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April 18, 2020

Davis’ Key to Species of the Genus Tibicen found in the Southeastern United States

Filed under: Cryptotympanini | Diceroprocta | Megatibicen | Neotibicen | William T. Davis — Tags: , , , , , , , , , , , , , , , , , , , , — Dan @ 10:00 pm

Davis provided a key of cicadas that belong to the then genus Tibicen in his 1918 article Mississippi Cicadas, with a Key to the Species of the Southeastern United States from volume 26 of the Journal of The New York Entomological Society. Download it from archive.org. This guide works for the Northeast and Midwest as well.

Mississippi Cicadas

Since 1918, genus and some species names have changed, so I’m going to present the key here, with highlighted notes on the updated names + images (when I have them). I’ll try to replicate the formatting of the original document as best I can.

Here goes…

Key to Species of the Genus Tibicen found in the Southeastern United States [works for most states east of the Rocky Mountains].

Note: the cicadas in the key are now organized in three genera: Neotibicen (A B), Megatibicen (A BB), and Diceroprocta (AA).

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

     B. Uncus longer than broad. Black species with green or greenish markings and black area on the central part of the abdomen beneath, except in sayi [sayi = Neotibicen tibicen tibicen], and new variety of davisi [new variety of davisi = Neotibicen davisi harnedi].

Note: this group of cicadas (B) are now organized under the genus Neotibicen, not Tibicen.

         C. Hind margin of pronotum or collar, green or greenish.

             A narrow irregular area of black on the under side of the abdomen; opercula short and broad, and usually in the males an attenuated, pruinose [frosty white] stripe each side on the dorsum of segment three … pruinosa (Say). [pruinosa = Neotibicen pruinosus pruinosus].

N. pruinosus

Neotibicen pruinosus pruinosus photo by Paul Krombholz.

             Dorsum of abdomen with the hind margin of the segments more or less brown and generally but a trace of pruinose stripe each side on segment three … pruinosa var. winnemanna (Davis) [pruinosa var. winnemanna = Neotibicen winnemanna].

[Generally speaking, east of the Appalachian mountains, you’ll find Neotibicen winnemanna, and west, it’s Neotibicen pruinosus.]

Neotibicen winnemanna Garner NC
Photo of a Neotibicen winnemanna.

             Dorsum of abdomen shining black with a broad pruinose mark each side on segment three; blackened area on under side of abdomen more in the nature of an even stripe … pruinosa var latifasciata (Davis) [pruinosa var. latifasciata = Neotibicen latifasciatus].

             A longitudinal band of black on the under side of the abdomen, the opercula more lobate, and the margin of the front wings suddenly bent near the middle … linnei (Smith & Grossbeck) [linnei = Neotibicen linnei].

Neotibicen linnei
Photo of a Neotibicen linnei.

             A definite longitudinal band of black on the under side of the abdomen; head with the front rather prominent. Not a large species … canicularis (Harris) [canicularis = Neotibicen canicularis].

             An irregular band of black on the under side of the abdomen, head rounded in front; a rather small species … davisi (Smith & Grossbeck) [davisi = Neotibicen davisi davisi].

             Abdomen greenish centrally on under side, blackened area wanting, marginal cells of fore wings clouded … davisi var. harnedi new variety [davisi var. harnedi = Neotibicen davisi harnedi].

Krombholz Davisi compared
Photo by Paul Krombhold. Neotibicen davisi harnedi (left), Neotibicen davisi davisi (right).

        CC. Hind margin of pronotum or collar black or nearly so (except in sayi var. australis).

            D. Central area of the abdomen beneath black.

                 Opercula long and with the legs usually somewhat chest- nut colored ; the uncus when seen in profile forked, resembling the open mouth of a snake … similaris (Smith & Grossbeck) [similaris = Neotibicen similaris similaris].

