Category: Researchers

Cicada researchers associated with academic institutions.

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Dominican Republic Genera Insectorum Odopoea W. L. Distant Zammarini

Odopoea degiacomii Distant, 1912

Odopoea degiacomii Distant, 1912, was described by British entomologist W. L. Distant in 1812.

Odopoea degiacomii is a visually impressive cicada with a prominent pronotal collar that should inspire thoughts of Dracula the Vampire (like other members of the cicada tribe Zammarini). It won’t suck your blood, but it will suck xylem sap from trees.

This cicada is found in the Dominican Republic and probably Haiti.

Scientific classification:
Family: Cicadidae
Sub Family: Cicadinae
Tribe: Zammarini
Genus: Odopoea
Species: Odopoea degiacomii Distant, 1912

Odopoea degiacomii Distant, 1912

An Odopoea degiacomii Stål genus description by W. L. Distant from Genera Insectorum:

Characters. — Head (including eyes) about equal in width t.. base of mesonotum, ocelli a little wider apart from eyes than from each other, eyes prominent, a little passing the anterior pronotal angles; face more or less longitudinally sulcate; rostrum about reaching the posterior cox*; pronotum shorter than mesonotum, the lateral margins angularly ampliate; mesonotum (including basal cruciform elevation) almost as long as head and pronotum together; abdomen broad, centrally ridged, the lateral areas more or less oblique, about as long as space between apex of head and base of cruciform elevation; operçula short, broad, not extending beyond base of abdomen; tympanal coverings outwardly complete, the orifices only exposed inwardly; tegmina three or more than three times as long as broad, apical areas eight; wings with six apical areas.

References:

  1. The illustration comes from the journal Genera Insectorum, and a specific article from 1914 by W. L. Distant titled Homoptera. Fam. Cicadidae, Subfam, Gaeaninae. Read it on the Biodiversity Heritage Library website.
  2. Species name information/verification comes from Allen Sanborn’s Catalogue of the Cicadoidea (Hemiptera: Auchenorrhyncha).
Categories
Francis Walker Genera Insectorum Puerto Rico Zammara Zammarini

Zammara intricata Walker, 1850

Zammara intricata Walker, 1850 (in case you’re wondering “Walker” is the person who first described this cicada, and 1850 was the year he described it) is another beautiful cicada belonging to the Zammara genus. Zammara cicadas are known for their prominent pronotal collars that inspire thoughts of Dracula the vampire, their brilliant green to turquoise colors, and infuscation (the dark areas) on their wings. Zammara intricata has a lot of infuscation in their wings, even for a Zammara. Intricata means “complex”, which might be a reference to the complexity of the infuscation.

It is found in Puerto Rico.

Scientific classification:
Family: Cicadidae
Sub Family: Cicadinae
Tribe: Zammarini
Genus: Zammara
Species: Zammara intricata Walker, 1850

Zammara intricata Walker, 1850

Zammara Amyot & Serville genus description by W. L. Distant:

Characters. — Head (including eyes) about as wide as base of mesonotum, ocelli farther removed from eyes than from each other, eyes prominent but scarcely projecting beyond the anterior pronotal angles, vertex strongly depressed before base of front; face longer than broad, narrowly sulcate; pronotum shorter than mesonotum, the lateral margins angularly ampliate; mesonotum about as long as head and pronotum together; metanotum exposed; abdomen short; tympanal coverings outwardly complete, the orifices very widely exposed internall} – ; opercula short, oblique; rostrum reaching or slightly passing the posterior coxae; tegmina usually three times as long as broad, apical areas eight; wings with six apical areas.

