Fiery Skipper Butterfly (Hylephila phyleus)

Fiery Skipper (Hylephila phyleus - male) on Guadalupe Island rock daisy

The warm temperatures of spring through fall bring many butterflies to Southern California gardens.  From the large and dramatic Western Tiger Swallowtail to the miniscule Pygmy Blue, their bright colors and interesting behavior add much to our warm season gardens.  Butterfly-watching is enjoyed by all ages – and can be done inexpensively and comfortably in even a small garden.  It’s no wonder that interest in butterflies is growing.

Common to California gardens are the small orange/gold, brown and black butterflies known collectively as the Skippers.  The Skippers, in the family Hesperiidae, are best viewed as ‘sisters’ to the rest of the butterflies.  Their characteristics place them somewhere between the butterflies and the moths [1]. 

Fiery Skipper (Hylephila phyleus - male) feeding on Pluchea odorata

 

Several Skippers that frequent local gardens belong to the sub-family Hesperiinae - the folded-wing skippers.   We discussed this group – and the Umber Skipper - last month: http://mother-natures-backyard.blogspot.com/2016/07/umber-skipper-butterfly-poanes-melane.html.   Another locally common member is the Fiery Skipper, Hylephila phyleus, which is flying right now in Mother Nature’s Backyard.  The scientific name is pronounced ‘hi-lee-FY-luh   FY-lee-us’

Fiery Skippers are native to Southern California and beyond.  Their range is limited by cold winters, so the year-round range is limited to warmer areas like Southern United States, Southern California, the West Indies and Central America south to Argentina and Chile.  But they commonly stray further north (and to higher elevations), creating yearly colonies even as far north as northern California, the lower Mid-west and southern New England. They are very common in western Los Angeles County gardens, fields, parks and other grassy places.

The genus Hylephila, which is largely neotropical in range, contains 21 species.  All look somewhat similar to the Fiery Skipper: blotched yellow-orange and black on their upper sides and paler yellow with dark spots on their undersides.  In all, the females are duller colored, with more dark areas than the males.

Fiery Skipper (Hylephila phyleus - male) on Red buckwheat
 (Eriogonum grande var. rubescens). Note very short antennae

Fiery Skippers are smaller butterflies, with a wingspan ranging from about 1.25 to 1.5 inches (approximately 3 to 4 cm.).   They have stout, hairy bodies with a tapered abdomen (tail segment) and very short, distinctive antennae (see above). Their large, dark eyes contrast strongly in their yellow-white faces.  They perch with their wings either closed or, more commonly, with both the hind and forewings visible.   Fortunately, they can be easily photographed.



Fiery Skipper (Hylephila phyleus - male) - typical wing positions when perched

 

Male and female Fiery Skippers have slightly different coloration.  The males are the Fiery ones.  One can’t help but photograph the males - they are just so attractive!  Amongst all the photographs of Fiery’s I’ve taken, the vast majority are of males (sorry, ladies!).   We’ll try to do better in the future.

Not surprisingly, there are differences in coloration across the species’ wide range [2].  If you live outside Western Los Angeles County, your Fiery’s may look different from ours.  But Hylephila phyleus males are always more brightly colored. The overall impression of the male is of a small, bright yellow-orange butterfly with black streaks; of the female, a dark brown Skipper with some yellow-orange blotches.

 

Fiery Skipper (Hylephila phyleus) - comparison of males & females

In local specimens, the underside of both males and females is a pale buff to light yellow-orange, with the males being more orange and females more buff.  The males have a small number of small, irregular brown spots.   The underside of the females is paler and has a series of light brown checks (see below).   The female underside could be mistaken for the less common Sandhill Skipper (Polites sabuleti), although the Sandhill has more distinctive and darker checks (at least in our gardens).

Fiery Skipper (Hylephila phyleus - female)
compared to Sandhill Skipper (Polites sabuleti)

 

The upperside of males has a ‘fiery’ appearance; bright to light yellow-orange background with wide black wing margins outlining the ‘flames’ (see above).  The males also have a distinctive, dark brown band (stigmata), which distinguishes them from other local bright orange Skippers (see below).   A great way to see the details – and appreciate the beauty – of butterflies is to photograph them.  For suggestions on photographing insects see: http://mother-natures-backyard.blogspot.com/2015/07/life-friendly-gardening-photographing.html

Fiery Skipper (Hylephila phyleus - male) -
distinctive band-like stigmata

 

The upperside of females is darker – brown to almost black – with an irregular band of orange blotches.  The orange is paler than that of the males.  From the upperside, females might be mistaken for the rarer (in gardens) Field Skipper/ Satchem (Atalopedes campestris).  But in our gardens, where the Fiery Skippers far out-number the Satchems, a dark brown Skipper with orange blotches is usually a Fiery female.

