Cicada Mania

Dedicated to cicadas, the most amazing insects in the world.

April 4, 2020

Megatibicen pronotalis walkeri Metcalf, 1955 aka Walker’s Cicada

Filed under: Cryptotympanini | Megatibicen | United States — Tags: — Dan @ 3:55 pm

Megatibicen pronotalis walkeri Metcalf, 1955 aka Walker’s Cicada.

Megatibicen pronotalis photo by Roy Troutman, taken in Batavia, Ohio
Photo by Roy Troutman in Batavia, Ohio.

â­˘ All Megatibicen pronotalis images and info on cicadamania.com.

There’s two sub-species of Megatibicen pronotalis: Megatibicen pronotalis pronotalis Davis — found in IA, MO, NE, ND, OK, SD — and Megatibicen pronotalis walkeri Metcalf — found in AL, AR, FL, GA, IL, IN, IA, KS, KY, LA, MD, MI, MN, MS, MO, NE, NC, ND, OH, OK, SD, TN, TX, VA, WV, WI, and WY.

Song type: Call


Source: ©Insect Singers | Species: M. pronotalis walkeri

Video Playlist

Playlists contain multiple videos found on YouTube.

Name, Location and Description

Key to Species by Wm. T. Davis from MISSISSIPPI CICADAS, WITH A KEY TO THE SPECIES OF THE SOUTHEASTERN UNITED STATES.1

A. Large, heavy bodied species ; head broad, uncus simple, and first cross vein in the fore wings starting from radius 3 far back, or about one third distant from base of first marginal cell.

BB. Uncus broad at the base, triangular in shape and generally about as broad as long. Opercula broad and rounded at the extremities no definite black area on the central part of the abdomen beneath, usually unicolorus.

EE. Wings broad, hind margin of the pronotum or collar green or greenish and more than 2 mm. broad.

FF. Anal cells or membranes at base of fore and hind wings light orange, two prominent marks on the mesonotum resembling the Hebrew letter resh inverted.

Fore wings with the first and second cross veins but faintly or not at all clouded and the abdominal segments margined posteriorly with brown. In fresh specimens there is usually a median row of white spots on the dorsum of the abdomen, .marginalis (Walker).

Classification:

Family: Cicadidae
Subfamily: Cicadinae
Tribe: Cryptotympanini
Subtribe: Cryptotympanina
Genus: Megatibicen
Species: Megatibicen pronotalis
Sub-species: Megatibicen pronotalis walkeri Metcalf, 1955
Sub-species: Megatibicen pronotalis pronotalis Davis, 1938

List of sources

  1. Davis, W.T. 1918. MISSISSIPPI CICADAS, WITH A KEY TO THE SPECIES OF THE SOUTHEASTERN UNITED STATES. Journal of the New York Entomological Society, Vol. XXVI, Nos. 3-4. Read it on archive.org.
  2. Full Binomial Names: ITIS.gov
  3. Common names: BugGuide.net; The Songs of Insects by Lang Elliott and Wil Herschberger; personal memory.
  4. Locations: Biogeography of the Cicadas (Hemiptera: Cicadidae) of North America, North of Mexico by Allen F. Sanborn and Polly K. Phillips.
  5. Descriptions, Colors: personal observations from specimens or photos from many sources. Descriptions are not perfect, but may be helpful.

Notes:

  • Some descriptions are based on aged specimens which have lost some or a lot of their color.

March 24, 2020

Megatibicen pronotalis

Filed under: Bill Reynolds | Cryptotympanini | Neotibicen | United States — Tags: — Dan @ 8:57 pm

Megatibicen pronotalis from Bill Reynolds’ collection.

Neotibicen pronotalis from Bill Reynolds collection

Neotibicen pronotalis from Bill Reynolds collection #2

March 15, 2020

Various Megatibicen and Neotibicen compared

This image was created by Paul Krombholz back when Megatibicen and Neotibicen were just Tibicen.