References:

  1. The illustration comes from the journal Genera Insectorum, and a specific article from 1914 by W. L. Distant titled Homoptera. Fam. Cicadidae, Subfam, Gaeaninae. Read it on the Biodiversity Heritage Library website.
  2. Species name information/verification comes from Allen Sanborn’s Catalogue of the Cicadoidea (Hemiptera: Auchenorrhyncha).
Categories
Brazil Ecuador Fidicinini François de Laporte Genera Insectorum Hemisciera W. L. Distant

Hemisciera maculipennis (de Laporte, 1832)

I’m starting a new series on this blog called “has its name changed?” I’m looking through old documents and papers and using modern documents like Allen Sanborn’s Catalogue of the Cicadoidea (Hemiptera: Auchenorrhyncha) to check. Cicada names change from time to time, based on new discoveries by the modern cicada research/science community, and sometimes to fix grammar (like gender agreement between genus and species).

This cicada is Hemisciera maculipennis (de Laporte, 1832), also known as the “stop and go” or “stop light” cicada because of the red and green color of its wings. If you want to see one in real life, they exist in Central and South America, specifically Panama, Ecuador, Brazil, and adjacent nations. If you’re in New York and you want to see one, they have a few in the collection at the Staten Island Museum — last time I was there, there was a faded one in a display by the door (UV rays fade cicada specimen colors).

Scientific classification:
Family: Cicadidae
Subfamily: Cicadinae
Tribe: Fidicinini
Sub Tribe: Guyana
Genus: Hemisciera
Species: Hemisciera maculipennis (de Laporte, 1832)

And, since 1914 at least, its name has not changed.

Hemisciera maculipennis (de Laporte, 1832)

A specimen from the Staten Island Museum:
Stop and Go

Hemisciera Amyot & Serville genus description by W. L. Distant:

Characters. — Head (including eyes) considerably broader than base of mesonotum, eves porrect, more or less stylate, length of head about equal to half its breadth between eyes, and distinctly shorter than pronotum which is about equal in length to mesonotum; abdomen a little shorter than space between apex of head and base of cruciform elevation, tympanal coverings in male with their inner margins strongly concave; metasternal plate well developed, centrally longitudinally impressed and anteriorly produced on each side; rostrum reaching the posterior coxae; anterior femora strongly spined beneath; opercula in male small, transverse, not extending beyond base of abdomen, tegmina about two and a half times as long as broad, with eight apical areas and the basal cell about as long as broad.

References:

  1. The illustration comes from the journal Genera Insectorum, and a specific article from 1914 by W. L. Distant titled Homoptera. Fam. Cicadidae, Subfam, Gaeaninae. Read it on the Biodiversity Heritage Library website.
  2. Species name information/verification comes from Allen Sanborn’s Catalogue of the Cicadoidea (Hemiptera: Auchenorrhyncha).
  3. Tribe information comes from: MARSHALL, DAVID C. et al.A molecular phylogeny of the cicadas (Hemiptera: Cicadidae) with a review of tribe and subfamily classification.Zootaxa, [S.l.], v. 4424, n. 1, p. 1—64, may 2018. ISSN 1175-5334. Available at: https://www.biotaxa.org/Zootaxa/article/view/zootaxa.4424.1.1
Categories
Citizen Science FAQs Neotibicen

Looking for adult cicadas at night

Nighttime is often the best time to find cicadas.

Nymphs, generally speaking, emerge soon after sunset. When I look for nymphs, I wait until sunset and start looking around tree roots and on tree trunks. Sometimes it takes hours, but usually, I find one (or many).

Cicada Nymph:
Neotibicen auletes nymph

Adult cicadas are easiest to find on hot, humid nights in well-lit areas like parking lots and the sides of buildings. You will find them clinging to illuminated walls and crawling on sidewalks. They end up on the ground, often because they fly into the wall and stun themselves. On a hot humid night — 85F or above — I’ll find an excuse (usually frozen desserts) to check the walls of the local supermarket for cicadas.

Cicadas, like many insects, are attracted to (or confused by) lights. There are many theories as to why insects are attracted to lights, and the reasons why probably vary by species. My guess (and this is just a guess) is that cicadas can’t tell day from night, or daylight (sun) from artificial lights, and so they think they’re using light to navigate away from a dark area (a tree trunk, dense brush), and then get very confused because they never seem to get anywhere once they reach the source of the light. I wish I could ask a cicada why.

