To Know A Fly » Biodiversity in Focus Blog

Two new flies to die for. Or not.

Biology, Diptera, Natural History, Taxonomy, To Know A Fly 1 Response »

Oct 142014

Cyanide: poison of choice for jilted lovers, mystery writers, and entomologists alike. But we’re not the only ones to employ this potent potable in our chemical arsenal; polydesmid millipedes have been defending themselves with cyanogenic compounds for millions of years.

Of course, when one organism figures out a new way to protect itself using something that kills lesser creatures, it’s usually not long until somebody else evolves the ability to capitalize on that protection, even when it’s something as deadly as cyanide. Enter 2 new species recently described by John Hash of UC Riverside, Megaselia mithridatesi and Megaselia toxicobibitor, the Rasputins of the scuttle fly world.

Megaselia is an immense genus of Phoridae with a wide diversity of natural histories, so it’s perhaps no surprise that something like cyanide-siphoning could show up here, but that doesn’t reduce the magnitude of such a finding. But how does one go about associating tiny flies unknown to science with murderous millipede defenses?

John works primarily on another genus of scuttle fly that’s also associated with millipedes, Myriophora. Rather than stealing cyanide, these flies prefer to parasitize millipedes protected by another noxious chemical family, benzoquinones. To find these flies, he stresses the millipedes a little by shaking them in a paper towel-lined plastic tube hard enough to piss them off, but not enough to cause physical damage, leading them to exude their defensive chemicals onto the paper towel. John then laid out these poisoned paper towels, and sometimes tied up the annoyed millipedes like the sacrificial goat in Jurassic Park using dental floss, and waited for the flies to come in to the bait. While John was expecting to find new Myriophora species and associations, he states in his paper that discovering a Megaselia/millipede association was a golden example of serendipity in science.

With specimens and natural history notes in hand, John returned to the lab and gave these 2 new species especially fitting names; mithridatesi is an homage to King Mithridates IV of Pontus, who famously immunized himself to a variety of poisons by consuming them in small, sub-lethal quantities, and toxicobibitor, which literally translates to “poison drinker” from Latin.

If you want to hear more about John’s work, and see millipedes on dental floss leashes, check out this video from the Natural History Museum of Los Angeles County, which was filmed while John was down helping out with the Zurqui All Diptera Biodiversity Inventory in Costa Rica. It was while he was here, surrounded by dozens of other dipterists, that he discovered the poisonous habits detailed in this paper. That certainly makes for a killer field trip if you ask me, even without the cyanide.

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Hash J.M. (2014). SPECIES OF MEGASELIA RONDANI (DIPTERA: PHORIDAE)
ATTRACTED TO DEFENSIVE COMPOUNDS OF CYANOGENIC
MILLIPEDES (DIPLOPODA: POLYDESMIDA), Proceedings of the Entomological Society of Washington, 116 (3) 273-282. DOI: DOI: 10.4289/0013-8797.116.3.273

If you’re curious, I asked Millipede Man Derek Hennen about the biology of cyanide-laced millipedes, and he provided a few references and info.

Taxonomic Activity on Taxonomist Appreciation Day

Biology, Cool Science, Taxonomy, To Know A Fly No Responses »

Mar 202014

Taxonomist Appreciation Day has just come to a close where I am, and it was a lot of fun to see so many people express their thanks for the work that taxonomists do. I highly recommend browsing through the hashtag #LoveYourTaxonomist on Twitter, and seeing what people had to say.

I thought it might be interesting to take a look at what taxonomists were up to on this holiest of days. Personally, I reviewed a really great manuscript about an exciting new species of fly that I can’t wait to talk about more when it’s published, but here’s a quick run down of the new animal species* that were officially unveiled to the world on March 19, 2014.

We’ll start small with a new species of yeast, Scheffersomyces henanensis, described from China today.

Ren Y, Chen L, Niu Q, Hui F (2014) Description of Scheffersomyces henanensis sp. nov., a New D-Xylose-Fermenting Yeast Species Isolated from Rotten Wood. PLoS ONE 9(3): e92315. doi: 10.1371/journal.pone.0092315

This charming creature is Pentacletopsyllus montagni, a benthic copepod that was found deep in the Gulf of Mexico.

Bang HW, Baguley JG, Moon H (2014) A new genus of Cletopsyllidae (Copepoda, Harpacticoida) from Gulf
of Mexico. ZooKeys 391: 37–53. doi: 10.3897/zookeys.391.6903

Allow me to introduce you to Anacroneuria meloi, a Brazilian stonefly named for the person who collected it (Dr. Adriano Sanches Melo). This was one of two new species described in this paper.