                 Opercula much shorter, more rounded, and the black area on the under side of the abdomen in the nature of an even stripe. Uncus not forked … lyricen (De Geer) [lyricen = Neotibicen lyricen lyricen].

                 Blacker than typical lyricen, lacking the considerable amount of fulvous markings on the pronotum and mesonotum. A fulvous somewhat anchor-shaped mark centrally on the pronotum … lyricen var. engelhardti (Davis) [lyricen var. engelhardti = Neotibicen lyricen engelhardti].

            DD. Central area of the abdomen not black beneath, often pruinose, as well as the long opercula.

                 Collar black, often with a greenish spot each side near the outer angles. … sayi (Smith & Grossbeck) [sayi = Neotibicen tibicen tibicen].

                 Collar all green or nearly so, as well as the pronotum and mesonotum … sayi var. australis (Davis) [sayi = Neotibicen tibicen australis].

    BB. The uncus is 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.

Note: this group of cicadas (BB) are now organized under the genus Megatibicen, not Tibicen.

         E. Wings long and narrow, collar 2 mm. or less in breadth at central portions ; dorsum of abdomen black or nearly so.

             Basal cell of fore wings rusty in color, anal cells (membranes) of both pair of wings gray; usually expands 110 mm. or more … resonans (Walker) [resonans = Megatibicen resonans].

Neotibicen resonans photos by Joe Green from 2007, taken in Florida.
Photo of a Megatibicen resonans by Joe Green.

             Basal cell of fore wings often black or nearly so, anal cells of both pair of wings yellowish. Expands about 100 mm … figurata (Walker) [figurata = Megatibicen figuratus].

M. figurata
Photo of a Megatibicen figuratus by Paul Krombholz.

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

             F. Anal cells or membranes at base of fore and hind wings gray.

                 Dorsal segments of the abdomen not margined with brown ; in fresh specimens the basal segments pruinose, also the terminal segments, leaving the four middle segments black. A large species expanding over 110 mm. … auletes (Germar) [auletes = Megatibicen auletes].

Megatibicen auletes, the largest cicada in North America
Photo of a Megatibicen auletes.

             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 clouded, and the dorsum of the abdomen brownish or brownish black … resh (Haldeman) [resh = Megatibicen resh].

Megatibicen resh molting adult
Photo of a Megatibicen resh.

                 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) [marginalis = Megatibicen pronotalis walkeri].

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

AA. Small species; wings starting from about the middle of the first marginal cell.

Note: this group of cicadas (AA) are now organized under the genus Diceroprocta, not Tibicen.

     G. First and second cross veins of fore wings clouded.

         Expanse of wings about 90 mm … biconica (Walker) [biconica = Diceroprocta biconica].

         Expanse of wings about 60 mm … olympusa (Walker) [olympusa = Diceroprocta olympusa].

Diceroprocta olympusa photos by Joe Green from 2007.
Photo of a Diceroprocta olympusa by Joe Green.

     GG. First and second cross veins of fore wings not clouded, wings clear throughout and expanding about 70 mm.

         Head rather large, front rounded, collar greenish or yellowish and contrasted in color rather sharply with the brown and black of pronotum and mesonotum … viridifascia (Walker) [viridifascia = Diceroprocta viridifascia].

         Head proportionately smaller than in the last ; front more pro- truding;- collar not so contrastingly colored and fore wings narrower … vitripennis (Say) [vitripennis = Diceroprocta vitripennis].


Diceroprocta vitripennis photo by Paul Krombholz.

and that’s all folks…

April 7, 2020

Neotibicen latifasciatus (Davis, 1915) aka Coastal Scissor(s) Grinder Cicada

Filed under: Cryptotympanini | Neotibicen | United States | William T. Davis — Tags: — Dan @ 8:41 pm

Neotibicen latifasciatus (Davis, 1915) aka Coastal Scissor(s) Grinder Cicada.

Male Neotibicen latifasciatus on cedar 2

See all Neotibicen latifasciatus images & information on cicadamania.com.