Fiery Skipper (Hylephila phyleus - male) - nectaring on
 Yarrow (Achillea millefolia)

 

The bodies of both sexes are covered in long, golden hairs.  The lower ‘face’ and underside of the body are light gray or white.  The legs are yellow or buff.   The proboscis (tongue) used for feeding is dark (see above).

 

Old, tattered Fiery Skipper (Hylephila phyleus - male)

 

In colder climates, Fiery Skippers die off in the winter.  At lower elevations in S. California, they can be seen most of the year - though in reduced numbers during the colder months.  Peak months in our gardens are late June through September.  Several broods hatch each year in most parts of the species’ range.   So you will see fresh young butterflies and older, tattered ones, at the same time.

Fiery Skipper (Hylephila phyleus - male) - perched on sedge

 

In summer, males perch on grass or flowers, waiting for receptive females.  Their bright colors, and the scent of pheromones (released from the stigmata) attract the females.   Adults are often found in groups of 10 or more at a given site.

Adult Fiery Skippers can also be seen feeding at many types of flowers.  They seem to particularly favor the many small flowers of the Mint and Sunflower Families and the native Buckwheats.  The best Skipper plants in our gardens are the Monardellas, Yarrow, Grindelias, Senecios, Pluchea, Goldenrods and all of the Buckwheats (Eriogonum species).  They also utilize many non-native garden flowers.   You will even see them in vegetable gardens!

Fiery Skipper (Hylephila phyleus - male) - feeding on
 Seacliff (Dune) buckwheat (Eriogonum parvifolium)

 

The Hylephila phyleus larvae, like those of other ‘Grass Skippers’, eat grass.  They utilize a number of native and non-native grasses; where there is any type of lawn or weedy grass, there will likely be Fiery Skippers.  Eggs are usually laid on the underside of grass leaves, but may also be laid on other plants.  The caterpillars tie the edges of a grass leaf together, creating a protective shelter.   You may see these ‘tents’ in your grass, but they are easy to overlook.

The caterpillars themselves are tan to green, less than about an inch, striped and with a large, dark head.  They blend in pretty well with the grasses on which they feed.  You’ll have to look hard to find them.

For more good pictures of Fiery Skipper, including their larvae, see:

• http://nathistoc.bio.uci.edu/lepidopt/hesper/fiery.htm
• http://www.butterfliesofamerica.com/hylephila_p_phyleus.htm
• http://www.dallasbutterflies.com/Butterflies/html/phyleus.html
• http://socalbutterflies.com/hesperiidae_html/fiery_skipper.htm
• http://bugguide.net/node/view/406
• http://butterfly.ucdavis.edu/butterfly/Hylephila/phyleus
• http://homeorchard.ucanr.edu/?blogtag=Hylephila%20phyleus&blogasset=45538
• http://www.naba.org/chapters/nabambc/construct-species-page.asp?sp=fiery-skipper
• http://ataxus.com/ak5t/hawaii/hi_phyl.htm

 



Fiery Skipper (Hylephila phyleus - male) - feeding on
 Seacliff (Dune) buckwheat (Eriogonum parvifolium)

 

We hope you’ll look for Fiery Skippers in your garden or other outdoor places.  They are very active this time of year.  Though small, they are beautiful and fun to watch.  Happy viewing!

For more on butterfly gardening see: http://mother-natures-backyard.blogspot.com/2012/06/butterfly-gardens.html

For more on local garden insects see: http://mother-natures-backyard.blogspot.com/2016/07/insect-postings-mother-natures-backyard.html

 

_____________________

 

1.   Art Shapiro’s Butterfly Site - http://butterfly.ucdavis.edu/butterfly/common/Skippers

 

2.   Butterflies and Moths of North America - http://www.butterfliesandmoths.org/species/Hylephila-phyleus

 

 

We encourage your comments below.   If you have questions about Fiery Skipper butterflies or other gardening topics you can e-mail us at :  mothernaturesbackyard10@gmail.com

Umber Skipper Butterfly – Poanes melane

Umber Skipper butterfly (Poanes melane) - perched on Purple sage

July is butterfly month in Southern California, and this is a good year.  We are fortunate in our bounty; over 20 butterfly species routinely visit local home gardens.  For more on attracting these ‘jewels of summer’ see: http://mother-natures-backyard.blogspot.com/2012/06/butterfly-gardens.html

Common to California gardens are the small orange/gold, brown and black butterflies known collectively as the Skippers.  The Skippers, in the family Hesperiidae, are best viewed as ‘sisters’ to the rest of the butterflies [1].  They generally have short, stocky, hairy bodies, a large head with hooked antennae, relatively small pointed wings and a rapid ‘skipping’ flight pattern.  The green caterpillars, which have a large head, are also distinctive.   There are at least 3500 Skipper species world-wide (about 250 native to North America).   We discussed one group – the Duskywing Butterflies (genus Erynnis) – previously (http://mother-natures-backyard.blogspot.com/2015/05/duskywing-butterflies-genus-erynnis.html).