Bispo, Costa & Novaes. 2014. Two new species and a new record of Anacroneuria (Plecoptera: Perlidae) from Central Brazil. Zootaxa 3779(5): 591-596. doi: 10.11646/zootaxa.3779.5.9

This odd looking creature, Hydrometra cherukolensis, is actually a true bug! The eyes are the bulges in the left third, and like all hemipterans, they have sucking mouthparts tucked under the head (not visible in this photo). The authors of this study described another species of these strange looking bugs as well.

Jehamalar & Chandra. 2014. On the genus Hydrometra Latreille (Hemiptera: Heteroptera: Hydrometridae) from India with description of two new species. Zootaxa 3977(5): 501-517. doi: 10.11646/zootaxa.3779.5.1

This little leafhopper, Nirvanguina pectena, is only 1/2 centimetre long!

Lu, Zhang & Webb. 2014. Nirvanguina Zhang & Webb (Hemiptera: Cicadellidae: Deltocephalinae), a new record for China, with description of a new species. Zootaxa 3977(5): 597-600. doi: 10.11646/zootaxa.3779.5.10

Not only was Luchoelmis kapenkemkensis described, but so was it’s (probable) larva, an unusual occurrence for insects.

Archangelsky & Brand. 2014. A new species of Luchoelmis Spangler & Staines (Coleoptera: Elmidae) from Argentina and its probable larva. Zootaxa 3977(5): 563-572. doi: 10.11646/zootaxa.3779.5.6

While not a new species, Susuacanga blancaneaui was transferred into the genus Susuacanga from the genus Eburia today. Taxonomists don’t just find new species, they also reorganize genera and species as they gain a better understanding of variations within and relationships between taxa.

Botero R, JP. 2014. Review of the genus Susuacanga (Coleoptera, Cerambycidae, Cerambycinae). Zootaxa 3977(5): 518-528. doi: 10.11646/zootaxa.3779.5.2

The authors of this study not only described a new species of wasp, Ropalidia parartifex, but they also produced a wonderfully illustrated identification key to help others recognize these wasps, as well as recording 6 species previously unknown to occur in China.

Tan J-L, van Achterberg K, Chen X-X (2014) Pictorial key to species of the genus Ropalidia Guérin-Méneville,
1831 (Hymenoptera, Vespidae) from China, with description of one new species. ZooKeys 391: 1–35. doi: 10.3897/
zookeys.391.6606

Not only do taxonomists have to be able to recognize new species, they often also need to be able to illustrate how they’re different from one another. Here, the authors drew the final abdominal segments of a male Platypalpus abagoensis to demonstrate how it differs compared to the other 5 new species they were describing; the true intersection of art and science!

Kustov, S., Shamshev, I. & Grootaert, P. 2014. Six new species of the Platypalpus pallidiventris-cursitans group (Diptera: Hybotidae) from the Caucasus. Zootaxa 3977(5): 529-539. doi: 10.11646/zootaxa.3779.5.3

Perhaps the most striking new species described today, Callicera scintilla‘s species epithet literally means glimmering or shining in Latin. Another species was also described in this study, but alas, it isn’t a shiny copper.

Smit, J. 2014. Two new species of the genus Callicera Panzer (Diptera: Syrphidae) from the Palaearctic Region. Zootaxa 3977(5): 585-590. doi: 10.11646/zootaxa.3779.5.8

Of course, not all insects described today are still around to learn their names. This fossil walking stick, Cretophasmomima melanogramma, has been waiting to be discovered for roughly 126 million years!

Wang M, Be´thoux O, Bradler S, Jacques FMB, Cui Y, et al. (2014) Under Cover at Pre-Angiosperm Times: A Cloaked Phasmatodean Insect from the Early Cretaceous Jehol Biota. PLoS ONE 9(3): e91290. doi:10.1371/journal.pone.0091290

Continuing with fossils, Rukwanyoka holmani represents not only a new species of snake, but also a new genus, and is only known from a handful of vertebra.

McCartney JA, Stevens NJ, O’Connor PM (2014) The Earliest Colubroid-Dominated Snake Fauna from Africa: Perspectives from the Late Oligocene Nsungwe Formation of Southwestern Tanzania. PLoS ONE 9(3): e90415. doi:10.1371/journal.pone.0090415

What would a story about new species be without a dinosaur? Making headlines as the “Chicken from Hell“, Anzu wyliei was an omnivorous bird-like dinosaur believed to have had feathered arms, which inspired the generic name: Anzu, a Mesopotamian feathered demon. The species epithet, wyliei, however, is in honour of Wylie J. Tuttle, the grandson of Carnegie Museum patrons! There’s no data provided whether young Wylie has the temperament or feathers of a Chicken from Hell, however.