Song


Source: ©Insect Singers.

Name, Location and Description

Wm. T. Davis description

Neotibicen latifasciatus was described in 1915 by Davis in the article Notes on Some Cicadas from the Eastern and Central United States with a Description of a New Variety of Cicada Pruinosa in the Journal of The New York Entomological Society. 1

Smith and Grossbeck say of the specimens they had from the coast of New Jersey and which we now know to be a variety: “Abdomen above black, base of first segment with a white, heavily pruinose lateral dash, which encroaches to some extent upon the second segment; a similar but longer and broader lateral dash extends along the base of the third segment and a spot of the same color is on each side of the eighth segment. In the female the dash of the second segment differs from that of the male in not becoming attenuated dorsally, but in being squarely truncated.”

For the variety thus described with the broad white lateral dashes on segment three, we propose the name of latifasciafa. We then have Cicada pruninosa [now Neotibicen pruinosus] as described by Say, with the tergum entirely black or nearly so, with the attenuated white stripe at the lateral base of the third abdominal segment, being the form common from Indiana, Missouri, Nebraska, Kansas, etc., of which we figure a male from Chetopa, Kansas ; Cicada pruinosa var. latifasciata so far known only from the coastal region of the eastern and southern United States, with the broad stripe on segment three and abdomen beneath more shining black, of which we figure a male from Cape May Co., New Jersey, and Cicada pruninosa var. winnemanna [now Neotibicen winnemanna] with the hind margins of the abdominal segments more or less fulvous, the second segment having the band broader than the others and a white streak generally hardly discernible each side at the base of the third segment, of which we figure a male from Plummer’s Island, Maryland. The females of these cicadas have the charactertistic markings far less distinct than in the males and occasionally some are entirely absent.

Identification key by Wm T Davis2

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.

B. Uncus longer than broad. Black species with green or greenish markings and black area on the central part of the abdomen beneath, except in sayi, and new variety of davisi.

C. Hind margin of pronotum or collar, green or greenish.

Dorsum of abdomen shining black with a broad pruinose mark each side on segment three ; blackened area on under side of abdomen more in the nature of an even stripe.
pruinosa var. latifasciata (Davis.)

Classification:

Family: Cicadidae
Subfamily: Cicadinae
Tribe: Cryptotympanini
Subtribe: Cryptotympanina
Genus: Neotibicen
Species: Neotibicen latifasciatus (Davis, 1915)

List of sources

  1. (1) Davis, W.T. 1915. Notes on Some Cicadas from the Eastern and Central United States with a Description of a New Variety of Cicada Pruinosa. Journal of The New York Entomological Society. Vol 23, Pages 1-10. Read on archive.org.
  2. (2) 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. Read on archive.org.
  3. Full Binomial Names: ITIS.gov
  4. Common names: BugGuide.net; The Songs of Insects by Lang Elliott and Wil Herschberger; personal memory.
  5. Locations: Biogeography of the Cicadas (Hemiptera: Cicadidae) of North America, North of Mexico by Allen F. Sanborn and Polly K. Phillips.
  6. 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 28, 2020

More Neotibicen latifasciatus photos

Filed under: Cryptotympanini | Neotibicen | Photos & Illustrations — Tags: — Dan @ 1:03 pm

These Neotibicen latifasciatus photos came from a ‘cicada hunt’ in the summer of 2016 in Cape May county New Jersey. See more here.

