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Thursday, March 28, 2019

Day Fliers


Eight-spotted Forester nectaring on Mexican Plum
As part of the larger groups of moths known as the Noctuidae and Thyrididae, Forester and Window-Winged moths are day fliers that commonly have white-spotted black forewings and either similar or bright orange hindwings, and are often found in open woodlands and flowery meadows.  This time of year, you can frequently spot them nectaring on early blooming trees and shrubs, including Mexican Plum, Escarpment Black Cherry, Texas Redbud, and Mexican Buckeye.

A newly emerged adult Eight-spotted Forester
In our area, the Eight-spotted Forester (Alypia octomaculata), Grapevine Epimenis (Psychomorpha epimenis), and Mournful Thyris (Pseudothyris sepulchralis) are the more typical species to be found.  The Eight-spotted Forester has velvety black wings with two large cream-colored spots on each forewing and two large white spots on each hindwing, alluding to its ‘eight-spotted’ common name.  It has a wingspan of about one and a half inches, and its legs are adorned with showy orange tufts where they attach to its body.  Flying from March to June with a second brood in August, the larva of this moth have broader orange bands with black dots, alternating with fine black and white stripes, and an orange head and hind end.  They feed mainly on Virginia Creeper and other various grapevines.

Eight-spotted Forester caterpillar
Grapevine Epimenis nectaring on Mexican Plum
Grapevine Epimenis is another Forester moth that also has velvety black wings, but each forewing has one bold white patch near the outer edge, and each hindwing has a broad orange-red band.  With a wingspan of about one inch, it flies from February to April, and sometimes has a second brood in October.  Its larva feed on various grapevines, most notably Mustang Grape in Central Texas, and are mainly black and white striped with an orange head and hind end.

Mournful Thyris nectaring on Mexican Buckeye
Mournful Thyris is a Window-Winged moth, a chunky-bodied small moth with just under a one inch wingspan, that habitually spreads its wings when alighting on flowers or on wet sandy soils along forest trails.  Its wings are black patterned with multiple various sized white spots, and translucent median patches that form ‘windows.’  It flies from February to April, and its larva also feed on grapevines, most commonly Mustang Grape in our area.

Contrary to popular belief, a surprising number of moth species are day fliers, and many are as beautifully patterned as, and often mistaken for, butterflies.  If you’d like to attract these splendid little moths to your yard, simply plant the native trees, shrubs, and vines listed above, and they will grace you with their presence each spring!

Monday, March 11, 2019

Plant Natives!

Non-native, invasive, Nandina - Please avoid planting this and consider removing it from
your landscape.  It is a pest in our parks and preserves.
Spring is the ideal time to think about planting, and how you manage your garden or landscape can have an effect on the overall health of the soil, air, water and habitat for native wildlife as well as our human community. Help conserve and improve the quality of these resources by using sustainable gardening practices such as mulching and composting, reducing or eliminating lawn areas, xeriscaping (planting native, drought-tolerant plants), installing rain barrels, and removing non-native invasive plants and restoring native ones.

The U.S. government defines an invasive plant species as one “that is not native to the ecosystem under consideration and whose introduction is likely to cause economic or environmental harm or harm to human health.” These species grow outside desired boundaries, out-competing native species, and spread by seeds, berries, spores, runners, rhizomes, and stems. Some can be easily transported long distances, and every year millions of our tax dollars and thousands of volunteer hours are spent trying to eradicate them.

Many of these plants have already invaded our preserves and greenbelts in Austin, originating in our landscapes, escaping cultivation and spreading into the wild. Invasive species may grow faster, taller, or wider and shade out native species. Many stay green later into the season or leaf out earlier, giving them an advantage over natives. They can change the vertical and horizontal structure of ecosystems, alter hydrology, and disrupt nutrient cycles, all of which can have devastating effects on native plants and animals.

Although invasive exotics may offer birds fruit, squirrels nuts, and hummingbirds and butterflies nectar, they do not provide the entire range of seasonal habitat benefits that an appropriate locally native species will provide. If we want not only to satisfy our desires to attract wildlife, but also to restore the critical, often unseen, small pieces in our ecosystems, we need to bring back our locally native plants. These plants are not only attractive to humans, they also meet the food and cover needs of all wildlife species: bees, wasps, butterflies, grasshoppers, bugs, beetles, spiders, and thousands of others that sustain and support food webs which songbirds, salamanders, bats, toads, and box turtles more visibly demonstrate.