Tibicen composite by Paul Krombholz

Top row, left to right:
Neotibicen davisi (formerly Tibicen davisi)
Megatibicen auletes (formerly Tibicen auletes)
Megatibicen figuratus (formerly Tibicen figurata)
Megatibicen pronotalis (formerly Tibicen marginalis)

Bottom row, left to right:
Neotibicen tibicen tibicen (formerly Tibicen chloromera)
Neotibicen pruinosus (formerly Tibicen pruinosa)
Neotibicen lyricen (formerly Tibicen lyricen)

October 25, 2015

Catching Cicadas in North Carolina

Filed under: Bill Reynolds | Neotibicen — Tags: , , , — Dan @ 12:51 pm

This past summer I had the opportunity to meet cicada expert Bill Reynolds. Bill manages the Arthropod Zoo at the North Carolina Museum of Natural Sciences in Raleigh, North Carolina.

The arthropod zoo in the North Carolina Museum of Natural Science

Bill’s specialty is Neotibicen (formerly Tibicen) cicadas. Neotibicen are a genera of broad-headed, medium-sized, well-cammouflaged cicadas that belong to the tribe Cryptotympanini.

I met Bill at the museum and allowed me to view his massive collection of Neotibicen — box after box of cicadas, all carefully pinned and labeled. See a small portion of Bill’s collection.

Megatibicen pronotalis:
Neotibicen pronotalis from Bill Reynolds collection #2

Later we went for lunch, and listened for N. winnemanna hybrids in the neighborhood surrounding the museum. Close to the entrance of the museum, we heard a cicada that started with the call of the N. winnemanna and ended with the call of N. linnei — likely a hybrid. Around the museum neighborhood we heard other cicadas that sounded like a N. winnemanna but not quite. Very interesting.

Personally, my methods of catching cicadas are: 1) waiting until dark and grabbing them when they are still nymphs or eclosing, 2) grabbing them by hand on a tree or in flight, or 3) waiting for them to die, and collecting them from the ground. Bill introduced me to two new methods: 1) netting cicadas, and 2) finding cicadas under lights in parking lots.

I own a net (purchased from BioQuip) but I haven’t practiced using it. Bill Reynolds is a master of spotting and netting cicadas. He uses a net with 3 or 4 extension poles, which I belive gives him a 20′ reach. Bill is a cicada netting ninja. In a small, roadside patch of trees he caught three N. winnemanna in a matter of minutes.

Here is a video of that grove of N. winnemanna patronized trees. (Listen, don’t watch. The video camera work is erratic and you won’t see any live cicadas):

Here is a N. winnemanna Bill caught with a net:
Neotibicen winnemanna Garner NC #2

Finding cicadas under parking lot lights require you to cruise shopping mall parking lots on hot summer nights. Wait until midnight, and slowly drive behind malls looking for cicadas clinging to walls or resting on the ground. It is simple as that.

Here is a N. lyricen engelhardti found by Bill.
Neotibicen lyricen engelhardti Raleigh NC #5

Whenever catching cicadas you should be respectful of private property, don’t cause a disturbance, and be mindful of local laws.

August 24, 2014

It is possible to identify Tibicen just after they have molted

Paul Krombholz has come through with an awesome guide to identifying Tibicens just after they have molted. Click the image below for an even larger version. Note that the genus of these cicadas has changed to either Megatibicen or Neotibicen — notes below.

Paul Krombholz's image of recently molted and adult cicadas compared

Notes on the species from Paul:

N. pruinosus [formerly T. pruinosa]—Newly molted adult has darker mesonotum (top of mesothorax) than the very common T. chloromera. Abdomen is a golden orange color. Older adult has dark olive on lateral sides of mesonotum, lighter green below the “arches”.

M. pronotalis (formerly walkeri, marginalis)—Quite large. The reddish brown color can be seen on the mesonotum of newly molted adult. Older adult has solid green pronotum (top of prothorax) and red-brown markings on sides of mesonotum. Below the “arches” the mesonotum color can range from carmel to green. Head is black between the eyes.

