Regal Fritillary

When we think of endangered species--if we think of them at all -- we typically think of our Nation’s great conservation success, the Bald Eagle.   Insects are also on the endangered list.   One of the most remarkable is a creature until last summer I had not heard of, much less seen.   I am speaking of the Regal Fritillary (pronounced Frit-a-Larry,unless you don’t mind strange looks then you can pronounce it Fri-till-ery rhymed with artillery) as I did for quite some time. 

My story begins last summer, after receiving an email from the Idalia Society (a wonderful organization based in KC for all you butterfly lovers) Ray Moranz needed help with his dissertation research on the Regal Fritillary butterfly in Missouri, Oklahoma and Kansas prairies.   I contacted Ray, spoke with him about his research and volunteered to help for a day.   He was doing a comparative study of the prairie habitat of the Regal Fritillary -- studying populations over a 2 year period of time on burned, grazed and untouched prairies.   Ray infected me with his enthusiasm and I became intensely curious about how the different habitat types would effect breeding populations of these beautiful butterflies.    My husband and I set up a date to meet Ray and his assistant, Laura Haynes, in Nevada, Missouri in July.  We decided to incorporate this adventure into our family vacation and headed south.   

After a good nights sleep, we met up with Ray and Laura early in the morning.   Ray’s passion for these butterflies was contagious – we could hardly wait to get on the prairie and meet these beauties up close.  Our first stop was Taberville Prairie Conservation Area, where we were greeted by two of Ray’s technicians from the Missouri Department of Conservation.   We drove a short distance out into the prairie where Ray had previously cordoned off areas for his research.   We divided into two teams.   I was on team one with Ray and one of the MDC technicians.   My husband teamed up with the other MDC technician and Laura.   Both teams headed into their designated areas.   Ray was in the lead, scouting for butterflies I was behind him with a clip board and pen, writing down species names as he spotted them, and noting activities such as perching, sipping nectar or flying.   I was completely intrigued by his studiesand he met my endless questions with patient informative answers.  Behind us was our MDC technician, carrying a measuring stick to help him count the number of prairie flowers within two meters of our route.   I had never roamed a prairie and I was completely absorbed in everything around me. 

My first sight of a Regal was one I won’t soon forget.   This is truly an apt name, for such a beautiful butterfly.   From a distance they seem much like a monarch.  After a closer inspection the differences are obvious.   As we walked through the tall grasses and brambles (yes, brambles, the prairies are loaded with blackberries, and I paid dearly for not dressing appropriately) we continued to startle Regal’s out from their hiding places near the ground.  We spotted numerous other butterfly species, but none as impressive as these large orange and black beauties.   After an hour and a half sampling this prairie, we met up with the other group and headed back to our cars.  

Our next exploration would be at Bethel Prairie Conservation Area in Lamar.    We arrived after noon and started the second leg of our adventure.   By now the gorgeous weather we had earlier in the day was giving way to typical Missouri July heat.  Temperatures were fast approaching the mid 90’s and the sun was blazing high in the sky. 

The teams switched; Laura and I were one team and Ray and my husband were the other.   Laura & I ventured into the prairie to search for butterflies.   We had not walked but 50 feet when I grabbed Laura and told her to stop; she was absolutely covered in ticks.   When I say covered, believe me I am not exaggerating.  I spent several minutes picking these pesky little critters off her, only to discover I was in a similar situation.  I too was covered.  At this point we felt like a couple of monkeys on the prairie, picking pests off each other.  This was only the beginning, we walked for what seemed like miles, in the heat, picking ticks, and scrambling through blackberries.   The end of our research area was marked by a barbed-wire fence, with mowed grass on the other side.   I knew exactly how a cow felt when she decided to test the grass on the other side.   We had two options at this point, one was to continue on the prairie fighting blackberries and sumac, not to mention the ticks, or we could climb the fence and be free of this torture.  For me it was a no-brainer.  I climbed that fence in record time – years of farm life and scaling fences had paid off -- and we began our long walk back to the truck.   

We drove back to get our car, and it was at this point that I realized that I fought the blackberries and they won.   My ankles were completely swollen and red, covered in scratches that were bleeding.  That will teach me to listen when I’m told to wear long pants on the prairie.   It was days before the redness and swelling went down and weeks before the scratches healed.  It was a daily reminder of our adventure into the prairie, seeking these elusive Regals. 

These butterflies are quite large with a wingspan of 2.  9 -3.  8 inches.  They have very similar markings of orange and black like the familiar Monarch.  The similarities end there.   Upon closer inspection the hindwings are quite different; dark above and covered with white spots below.  The forewings are marked with short dark lines running crosswise to the wing veins, unlike Monarchs who do not possess these lines.  The females have a dark patch at the wing tip and a row of small white spots along the outer margin, on the upperwing ; the spots are pale yellow, whereas the male’s spots are white on the inner row and orange on the outer. 

The Regal Fritillary is listed as a species of concern in Missouri and in every other state where they occur.   Tall grass prairie, the most important habitat for these butterflies, is vanishing.   Only 2% of our prairies remain in Missouri and most of the prairie states that are home to this butterfly are in similar situations.   Other potential causes for the decline of these butterflies include disease, the use of pesticides and herbicides.   By looking at populations on these different types of managed prairies, over a period of years, it will be in all likelihood possible to help the populations of these butterflies grow, or at the very least stay stable.  It is a fight for survival for the Regal.   Ray’s research will lead to better managed prairie habitat and a wider awareness of the needs of these ‘flying flowers’.  

The needs of the Regal are very specific; the only acceptable host plant for the larva is the violet.  After breeding, the female will fly to the ground and walk among the leaves laying up to 2400 eggs.   Eggs hatch in the fall, and the tiny caterpillars that emerge over-winter under prairie vegetation.   In the spring, these hungry little eaters will begin searching for their host plants and start feeding.  If violets are in ready supply, they will grow rapidly.   If prairies are burned too early in he season, the young larva will perish in the fire.   However, if only a portion of a prairie is burned, plenty of caterpillars survive in the unburned portions.   Ironically, it is the burned portions that have the most flowers in summer (and thus provide the most food for the adult butterflies).   

I want to send out a big THANK YOU to Ray and his team for a wonderful opportunity to participate in his research, even if only for a short time.  I won’t soon forget my adventure on the Missouri Prairies.   Let me encourage each of you to venture out and explore the prairies, and see if you too aren’t immediately drawn to the wonder that is the prairie, and the beautiful flying flowers that call it home. 

But, don’t forget your long pants and the bug spray. 

(Story by Shelly Cox, FOLNC Volunteer.  Photos by Ray Moranz))