands of or go inside a folded leaf. Inside, the caterpillar gold or silver. Patches of iridescent becomes a pupa and its body transforms into a sort blue. Very of soup. Its metamorphosis into a moth can take delicate, bril- days, weeks or even months, depending on the liant and little species. understood. Once emerged, the adult moth has four wings: Jeff Lougee of The Nature In fact, many two on top called forewings and two “hind” wings Conservancy sometimes collects as entomolo- © ERIC ALDRICH PHOTO underneath. Most adult moths live only two weeks many as 200 moth specimens in a gists don’t or so; others a few days or a few months. And single night. bother col- Three micro moths while some will eat during this time, others will lecting them; they’re too on a dime. not, focusing instead on reproducing and avoid- fragile, too hard to identify and too hard to prepare ing predators. Once the female lays eggs, there’s for collections. little else for her to do. As curator of UNH’s insect collection, Chan- Much of the moth’s role in the ecosystem — dler has tediously identified and mounted hundreds especially among New Hampshire’s species — is Better of moths. Within the collection’s 700,000 insect to eat, according to UNH’s Don Chandler. Only a understanding specimens — from beetles to flies — are some few species here are pollinators. Most fill their 2,000 moth species. These are moths, mind you, ecological purpose as caterpillars ... eating and of moths will lead not butterflies, which occupy a much smaller eating. They’re like little gardeners, he says. Eat- to better habitat number of nearby drawers. ing leaves and other pieces of plants stimulates management. plants to grow. Other moth caterpillars help re- cycle the soil by eating detritus. Moth or Habitats and Moths You can find moths virtually anywhere in New Butterfly? Hampshire. Different habitats produce different While there’s no foolproof rule for moths, in both abundance and diversity. Oak forests, for instance, have a relatively huge vari- distinguishing moths and butterflies, ety of species and abundance of individual moths. both members of the order Chandler has collected certain moths in the Lepidoptera, here are some clues: Seabrook sand dunes and others in silver maple • Moths tend to rest with wings flat, flood plain forests near Dalton. He’s collected 232 species in Spruce Hole kettle bog near Durham. © VICTOR YOUNG PHOTO while butterflies, with some excep- tions, rest with wings folded upwards Some of the rarest moth species in the state are over their back. found in the remnant pine barrens, such as those in the Concord and Ossipee areas. According to • Moths tend to be nocturnal or dusk/ Cecropia moth Dale Schweitzer, a New Jersey-based moth and dawn flyers, while most butterflies fly butterfly expert with The Nature Conservancy, during the day. pine barrens (like those found from Maine through • All moths have a bristle or bunch of the Mid-Atlantic states) “are the habitat for global bristles, called a frenulum, locking and regional moth rarities. Pitch pine/scrub oak the forewing and hindwing together; barrens are the place to look. There’s no other © VICTOR YOUNG PHOTO butterflies don’t have this feature. habitat that comes close to having the rarities.” • Most moths have tapering, feathery In the Concord pine barrens, which is habitat or hairlike antennae. Butterflies have for the endangered Karner blue butterfly, Chan- Painted lady butterfly a knob at the tip of the antennae. dler has collected some 578 moth species. N.H. Fish and Game has also done scientific monitor- 1616 September/OctoberSeptember/October 20042004 •• WWILDLIFEILDLIFE JJOURNALOURNAL ing of moths, according to Celine Goulet, a biolo- gist with the Department’s Nongame and Know Your © VICTOR YOUNG PHOTO Endangered Wildlife Program. Better understand- ing of all the moths and butterflies in this distinctive habitat will lead to better manage- Moths ment, Goulet said. And that may ultimately prevent common moths from becoming uncommon and Moths come in many families or rare moths from vanishing altogether. groups, but most belong to just a few. Luna moth Managing Moth Habitats There are the silk moths (Saturnidae) — medium to big moths, most of which The same is true for the Ossipee pine barrens. do not feed as adults. Good examples In the summer of 2002, University of Vermont are the luna moth or the io moth. graduate students Claire Dacey and Jonathan Kart took an intensive look at the Ossipee, with Then there are the sphinx moths ©ROGER IRWIN PHOTO Dacey looking at the habitat and vegetation and (Sphingidae), which are probably the Kart looking at the moths. The project was orga- easiest to recognize. They’re medium nized and sponsored by The Nature Conservancy, to large and have long bodies. They’re which has protected 2,000 acres in the Ossipee also fast fliers; some hover and feed Hummingbird moth pine barrens since 1988. Seven hundred acres of from flowers. Good examples are the that are classic pitch pine/scrub oak habitat. five-spotted hawk moth, the laurel That summer, Kart collected more than 2,500 moth and the hummingbird moth. individual moths, comprising 246 species. Of those, six species he collected are considered Another big group is the Arctiidae, rare. They have strange and exotic names, such as which includes tiger moths. Some Zanclognatha martha and Glena cognataria. have bright colors, a warning sign to © JOHN HIMMELMAN PHOTO Since Kart’s initial work, the Conservancy’s Jeff birds that they’re distasteful. And there Lougee has done the follow-up collecting, gath- are the owlet moths (Noctuidae). This Common oak moth ering moths at times and places that Kart couldn’t. is the biggest family, with nearly 3,000 Thousands of years ago, after the last Ice Age, species in North America. Most are pitch pines and scrub oaks sprouted from the nocturnal, like miniature owls. Many sandy plains of what’s now Ossipee, Freedom, have a triangular shape, such as the Madison, Tamworth and surrounding towns. What common oak moth. has long been part of that ecosystem is fire. Pitch pines thrive in fire-prone ecosystems because There are a few others. For © JOHN HIMMELMAN PHOTO their seeds can rapidly colonize and germinate in instance, even the casual moth ob- soils exposed by fire.
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