N. tibicen [T. chloromerus, T. chloromera]—has large, swollen mesonotum, quite pale in a newly molted adult and almost entirely black in an older adult. Individuals from east coast can have large russet patches on sides of mesonotum. The white, lateral :”hip patches” on the anteriormost abdominal segment are always present, but the midline white area seen in my picture is sometimes absent.

N. davisi—Small. This is a variable species, but all have an oversized head which is strongly curved, giving it a ‘hammerhead’ appearance. Newly molted individuals are usually brown with blueish wing veins that will become brown, but some have more green in wing veins. Some may have pale mesonotums that will become mostly black. Older adults vary from brownish to olive to green markings on pronotum and mesonotum.

M. figuratus [formerly T. figurata]—a largish entirely brown cicada. Newly molted adult has a pink-brown coloration with some blueish hints. Older adult has chestnut-brown markings and no green anywhere. Head is not very wide in relation to the rest of the body. The small cell at the base of the forewing is black.

M. auletes—a large, wide-bodied cicada. Newly molted adult is very green, but the older adult loses most of the green, usually retaining an olive posterior flange of the pronotum. The dorsal abdomen of the adult has a lot of powdery white on the anterior and posterior segments with a darker band inbetween.

August 7, 2011

Walker’s Cicada aka Megatibicen pronotalis (aka T. walkeri, T. marginalis)

Filed under: Annual | Roy Troutman | Tibicen — Tags: — Dan @ 7:24 pm

Roy Troutman sent us these amazing photos of a female Walker’s Cicada aka Megatibicen pronotalis (aka T. walkeri, T. marginalis) taken in Batavia, Ohio. As you can guess by the various akas (also known as), the Megatibicen pronotalis has been known by several species names in the past. Sometimes it takes cicada researchers a while to figure out that two different species are the same species (which is probably the case here). Tibicen pronotalis also sounds exactly like another species of Tibicen: Megatibicen dealbatus. The major difference between the M. pronotalis and the M. dealbatus is the M. dealbatus has more pruinose than the M. pronotalis. Pruinose is the white, chalky substance that appears on the bodies of cicadas.

Megatibicen pronotalis photo by Roy Troutman, taken in Batavia, Ohio

Megatibicen pronotalis photo by Roy Troutman, taken in Batavia, Ohio

Megatibicen pronotalis photo by Roy Troutman, taken in Batavia, Ohio

Megatibicen pronotalis photo by Roy Troutman, taken in Batavia, Ohio

Walker’s Cicada is found in 18 mid-western and southern states. Read more about this pretty cicada on Bug Guide, and listen to its song on Insect Singers.

August 12, 2007

Megatibicen pronotalis walkeri from Davenport, Iowa

Filed under: Megatibicen | Tibicen — Tags: — Dan @ 1:28 pm

Ben sent us these photos of a Megatibicen pronotalis walkeri (Walker’s Cicada) taken in Davenport, Iowa.

Iowa Tibicen

Iowa Tibicen

Note: the genus of this cicada has changed since 2007 (when this was originally posted) from Tibicen to Megatibicen.

August 21, 2006

Auletes IS the biggest USA cicada!

Cicada researcher Kathy Hill took this unbelievable photo of 18 different USA Neotibicen & Megatibicen specimens, plus a Quesada gigas (upper right) for comparison.

Kathy Hill. Auletes is the biggest Tibicen

Click/tap the image for a much larger version. Contact Insect Singers for more information about the image.

I just took a photo of all the “eastern USA” Tibicens except
latifasciata, which we haven’t got yet (I didn’t include the “little
western” Tibicens like T. texana that are more centrally located
either). But I did also add T. duryi from the west coast and Q.
gigas, just for comparison.

I just wanted to prove that auletes IS the biggest USA cicada :)

Note that the these cicadas were reorganized into two new genera: Megatibicen (larger USA Tibicen) and Neotibicen (smaller USA Tibicen) since this original announcement in 2006.