{"id":2405,"date":"2014-08-26T10:37:55","date_gmt":"2014-08-26T15:37:55","guid":{"rendered":"https:\/\/uwm.edu\/field-station\/?p=2405"},"modified":"2024-12-26T14:53:35","modified_gmt":"2024-12-26T20:53:35","slug":"moth-collections","status":"publish","type":"post","link":"https:\/\/uwm.edu\/field-station\/bug-of-the-week\/moth-collections\/","title":{"rendered":"Moth Collections"},"content":{"rendered":"\n

Howdy, BugFans,<\/p>\n\n\n\n

Butterflies, those \u201cCharismatic Insecto-fauna,\u201d have lots of fans, and some of the more popular species even have their own websites and Citizen Science projects. Along with moths, they belong to the order Lepidoptera (scale-wings\u2014a nod to the flattened hairs that cover them). But fewer than 10% of the 175,000 (or so) species of Lepidopterans in the world are butterflies, and of the approximately 18,000 species in North America, only about 700 are butterflies.<\/p>\n\n\n\n

The rest are moths, a sometimes spectacular, sometimes anonymous bunch of insects. Compared with butterflies, moths usually seem \u201chairier,\u201d have feathery antennae, operate by night, and fold\/tent their wings over their bodies when at rest. Usually. And they tend to spin a silken cocoon within their pupal case. Within the Leptdoptera is a group called the \u201cMicrolepidoptera,\u201d an artificial (not anatomical) grouping of smaller moths with wingspreads under \u00be inch (sometimes way under). Field guides get a little \u201ciffy\u201d for the microlepidoptera.<\/p>\n\n\n\n

Most of the moths in today\u2019s collection showed up on or near the BugLady\u2019s front porch recently. Outside of their presence on a variety of collection lists, biodiversity surveys, and photo sites, the BugLady can\u2019t find a lot of natural history information about them in her library or on the web. They are small moths looking for their 15 minutes of fame Here, just a month late for National Moth Week, are:<\/p>\n\n\n\n

Yellow Nutsedge Moths<\/h2>\n\n\n\n

Jumpy pairs of Yellow Nutsedge Moths (Diploschizia impigritella<\/em>) (a.k.a. the Five-barred sedge moth) occupied leaves in the wet prairie in July, not far from their caterpillars\u2019 main food plant, Yellow nutsedge\/Chuffa. Caterpillars bore into the stems of yellow nutsedge and several other sedge species. According to bugguide.net<\/a>, the genus name comes from the Latin impiger<\/em> meaning active, quick, energetic, which certainly describes the moths that the BugLady was chasing around. The spread of their fringed wings is about \u00bd inch. They are in the Sedge moth family Glyphipteridae (notched wing) and are found over much of North America, except the Great Plains.<\/p>\n\n\n\n

\"y-nutsedge-mth14-2rz\"<\/a><\/figure>\n\n\n\n

Orange-Spotted Pyrausta<\/h2>\n\n\n\n

Yes, the BugLady often takes the camera out into the field when she is watering the dog, and that\u2019s how she photographed this lovely Orange-Spotted Pyrausta (Pyrausta orphisalis<\/em>) (a.k.a. the Orange Mint moth), in the Crambid Snout moth family Crambidae. OSP caterpillars feed on leaves of members of the mint family, like Monarda<\/em>, throughout North America. One paper suggested that they are actually beneficial to commercial mint\/mint oil operations because leaf-grazing by the first generation of caterpillars stimulates the plants to produce more mint oils, while the subsequent generations prefer the flower heads (and oils from the flowers are less desirable than leaf oils).<\/p>\n\n\n\n