Prime nighttime cicada location: a well-lit building and macadam parking lot:
Nighttime prime cicada location

Cicadas can damage their skin and innards by fling into and bouncing off walls:
Nightime N linnei with wound

A Neotibicen tibicen clinging to a cinderblock wall:
Nighttime N tibicen on wall

A Megatibicen auletes crawling on an illuminated sidewalk:
Megatibicen auletes in Manchester NJ

If you go looking for cicadas at night, make sure you have permission to be where you plan to look. Don’t trespass, and have respect for other people’s property.

Categories
Citizen Science Molting Neotibicen

Tips for making a time-lapse video of a cicada molting

Molting Morning Cicada

Time-lapse videos of insects molting can be as visually fascinating as they are scientifically important. Cicadas are amongst the best insect subjects for time-lapse because they’re relatively large, and depending on where you live, easy to find.

Equipment you’ll need for your time-lapse video:

  1. Lights. I use cheap LED and fluorescent lights. Not enough light and you’ll end up with a grainy video. Too much light and you’ll over-expose the subject and miss some important details. You’ll need a stand or tripod for your lights as well.
  2. A tripod for your camera. You want your camera to be as steady as possible. Hand-holding the camera is not recommended. The molting process takes hours.
  3. A camera. Some cameras have a Time-Lapse mode, but you could also take a photo every 30 seconds or so and use software to assemble the photos into a video. A camera with a large view screen is recommended so you can make adjustments to the lighting and framing of the insect.
  4. A platform for your cicada/insect. If you film outside use the tree the insect decides to molt on. If you film inside, build a structure using tree branches, or other materials the nymph can anchor onto.
  5. Video editing software. Free software works fine, as long as it lets you compile a series of photos into a single video.

I made my own platform out of some driftwood and a 2×4 I had lying around. Cheap but effective. Cicadas need to hang perpendicular to the ground so their wings will properly expand, so your creation needs to allow for that. A lot of people simply use a roll of paper towel.

Rig for Filming cicadas

Skills you’ll need to practice

  1. Patience. Unless you’re a pro who films wildlife all the time, you might need a few tries to get it right.
  2. Learn how to use the Time-Lapse feature of your camera.
  3. Learn how to light a small subject like a cicada.
  4. The ability to stay up late. The entire molting process can take up to 5-6 hours, especially if you want to let the cicada’s wings and body harden a bit. Coffee or tea helps (you, not the cicada).

If you’ve never tried filming a cicada molting before, you can practice lighting, focusing and using the time-lapse features of your camera with a paper model of a cicada. Just draw a cicada onto a small piece of paper, and pin it to a tree. If you know origami, even better.

Finding a specimen

I begin looking for cicada nymphs about 15 minutes after sunset. I find them at the base of trees, or ascending tree trunks. If you plan on filming indoors, or on a custom platform, treat the cicada with care. Be very gentle, and place the cicada nymph in a spacious enclosure — preferably one that allows it to grip, and hang off the side. I transport cicadas in a pop-up butterfly pavilion/habitat — these portable enclosures are made for butterflies, but they work well for other insects, like cicadas. Don’t forget to release the cicada the following day as well.