Lamanna MC, Sues H-D, Schachner ER, Lyson TR (2014) A New Large-Bodied Oviraptorosaurian Theropod Dinosaur from the Latest Cretaceous of Western North America. PLoS ONE 9(3): e92022. doi:10.1371/journal.pone.0092022

Finally, meet Phyllodistomum hoggettae, one of two parasitic trematode worms described today. This species is also named in someone’s honour, specifically Dr. Anne Hoggett, co-director of the Lizard Island Research Station, a research station within the Great Barrier Reef in Australia where the researchers conducted their work. Whie it may not be a dinosaur, it’s still an honour to have a species named after you, even if that species is a parasitic worm that lives in the urinary bladder of a grouper…

Ho, H.W., Bray, R.A., Cutmore, S.C., Ward, S. & Cribb, T.H. 2014. Two new species of Phyllodistomum Braun, 1899 (Trematoda: Gorgoderidae Looss, 1899) from Great Barrier Reef fishes. Zootaxa 3779(5): 551-562. doi: 10.11646/zootaxa.3779.5.5

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If you’re keeping track at home, that’s a total of 22 new animal species described in one day, which is actually below the daily average (~44 new species/day)! This isn’t including all the other things taxonomists work on, like identification keys, geographic records, phylogenetics, biogeography and the various other taxonomic housekeeping that needs to be constantly undertaken to ensure the classification of Earth’s biodiversity remains useful and up to date!

So the next time you look at an organism and are able to call it by name, take a moment to think about the taxonomist who worked out what that species is, gave it a name, and provided a means for you to correctly identify it, and perhaps check to see what new creatures are being identified each and every day!

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*- That I could find. I imagine there are more that were published in smaller circulation or specialized journals that I’m not aware of as well.

To Know a Fly – Soldier of Emerald & Gold

Cool Science, Entomology, Publication, Taxonomy, To Know A Fly 6 Responses »

Nov 222013

In the jungles of southern Mexico there are treasures that glitter and sparkle more than even the most luxurious displays at Tiffany’s, so rare we’ve only ever caught a glimpse of them once. These jewels are made not of stone, crystal or precious metal, but rather segments, cuticle and a punctate mesonotum. Yes, like usual, I’m talking about a fly.

And what a beautiful new Soldier Fly (Stratiomyidae) it is! Meet Paraberismyia chiapas Woodley, which has only just been described, despite having been a prized possession for nearly 20 years.

Paraberismyia chiapas Woodley - Female holotype (Figures 1 & 2 from Woodley, 2013)

Holotype Female of Paraberismyia chiapas Woodley by Norm Woodley CC-BY (Figures 1 & 2 from Woodley, 2013)

A member of the Beridinae, a subfamily of soldier flies known for their colourful & metallic appearance, Paraberismyia chiapas had been recognized as an undescribed species by Norm Woodley in 1995 when he described the genus Paraberismyia, but because he only knew of a single female specimen at the time, he decided to hold off on formally describing the species until he could locate additional specimens. Fast forward nearly 20 years, and a second specimen of Paraberismyia chiapas has yet to be collected, so Norm decided to not wait any longer and published this and 2 other new species in the journal ZooKeys earlier this week.

Having only a single specimen collected in 1985 by Amnon Friedberg (who happens to be the same guy who studied and described several of the “ant-winged” fruit flies that went viral earlier this month — the dipterological community is an incestuous little group…), we don’t know much about this species, other than it lives in the Chiapas region of Mexico (hence it’s species name) at an elevation of 2,000 metres.

Despite there being a large entomological survey project going on in the region for the past 5 years (the LLAMA project, which, while focused on leaf-litter arthropods, you could imagine would have collected a bright green & gold fly that likely breeds and develops in leaf-litter like other members of the Beridinae), Paraberismyia chiapas has yet to make a second appearance, leaving many questions about it’s apparent rarity unanswered: is this species only found on a single mountain top, or is it restricted to a small expanse of high elevation habitats in the southern Sierra Madre de Chiapas mountain range? Is the window when adults are actively flying so short that other expeditions have just missed it? Or more concerning, has Paraberismyia chiapas disappeared completely, stolen from us before we had even given it a name? Obviously we can’t answer any of these questions, or the hundreds more regarding it’s biology and natural history (including why it’s so stunningly coloured), until someone hits pay dirt and rediscovers this little gem.

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The other 3 species in the genus Paraberismyia are equally stunning, and I highly recommend taking a look at them (the paper is open access).
Woodley N. (2013). A revision of the Neotropical genus Paraberismyia Woodley (Diptera, Stratiomyidae, Beridinae) with three new species, ZooKeys, 353 25-45. DOI: 10.3897/zookeys.353.6301 (OPEN ACCESS)

To Know a Fly – Colobostema marielae

Cool Science, Taxonomy, To Know A Fly 1 Response »

May 132013

On Mother’s Day, many men pick up flowers or make breakfast in bed for their partners to show their appreciation for everything moms do. If you’re a taxonomist, you can go a step further and give the eternal gift of patronymy (or perhaps matronymy?) by naming a new species after the mother of your offspring!