\"or-spttd-pyrausta14-12\"<\/a><\/figure>\n\n\n\n

Bog Lygropia<\/h2>\n\n\n\n

Lots of moths with fancy forewings have drab hind wings (and vice-versa), but not this beauty! The Bog Lygropia (Lygropia rivularis<\/em>), also a Crambid moth, favors wet areas from southern Canada to the Near South (but possibly not the Deep South), and it apparently flew at least a quarter-mile from the nearest wetland to the BugLady\u2019s porch light. The host plant of BL caterpillars is unknown. That\u2019s it\u2014that\u2019s all the information that the BugLady could find about the BL.<\/p>\n\n\n\n

\"lygropia-rivulalis14-16rz\"<\/a><\/figure>\n\n\n\n

Snowy Urola<\/h2>\n\n\n\n

Words like \u201csleek\u201d and \u201csilky\u201d aren\u2019t typically used to describe moths, but doesn\u2019t the Snowy Urola look touchable! The Snowy urola (Urola nivalis<\/em>), another Crambid moth, is found from Maine to Texas. Its caterpillars are considered pests on a non-native ornamental shrub called Privet, but they are also said to feed on grasses. The BugLady\u2019s \u201cornamental plantings\u201d are not the type that are regularly visited by the House and Gardens<\/em> crew, and she has no idea where this quirky little moth is finding Privet.<\/p>\n\n\n\n

\"snowy-urola14-1\"<\/a><\/figure>\n\n\n\n

White-Striped Black Moth<\/h2>\n\n\n\n

The aptly-named, day-flying White-Striped Black Moth (Trichodezia albovittata<\/em>) (white line\/stripe), in the family Geometridae (earth measurers), is easily mistaken for a butterfly. Geometrid caterpillars are often called \u201cinchworms\u201d because of the way they move across the landscape; the WSB caterpillar\u2019s landscape of choice is primarily leaves of plants in the Impatiens\/Touch-me-not family. Adult Geometrids are equipped with tympanal<\/em> hearing organs (ears) on their abdomen but no \u201cvocal\u201d ability. They hear but they do not speak. In Moths and Caterpillars of the North Woods<\/em> Jim Sogaard says that \u201cThis moth still has very sensitive \u2018bat detectors\u2019 (ears) suggesting that it has become day-flying relatively recently. A good candidate for key-jingling. In flight the boldly contrasting pattern creates an elusive flickering effect.\u201d (About \u201ckey-jingling\u201d Sogaard says \u201cyou can trigger bat-evasion behaviors by jingling a ring of keys near flying moths. The key-jingling sound contains ultrasound which can cause dropping, diving or spiraling flight in moths with ears. Bat detectors can make the ultrasonic calls of bats and moths audible.\u201d)<\/p>\n\n\n\n

\"wh-strpd-black14-1rz\"<\/a><\/figure>\n\n\n\n

The Boxwood Leaftier<\/h2>\n\n\n\n

What a spiffy little moth! The Boxwood Leaftier (Galasa nigrinodis<\/em>) is in the Snout moth family Pyralidae, and it is found from the Rockies to the Atlantic. Its species name, nigrinodis<\/em>, means \u201cblack knot,\u201d possibly a reference to the Percheron-like tufts of hair on its front legs. Again, in a landscape without decorative hedges, the BugLady can\u2019t imagine where this quirky little moth is finding the non-native boxwood shrubs that are its sole larval host (although there are suspicions that the related native, Alleghany spurge (Pachysandra procumbens<\/em>), which is planted horticulturally in some parts of the country, may also host the caterpillar) (the BugLady doesn\u2019t have any of that, either). Caterpillars tie the leaves of their host shrub together and then feed on them.<\/p>\n\n\n\n

With a nod to the drawbacks of \u201cpicture-keying,\u201d the BugLady recommends the Peterson Field Guide to the Moths of Northeastern North America<\/em> by Beadle and Leckie and Moths and Caterpillars of the North Woods<\/em> by Sogaard for your moth adventures. Not much natural history info in the Peterson, but great pictures of a whole lot of species, large and small, that may help you to ID a moth so you can find out more about it.<\/p>\n\n\n\n

The BugLady<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

Moths<\/strong>, a sometimes spectacular, sometimes anonymous bunch of insects. 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