 

The sub-family Hesperiinae - the folded-wing skippers – is well-represented in California. This is the largest Skipper sub-family, with over 2000 described species world-wide.   Unlike the Duskywings, this group perches with its wings either folded or with the hind wings flat and the forewings partially closed, giving the appearance of double wings.  Hesperiinae larvae (caterpillars) feed on grasses and sedges, hence the common name ‘Grass Skippers’.   A locally common representative is the Umber Skipper, Poanes melane, which frequents many gardens containing native or non-native grasses and sedges (even lawn and weedy grasses).

Umber Skipper butterfly (Poanes melane) - on dried Grindelia

 

Umber skippers are relatively small – about 1 ¼ inches (3.2 to 3.5 cm) across.  But they do perch regularly, allowing you to view them even without binoculars. If you’re patient, you can take good photographs of Umber Skippers. Once you recognize them, you’ll realize just how common they are in our area’s gardens.

Umber skippers range from western California (west of the Sierras) into Baja California, and the highlands of Mexico and Central America.  The California type (ssp. melane) is limited to western CA (from Northern CA [Monterey County] south to the Mexican border) and Baja California, Mexico. The range of Poanes melane appears to be expanding northward in California, perhaps due to the availability of grass lawns and possibly due to climate change. [2, 3]     Umber Skippers were apparently unknown in San Diego County until the 1930’s [4].

Poanes melane melane was proposed as a sub-species by none other than William Henry (W. H.) Edwards, in 1869. Edwards was a famous butterfly expert of his time.  He wrote the three-volume Butterflies of North America (1868-1897), called "one of the most important entomological publications of the 19th century." [5]    Edwards was particularly interested in morphologic (physical) differences within a species and the role these play in the development of new species.  Poanes melane certainly demonstrates morphologic variability within its range.

We were surprised by the limited research on the taxonomy and natural history of Poanes melane.  For such an interesting butterfly, relatively little is known about its classification and life ways.   This species presents a ripe field of inquiry for a graduate student interested in Southwestern butterflies.

Umber Skipper butterfly (Poanes melane) - perching male

 

Umber skippers are best known (and named for) their most obvious feature – their overall umber color.  Among local folded-wing skippers, this is the darkest appearing; the rest are either more orange or paler.   The males are said to be smaller and darker than the females, but we can’t claim to tell the difference reliably. 

We do see quite a bit of variability in our own gardens (see below).  This may in part be due to sexual dimorphism; we also suspect that individuals lose some of their bright coloring as they age.  The brightest Umbers are most common early in the season.  The darker ones are more frequent later; these have often lost much of their juvenile ‘hairiness’ as well (see below).   They blend in quite well with drying foliage.

Umber Skipper butterfly (Poanes melane) - dorsal side

Umber Skipper butterfly (Poanes melane) - doral side

 

When viewed more closely, the upper (dorsal) side is primarily umber brown, although sometimes the color appears almost black-brown.  The forewing, which is often easiest to view, has a line of three small lozenge-shaped patches near the edge. These are usually a bright yellow-orange, but may be almost white. They are quite distinctive and easy to spot.  There are also a series of larger, yellow-orange splotches nearer the body.  These form an irregular line or band.  The hind wing has a light, yellow-brown band, which is distinctive in this species.  The narrow wing fringes are a pale tan (see above).

Umber Skipper butterfly (Poanes melane) - ventral side

Umber Skipper butterfly (Poanes melane) - ventral side

The lower (ventral) side is often easy to view when Umber skippers are feeding. The ventral side wings are lighter, with an umber background and paler orange (to white) blotches.  The blotches form a distinctive v-shaped band, which is often described as unique to this species. 

Umber Skipper butterfly (Poanes melane) - close up, ventral

 

The antennae are approximately 1/3 the body length, spreading out and slightly forward; they have the slight hook at the end that is typical for Skippers.  The entire body is quite hairy.  The hairs atop the head are umber; the ‘face’ and area around the eyes is white (see above).  The hairs on the underside of the body are often also gray-white.