Male Neotibicen latifasciatus:
male Neotibicen latifasciatus 03

Male Neotibicen latifasciatus on cedar:
Male Neotibicen latifasciatus on cedar

Male Neotibicen latifasciatus on cedar:
Male Neotibicen latifasciatus on cedar 2

Male Neotibicen latifasciatus on cedar:
Male Neotibicen latifasciatus on cedar

Male Neotibicen latifasciatus:
male Neotibicen latifasciatus

Neotibicen latifasciatus exuvia:
Neotibicen latifasciatus exuvia

July 9, 2017

Scissors Grinders

Filed under: Neotibicen — Tags: , , , , — Dan @ 12:21 pm

Back in the day — 1970s and earlier — people would sharpen scissors, knives, and tools rather than throw them out and buy new ones. A scissors grinder was a person who would sharpen your scissors for you. They used an abrasive wheel to grind your scissors sharp. The sound of the metal of a scissor gliding across the sharpening stone made a unique sound — a sound used to describe the sound some cicadas make.

These days (2017 when I wrote this article) scissors grinders are not a common sight or sound, but a few cicadas still have a common name referring to the scissor grinding days of yore. A few, but not all, are also Dusk Singers.

Neotibicen latifasciatus aka Coastal Scissor(s) Grinder Cicada. Found in FL, MD, NJ, NC, VA. Season: June – Fall. A day singer found along the coast.

N. latifasciatus Call*:

Neotibicen pruinosus pruinosus aka Scissor(s) Grinder. Found in AL, AR, CO, IL, IN, IA, KS, KY, LA, MI, MN, MS, MO, NE, OH, OK, SC, SD, TN, TX, VA, WV, WI. Season: June – September. Neotibicen pruinosus fulvus aka Pale Scissor(s) Grinder Cicada. Found in: KS, OK. Season: June – September. A Dusk Singer, very much like N. winnemanna but predominately west of the Appalachian mountains.

N. pruinosus Call*:

Neotibicen winnemanna aka Eastern Scissor(s) Grinder. Found in AL, DE, DC, GA, KY, LA, MD, MS, NC, NJ, PA, SC, TN, TX, VA, WV. Season: June – Fall. A Dusk Singer, very much like N. pruinosus but predominately east of the Appalachian mountains.

N. winnemanna Call*:

It’s worth mentioning two similar cicadas, that don’t bear the “Scissors Grinder” name, but either sound similar or hybridize with Scissor Grinders.

Neotibicen robinsonianus aka Robinson’s Annual Cicada or Robinson’s Cicada. This cicada’s call is similar to Scissor Grinders in rhythm, but it has a duller sound/lower pitch (IMHO). Maybe it should be called the “Dull Scissor Grinder” (that is a joke). Found: AL, AR, DC, FL, GA, IN, KS, MD, MS, MO, NC, OH, PA, TN, TX, VA. Season: June-Fall.

N. robinsonianus Call*:

Neotibicen linnei aka Linne’s Cicada sounds nothing like the Scissors Grinders, but it is known to hybridize with Scissor Grinders. Found: AL, AR, CT, DE, DC, FL, GA, IL, IN, IA, KS, KY, LA, ME, MD, MA, MI, MN, MS, MO, NE, NJ, NY, NC, OH, ON, PA, SC, TN, VT, VA, WV, WI. Season: June – fall.

You might hear a hybrid Scissors Grinder with a call that features part of an N. Linnei call!

A pure (non hybrid) N. linnei Call for reference*:

The five cicadas mentioned on this page are part of a group informally known as the Green Neotibicen. They are closely genetically related.

*Audio files are Copyright of InsectSingers.com. Season information gathered from BugGuide.net.

August 29, 2016

Neotibicen latifasciatus – the South Jersey Shore Screamer

Filed under: Elias Bonaros | Neotibicen — Tags: — Dan @ 9:05 pm

This is a Neotibicen latifasciatus (Davis, 1915) commonly known as the Coastal Scissor Grinder, locally known as a Yodeling Cedar Sucker in Florida and Beach Banshee in North Carolina 3:

Dorsal view of two latifasciatus males

See more photos.