Escarpment Black Cherry is a beautiful native tree that makes a great replacement for the

highly invasive privets or ligustrums.
Aside from attracting a diversity of wildlife, the use of native plants minimizes the impact our landscapes have on the natural environment around us. They reduce water consumption, eliminate the need for chemical fertilizers and pesticides, and limit the competition from invasive exotics. This results in a much healthier habitat—water, soil, and air—for humans and animals alike, and is less costly, too. Invite wildlife to put on a show in your backyard by replacing the invasives in your landscape, and encourage your neighbors to do the same.


Non-Native/Invasive Plant(s)
Some Native & Adapted Alternative(s)
Bamboo 
Wax Myrtle (Morella cerifera)
Yaupon Holly (Ilex vomitoria)
Bamboo Muhly (Muhlenbergia dumosa)
Chinaberry
Chinquapin Oak (Quercus muehlenbergii)
Texas Red Oak (Quercus buckleyi)
Chinese Tallow Tree 
Bigtooth Maple (Acer grandidentatum)
Lacey Oak (Quercus laceyi)
Elephant Ear
Arrowhead (Sagittaria latifolia )
Crinum Lily (Crinum americanum)
Pigeonberry (Rivina humilis)
Frogfuit (Phyla nodiflora)
Horseherb (Calyptocarpus vialis)
Giant Cane
Roughleaf Dogwood (Cornus drummondii)
Yaupon Holly (Ilex vomitoria)
Japanese Honeysuckle
Coral Honeysuckle (Lonicera sempervirens)
Passion Vine (Passiflora foetida or incarnate or lutea or tenuiloba)
Rock Rose (Pavonia lasiopetala)
Holly Fern
River Fern (Thelypteris kunthii)
Kudzu, English Ivy, Vinca
Virginia Creeper (Parthenocissus quinquefolia)
Trumpet Vine (Campsis radicans)
Coral Vine (Antigonon leptopus)
Ligustrum (all species) or Common Privet
Evergreen Sumac (Rhus virens)
Barbados Cherry (Malpighia glabra)
Yaupon Holly (Ilex vomitoria)
Possumhaw Holly (Ilex decidua)
Texas Sage (Leucophyllum frutescens)
Cherry Laurel (Prunus caroliniana)
Black Cherry (Prunus serotina)
Mimosa
Desert Willow (Chilopsis linearis)
Texas Redbud (Cercis canadensis var. texensis  )
Elbowbush (Forestiera pubescens )
Nandina or Heavenly Bamboo
Texas Lantana (Lantana urticoides)
Bush Germander (Teucrium fruticans)
Texas Sage (Leucophyllum frutescens)
Paper or White Mulberry
Red Mulberry (Morus rubra)
Texas Persimmon (Diospyros texana)
Possumhaw Holly (Ilex decidua)
Cherry Laurel (Prunus caroliniana)
Pyracantha 
Yaupon Holly (Ilex vomitoria)
Possumhaw Holly (Ilex decidua)
Evergreen Sumac (Rhus virens)
Red-tipped or Chinese Photinia
Evergreen Sumac (Rhus virens)
Carolina Buckthorn (Frangula caroliniana)
Yaupon Holly (Ilex vomitoria)
Russian Olive
Texas Persimmon (Diospyros texana)
St. Augustine Grass
Buffalo Grass (Bouteloua dactyloides)
Tamarisk or Salt Cedar
Bald Cypress (Taxodium distichum)
Arizona Cypress (Cupressus arizonica)
Tree of Heaven
Chinquapin Oak (Quercus muehlenbergii)
Lacey Oak (Quercus laceyi)
Vitex or Chastetree
Texas Pistachio (Pistacia mexicana)
Mexican Buckeye (Ungnadia speciosa)
Wisteria
Passion Vine (Passiflora foetida or incarnata or lutea or tenuiloba)
Trumpet Vine (Campsis radicans)