In a recent Zootaxa paper, that’s exactly what Heron Huerta did, naming a new species of Mexican Scatopsidae Colobostema marielae, and earning extra brownie points in the etymology:

This new species is named after my wife, Mariela Trujillo De la Cruz, for her unconditional support, love and enthusiasm for my projects.

– Huerta, 2013

Scatopsidae are commonly referred to as minute black scavenger flies (or even less romantically, dung midges), and with larval habitats ranging from the decaying to the defecated, having something like this named for you may seem less like an honour and more like a thinly veiled insult. But when you consider your fly is 1 of only ~250 species known, that your fly’s relatives are found literally around the world and have been helping keep us out of the rot since the time of T. rex, and that, while not as flashy or well known as other organisms, someone has devoted their life to learning all there is to know about your fly and has decided that you are so important you should be forever immortalized as the namesake for this unique being, well, that’s a pretty powerful gift.

Happy Mother’s Day.

A Colobostema species from Alabama. Colobostema mariela apparently looks much like this, but with a uniquely constricted tergite 7 (you’ll just have to take Heron’s word on this one). Photo by Robert Lord Zimlich, used under CC BY-ND-NC 1.0 licence.

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Nominate this species for New Species of the Year!
HUERTA H. (2013). New species of the genus Colobostema Enderlein (Diptera: Scatopsidae) from Mexico, Zootaxa, 3619 (2) DOI: 10.11646/zootaxa.3619.2.6

To Know A Fly – Platypalpus apterus

Biology, Cool Science, Taxonomy, To Know A Fly 1 Response »

Apr 302013

Stop me if you’ve heard this one, but what do you call a wingless fly? Apterous of course!

Proving once and for all that taxonomists do indeed have a sense of humour, meet Platypalpus apterus De Freitas & Ale-Rocha.

Winglessness has independently evolved more than a hundred times across the order Diptera, but as this dance fly (Hybotidae) illustrates, the results are anything but pedestrian. Like its fully-winged relatives, Platypalpus apterus is an active hunter, only in this case scouring beneath the bark of Polylepis trees for earthbound arthropods unable to escape its piercing beak.

Considering Platypalpus apterus‘ inability to fly, it’s poetic that it was collected high above the clouds in the Andean paramo of Ecuador, in an area that is as beautiful as it is barren. In fact, aptery is incredibly common at high altitudes, with many different fly families exhibiting high levels of wingless diversity on mountainous islands set amongst the sky. There are several theories on why it may be advantageous for flies to forego their wings, including as a defense against strong winds capable of carrying individuals away and colder, cloudier conditions at altitude impacting the flies’ ability to warm up their flight muscles.

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Nominate this species for New Species of the Year!
De Freitas-Silva R.A.P. & Ale-Rocha R. (2013). A new apterous species of Platypalpus Macquart (Diptera: Hybotidae, Tachydromiinae) from Ecuador, Zootaxa, 3636 (4) 590-596. DOI: http://dx.doi.org/10.11646%2Fzootaxa.3636.4.6

To Know A Fly – Coquena stangei

Cool Science, Insects, Taxonomy, To Know A Fly 5 Responses »

Apr 222013

Bring up flies in casual conversation and undoubtedly you’ll receive a look of disgust from your company, often followed shortly thereafter by the words “hate”, “disgusting” or “gross”. Thanks to the culturally unsavoury and occasionally deadly deeds of but a few, flies the world over are generally regarded as creatures to crush, worth more dead than alive.

Considering the media’s tendency to only get excited over new species that are fuzzy, feathered or fossilized, you could be forgiven for not realizing that more than a thousand new species of fly are described every year by taxonomists from around the world. Even other taxonomists rarely acknowledge how cool and extraordinary flies are, as they’re the only major insect order not to be selected as one of the Top 10 New Species of the Year by Arizona State University’s International Institute for Species Exploration (yet; I encourage you to nominate you’re favourite new species via the link I’ve included at the end of the post).

So welcome to what I hope will become a weekly feature, where I’ll highlight a newly described species of fly, sometimes sharing the nuances of biological nomenclature, sometimes the tireless work of taxonomists, but always the incredible diversity of Diptera. Because as Vincent Dethier concludes in his entomological exploration To Know a Fly:

To know the fly is to share a bit in the sublimity of Knowledge. That is the challenge and joy of science.