The holotype — a single type specimen on which the description of a new species is based — for the cicada Neotibicen latifasciatus was gathered from Cold Spring, Cape May County1. I feel that N. latifasciatus needs a common name indicative of Cape May, New Jersey. Here are my ideas:

  1. Cape May Crooner
  2. Cape May Crier
  3. Cape May Car Alarm
  4. Shore Shrieker
  5. Woodbine Warbler
  6. South Jersey Shore Screamer

The last one is my favorite (changed it to South ;))

N. latifasciatus is a cicada found along the east coast of the United States, and is known for its preference for cedar trees. It can be found in New Jersey, Maryland, North Carolina, Virginia2, Florida and points in between3. Its affinity for cedar trees (plus its distinct call) makes it relatively easy to locate and capture — if you’re willing to get a little messy climbing through the thick & sticky branches of a cedar tree. A thin mist of sap from the cedar seems to coat the wings of these cicadas, and it’s worth mentioning that their wings are often torn and ragged, probably resulting from the thick cedar foliage.

When William T. Davis first described N. latifasciatus in 19154, he described it as a variety of Cicada pruinosa (now Neotibicen pruinosus pruinosus). This is understandable, since they sound very much alike, and look alike except for the the white bands on the sides of the latifasciatus, some other minor morphological differences, and habitats. pruinosus, latifasciatus, winnemanna, linnei, canicularis, and robinsonianus are collectively known as the Green [Neo]tibicen Species3 or simply “the Green Group”.They’re called Green because much of their heads, collars, pronotums and mesonotums are green in color.

On Saturday, August 20th, 2016, I met Elias Bonaros and Annette DeGiovine-Oliveira in Middle Township, Cape May County to search for latifasciatus. I arrived before they did and located a relatively quiet road lined with cedar trees, filled with screaming latifasciatus. From the outside cedars resemble twisting green fire; on the inside they’re a mess of tightly-packed, dirty branches — perfect for an insect to hide. The road and trees were surrounded by briny marshland, less than a mile from the Atlantic Ocean. Other than cicadas, there were an abundance of annoying greenhead flies (Tabanus nigrovittatus), and not annoying at all katydids. The temperature was in the mid 80s, the air was humid, the sun was brutal, and the flies thought I was delicious. In the 5 hours we spent photographing and gathering specimens, I drank a gallon of water. Elias handled cicada procurement duties, and Annette and I recorded the cicadas’ song and habitat.

Here’s a video summary of our adventure:

After a satisfying lunch, I went looking for other locations and found a very different but prime in-land location with taller cedar (Red and White varieties) in Woodbine Borough. There we found many exuvia, which we did not find at the other location, and heard not only latifasciatus, but also N. linnei, N. tibicen tibicen, N. canicularis, and N. auletes. Around 9pm, and almost 12 hours of cicada field-work, I called it quits. Elias and Annette stuck around and were able to observe molting latifasciatus.

The ventral side a male Neotibicen latifasciatus:
Neotibicen latifasciatus abdomen

This cicada was captured using the “clap” method of netting cicadas. This method involves two people using two nets, surrounding the cicada so it can’t find an escape path.

I would be remiss if I did not mention how delightful the people of Cape May County are. All the folks we encountered were pleasantly curious or encouraging about our cicada research activities. They also have “Custard” shops instead of Ice Cream shops.

Also check out Annette’s YouTube channel for video of the latifasciatus habitat and song.

1 Sanborn AF, Phillips PK. 2013. Biogeography of the Cicadas (Hemiptera: Cicadidae) of North America, North of Mexico. Diversity 2013, 5, 166-239.

2 Sanborn AF, Heath MS. 2012. The Cicadas (Hemipetera: Cicadoidea: Cicadidae) of North America North of Mexico. Entomological Society of America. 45.

3 BugGuide Species Neotibicen latifasciatus page.

4 Davis WT. 1915a. Notes on some cicadas from the eastern and central United States with a description of a new variety of Cicada pruinosa. Journal of the New York Entomological Society 23: 1—10. (see the North American Cicadas page)

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