Mau
armed us with nets, vials, and plastic bags—the weapons of rookie
insect collectors—and turned us loose in the botanical garden. Divided
into five teams of two, we stalked various insects through the rows of
bromeliads and palms. I was teamed up with Natalie, an aspiring
scientist from Occidental College in Los Angeles. We caught whatever we
found. Grasshoppers and ants and beetles and butterflies (or were they
moths?) and little beady-eyed things with skinny, curly noses and long,
mechanical legs. Basically, if it buzzed, we bagged it.
We
had a butterfly battle. A beautiful blur of blue in the sun caught our
eye and drew us into a clearing. There we saw a butterfly haphazardly
flitting about. An elusive blue Morpho, maybe? I’d never seen one
before, but I’d heard that they were a magnificent blue—and difficult to
catch. We chased it, but its flight pattern was totally disorienting.
It blinked in the air like a bright blue strobe light. Our net slashed
the air, always a half second behind it. But we stayed with it and
Natalie tracked it to where it was resting under a heart-shaped
Anthurium leaf. I dashed at it with my net and sent the fronds
a-bobbing. We inspected the net and saw the beating of fragile blue
wings. Got it! Gingerly, we took it out of the net, folded it into a wax
paper bag to protect its scales, and took it back to the lab to analyze
it.
Back
at the lab we popped our captives in a freezer for five minutes or so
to slow them down. This allowed us to examine them under a microscope.
Mau then handed each of us a dichotomous key and instructed us to
attempt to identify them.
A
dichotomous key is essentially a choose-your-own-adventure book for
scientists. Are your butterfly’s tarsal claws forked? If not, skip to
step 6 to find out if your specimen is a Lycaenidae or a Papilionoidae!
As you wind your way through the key, the story of your insect becomes
clear.
Our
insect had clubbed antenna, so it was butterfly, not a moth. It only
had four walking legs, so it was probably in the family Nymphalidae. So
was the Morpho! Its veins were enlarged at the base of its forewings, so
it was in the subfamily Satyrinae. From there, we pinned it down to a
specific species based on photographs. It was Chloreuptychia arnaea.
A small brown butterfly with a reflective blue splash on its
hindwings—actually not even close to a Morpho, just another Nymphalid. I
grimaced, crestfallen, then laughed off our naive over-enthusiasm for
certain charismatic species. We let it go and moved on to our next
specimen.
Afterwards,
Mau gave us our first assignment of the semester: catch and identify
ten insects. Over the next few days, I went out into the garden, armed
again with my science weapons and collected more specimens. I followed
the various keys to identify Geometridae moths (yawn), Chrysomelidae
beetles (ladybugs and friends), Apidae bees (all the friendly bees,
really), and Nymphalidae butterflies (brush-footed butterflies). I
picked up a lot of technical anatomical knowledge along the way: the
tarsal formulae are the number of segments on the foot of a insect; the
elytra is the hardened set of forewings that a beetle hides its
hindwings under; ocelli are the small eyelets that detect differences in
light intensity; the protonum is the hard protective cover that shields
the thorax.
Each
time I finished identifying an insect, I’d think a little more fondly
of it. I felt I could relate to it better because I had a name for it, a
way to talk about it, and some idea of how it connects to its kin.
Because I could file my butterfly into a drawer of characteristics known
as Satyrinae, I could reach into that drawer and pull out knowledge
that has been accumulated about its habits: it feeds on rotting fruit
and fungi; it will lay a single egg at a time; its eggs are often
parasitized by wasps.
Naming
and identifying transforms the unfamiliar into the recognizable. The
first question we ask a new acquaintance is, “What’s your name?” This is
how we make friends out of strangers. Now the forest is a bit more
friendly and a bit less strange.
But
I’d be lying if I ended the story here. Because I think back to our
false Morpho and the disappointment I felt when I learned what it really
was. Before I identified it, I was excited about it. Afterwards, I
wasn’t. Why the about face? The butterfly was exactly the same
arrangement of carbon before and after I identified it. It didn’t alter
its behavior or its coloration. I just couldn’t file it away into the
drawer of characteristics called Morpho.
I’m
not sure that my names have any bearing on the external world. The only
thing they change is me. My naming had stripped me of my appreciation
for what fundamentally was and replaced that appreciation with an awareness of all it wasn’t.
I had limited my perception, turned an individual into an idea, a being
into a specimen. The butterfly itself doesn’t care the slightest
whether I call it Morpho or Satyrid. When it sails over fern fronds, its
scales still shine the same.Tom Jackson
University of Virginia
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