The overall process for shooting indoors

  1. Set up your rig: platform, lights, camera. Make sure your camera has an empty memory card in it and is charged/plugged in. Make sure all the lights are working. Place a towel or something soft at the base of the platform, in case the cicada falls (it happens).
  2. Collect your specimen. Bring a flashlight and a butterfly pavilion (or similar container). Gently grab the cicada nymph with your fingers and place in the container. do not collect a cicada that has already begun molting. Take some (not a lot) of tree branches with you. You can use the branches to augment your platform.
  3. Place the cicada at the base of the platform. Let it explore and become comfortable. Place it back at the base of the platform if it falls or wanders off.
  4. Once the cicada is ready to molt, it will stay still for a while. This is a good time to get your camera in focus and lights in the right position.
  5. The skin of the back of the nymph will split — look and listen for that. Start time-lapse filming. Example.
  6. Re-frame the camera as necessary to capture the cicada’s wings as they inflate.
  7. An hour after the cicada’s wings move into place (see that happen), you can stop filming, and place the cicada into the safety of the butterfly pavilion — or on a tree outside.
  8. Return the cicada to the outdoors within 12 hours.
  9. Use video editing software to compile the time-lapse frames into a video. I set each frame to 0.2 seconds — experiment with the times.
  10. Add the species of the cicada, the location where you found it, and other comments to the video.
  11. Share your video with friends, family and the world.

More tips:

  • The process takes a long time — you might be up until 1 or 2 am in the morning. Be prepared for that.
  • Film some non-time-lapse video as well. There are key moments during the molting process that happen quickly, like when the cicada pulls its abdomen from its old skin. Having a video of that is nice.
  • Be prepared to adjust the framing and focus a few times during the shoot. Don’t adjust too much though — just if the cicada’s wings fall out of frame.
  • The cicada will double its overall size. Its wings will hang downward. Be prepared for that when you frame the shot.

Some results:

My latest time-lapse video:

Notice how I frame the video.

A non-time-lapse detail:

A video where I used a tree branch to make the molting look more natural

Categories
Cordyceps Diceroprocta Matt Kasson

Cordyceps infected Citrus Cicadas

Here’s another fungi story coming from the WVU Kasson Lab: Cordyceps infected Citrus Cicadas (Diceroprocta apache).

The story goes like this: because of Ed Yong’s article about the Massospora fungus that infects cicadas, someone sent the Kasson Lab photos, and then samples, of Diceroprocta apache (Citrus Cicadas) infected with a different type of fungus: Cordyceps. Looks like the lab is going to study this fungus, and I’m sure they’ll produce a paper.

Categories
Cicada Killer Wasps Matt Kasson Ophiocordyceps

Ophiocordyceps infected Cicada Killer Wasp

Graduate students at the West Virginia University’s Kasson Laboratory discovered a Cicada Killer Wasp (Sphecius speciosus) infected with Ophiocordyceps (a type of fungi). Ophiocordyceps can also infect cicadas.

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Accelerations Brood V Chris Simon Elias Bonaros Jin Yoshimura John Cooley Magicicada Periodical Periodical Stragglers Roy Troutman

New paper: The periodical cicada four-year acceleration hypothesis revisited and the polyphyletic nature of Brood V

A new paper about periodical cicadas! View it: https://peerj.com/articles/5282/

“The periodical cicada four-year acceleration hypothesis revisited and the polyphyletic nature of Brood V, including an updated crowd-source enhanced map (Hemiptera: Cicadidae: Magicicada)”

Authors: John R. Cooley, Nidia Arguedas, Elias Bonaros, Gerry Bunker, Stephen M. Chiswell, Annette DeGiovine, Marten Edwards, Diane Hassanieh, Diler Haji, John Knox, Gene Kritsky, Carolyn Mills, Dan Mozgai, Roy Troutman, John Zyla, Hiroki Hasegawa, Teiji Sota, Jin Yoshimura, and Chris Simon.

Abstract:

The periodical cicadas of North America (Magicicada spp.) are well-known for their long life cycles of 13 and 17 years and their mass synchronized emergences. Although periodical cicada life cycles are relatively strict, the biogeographic patterns of periodical cicada broods, or year-classes, indicate that they must undergo some degree of life cycle switching. We present a new map of periodical cicada Brood V, which emerged in 2016, and demonstrate that it consists of at least four distinct parts that span an area in the United States stretching from Ohio to Long Island. We discuss mtDNA haplotype variation in this brood in relation to other periodical cicada broods, noting that different parts of this brood appear to have different origins. We use this information to refine a hypothesis for the formation of periodical cicada broods by 1- and 4-year life cycle jumps.