For more good pictures of Poanes melane in all stages see:

• http://nathistoc.bio.uci.edu/lepidopt/hesper/umber.htm  
• http://socalbutterflies.com/hesperiidae_html/umber.htm  
• http://calphotos.berkeley.edu/cgi/img_query?stat=BROWSE_IMG&where-lifeform=Invertebrate-Insect&where-taxon=Poanes+melane&title_tag=Poanes+melane  
• http://bugguide.net/node/view/9790/bgimage  
• http://butterfliesofamerica.com/poanes_m_melane.htm  

 

Umber Skippers can be seen anytime from spring (usually March) through fall (October), but they are most common locally in the hot, dry days from June through September.  They have several broods a year [4], one in spring and another in late summer/fall.   



Umber Skipper butterfly (Poanes melane) in garden 

Umber Skipper butterfly (Poanes melane) - nectaring on Yarrow

From our experience, Umbers are common butterflies in the Los Angeles Basin.  In the wild, they live in shaded canyons in the foothills and Oak woodlands. They can also be found in grassy areas in Preserves, parks and gardens, often near water.  We were surprised that Umbers are uncommon in Orange County suburbs [4].  This has not been our experience; we see them regularly in western Los Angeles County, particularly in gardens with native plants.

Umber Skipper butterfly (Poanes melane) - nectaring on Purple sage

Umber Skipper butterfly (Poanes melane) -
trying to get to nectar in Penstemon flower

Adult Umber skippers feed on floral nectar, primarily from plants in the Sunflower (Asteraceae) and Mint (Lamiaceae) families in our gardens.  We commonly see them on Yarrow, Asters, Gumplants, Goldenrods, native Sages (Salvias), mints and Monardellas.  It’s not unusual to see several Umbers on a single flowering plant – or Umbers nectaring with Fiery (Hylephila phyleus) or other Skippers.  Umbers are quite tenacious in their quest for nectar (see above); we’ve seen them hanging upside-down – even entering tubular flowers like the Penstemons.

Umber Skipper butterfly (Poanes melane) - courtship behavior

When not nectaring, males can be seen perched near grasses, waiting for receptive females.  We have observed female Umbers rapidly circling a perched male, a behavior that’s easier to observe than to photograph. Males will also dart out to inspect potential mates. We’ve tried photographing the Umber’s mating ritual many times – with less than optimal results (above).  The perched individuals appear to be male; the circling individuals appear to be larger and brighter females.   We’ll continue to observe and update with new insights into Umber behavior.

We’ve also seen Umbers chasing off other individuals, mostly Umber and other Skippers, in what we assume to be territorial behavior.   Several to a handful of individuals will also sometimes chase upward in a spiraling pattern. We’re not sure whether this represents courtship or other activity.  Perhaps someone with more knowledge of Skipper behavior can enlighten us?

Umber Skipper butterfly (Poanes melane) - in flight

 

Larval food sources are a range of native and non-native grasses and sedges.  Raymond Barbehenn [6] suggests that the only limitation may be the toughness of some grass species.  Caterpillars did not grow on the tougher grass species, such as Deer grass (Muhlenbergia rigens), which they may not be able to digest.  Umber larvae have been observed eating a wide range of common lawn and weedy grasses including tufted hairgrass (Deschampsia caespitosa), Bermuda grass (Cynodon dactylon), California brome (Bromus carinatus),   and sedges.

Females likely lay individual eggs on the undersides of grass blades.  The caterpillars eat the grass/sedge leaves.  They hide from predators by constructing shelters made of rolled leaves.  The caterpillars are pale green with a dark gray or brown head.  For photos of eggs and caterpillars see:

• http://bugguide.net/node/view/981172

 

We hope we’ve inspired you to search for – and observe – this interesting Skipper species.  There’s much still to learn about this little butterfly.  Perhaps you’ll discover something new – right in your own backyard!

 

Umber Skipper butterfly (Poanes melane) -
 nectaring on Woodmint

 

____________________

 

1.   Art Shapiro’s Butterfly Site - http://butterfly.ucdavis.edu/butterfly/common/Skippers

 

2.   www.montereybutterflies.net/Monterey_County_Butterflies/umber_skipper.html

 

3.   https://www.sbnature.org/collections/invert/entom/sbbutterflies/hespoamel.htm

 

4. http://nathistoc.bio.uci.edu/lepidopt/hesper/umber.htm
5. Calhoun, John V. (2013). "The Extraordinary Story of an Artistic and Scientific Masterpiece: The Butterflies of North America by William Henry Edwards, 1868-1897" (PDF). Journal of the Lepidopterists’ Society 67 (2): 67–110.

6.   Host plants of Poanes melane - http://www.biodiversitylibrary.org/page/41139192#page/404/mode/1up

 

 

For more S. California insects see: http://mother-natures-backyard.blogspot.com/2016/07/insect-postings-mother-natures-backyard.html

 

 

We encourage your comments below.   If you have questions about Skipper butterflies or other gardening topics you can e-mail us at :  mothernaturesbackyard10@gmail.com