Categories
Massospora Matt Kasson

Discovery of psychoactive plant & mushroom alkaloids in ancient fungal cicada pathogens

Many cicada species suffer from fungal pathogens belonging to the genus Massospora. These fungi destroy the reproductive organs of males and cause them to behave like female cicadas — in the case of Magicicada cicadas, they flick their wings instead of singing — and they attempt to mate with other males, thus spreading the fungus.

A new paper has been published titled Discovery of psychoactive plant & mushroom alkaloids in ancient fungal cicada pathogens. Authors: Greg Boyce, Emile Gluck-Thaler, Jason C. Slot, Jason E. Stajich, William J. Davis, Tim Y. James, John R. Cooley, Daniel G. Panaccione, Jorgen Eilenberg, Henrik H. De Fine Licht, Angie M. Macias, Matthew C. Berger, Kristen L. Wickert, Cameron M. Stauder, Ellie J. Spahr, Matthew D. Maust, Amy M. Metheny, Chris Simon, Gene Kritsky, Kathie T. Hodge, Richard A. Humber, Terry Gullion, Dylan P. G. Short, Teiya Kijimoto, Dan Mozgai, Nidia Arguedas, Matthew T. Kasson. You can access it on biorxiv.

This new paper makes discoveries about the fungi.

Abstract:

Entomopathogenic fungi routinely kill their hosts before releasing infectious conidia, but select species keep their hosts alive while sporulating to enhance spore dispersal. Recent expression and metabolomics studies involving host-killing entomopathogens have helped unravel infection processes and host responses, yet the mechanisms underlying active host transmission in insects with Entomophthoralean fungal infections are completely unexplored. Here we report the discovery, through global and targeted metabolomics supported by metagenomics and proteomics, of the plant amphetamine, cathinone, in Massospora cicadina-infected periodical cicadas, and the mushroom tryptamine, psilocybin, in M. platypediae- and M. levispora-infected annual cicadas. The neurogenic activities of these alkaloids provide a hypothetical framework for a chemically induced extended phenotype of Massospora that alters cicada behavior by increasing endurance and suppressing feeding prior to death.

Massospora bae

Categories
Allen F. Sanborn Papers and Documents

Z. P. Metcalf Collection of Literature on Auchenorrhyncha

Here is information about a research resource for Auchenorrhyncha researchers. I’m posting at the request of Lew Dietz and Allen F Sanborn.

Z. P. Metcalf Collection of Literature on Auchenorrhyncha

Dear Colleagues,

We would like to make you aware of an exciting resource that is available to you at the Special Collections Research Center at NCSU Libraries in Raleigh, North Carolina.

The Zeno Payne Metcalf Entomology Research Collection is an outstanding resource for scholars. The link to the finding aid is here:

https://www.lib.ncsu.edu/findingaids/mc00220

And the link to the associated database for individual publications is here: http://metcalf.lib.ncsu.edu/metcalf/

If you would like to make an appointment to view any materials in person, or to request a copy of a publication remotely, please email us at: library_specialcollections@ncsu.edu

We typically need 2-3 business days to pull selected materials from off-site storage. More information about visiting the Special Collections Research Center can be found here: https://www.lib.ncsu.edu/scrc/using-materials

Finally, we are pleased to let you know that low-resolution copies (PDFs) only cost 50 cents per page, but, if you bring a camera (no flash allowed) or cell phone, you can take photographs at no cost in the Special Collections Reading Room. If you are unable to visit in person, we can still provide low-resolution copies (PDFs) to you for the fees outlined above. For security reasons, arrangements to pay using a major credit card (preferred) or bank transfer, should be made by telephone. Copyright law applies; see: https://www.lib.ncsu.edu/scrc/copyright

If you have any further questions about the Metcalf materials or copyright, please don’t hesitate to contact us at library_specialcollections@ncsu.edu

Sincerely, Gwynn Thayer, Acting Department Head, Special Collections Research Center (12 June 2018)