Category: U.S.A.

Categories
Megatibicen Mexico Richard Newfrock Tacuini (Cryptotympanini) U.S.A.

The Curious Case of Cultriformis in California

Megatibicen cultriformis (Davis, 1915), aka the Grand Western Flood Plain Cicada, is large cicada found in the states Arizona and New Mexico in the U.S. and in Mexico. According to the Biogeography of the Cicadas (Hemiptera: Cicadidae) of North America, North of Mexico by Allen F. Sanborn and Polly K. Phillips, it is found in the Mexican Highland Section of the Basin and Range Province of the Sonoran Desert, and is associated with cottonwood and willow trees1.

Over the weekend, cicada collector Richard Newfrock emailed me some cicada photos for identification. Amongst those photos was what appears to be Megatibicen cultriformis labeled Escondido, Cal[iforia]. I asked Richard about the location, and sure enough, he said they were found in a pool in Escondido. I double-checked the species and location with top-tier cicada experts Jeffery Cole and David Marshall. From our conversation, I believe they agreed that the cicadas appeared to be M. cultriformis and that Escondido is far from its normal range (about 400 miles away).

Female (left), Male (right). Found floating in a pool.
Megatibicen cultriformis

So, how did these cicadas Megatibicen cultriformis end up in Escondido? More than likely, if they are truly M. cultriformis, they hitchhiked on a tree transported from Arizona to California — or as David Marshall said to me in an email, “it’s at least possible that cultriformis could have been introduced on the roots of saplings transplanted from Arizona”.

Does anyone in the Escondido area want to listen for these cicadas in the summer and report back to us if you hear them?

Listen to its song:

Source: ©Insect Singers

Scientific classification:
Family: Cicadidae
Subfamily: Cicadinae
Tribe: Cryptotympanini
SubTribe: Cryptotympanina
Genera: Megatibicen
Species: Megatibicen cultriformis (Davis, 1915)

William T Davis’s description from A New Cicada from Arizona2:

Resembles Cicada marginata Say [now called Megatibicen pronotalis walkeri Metcalf, 1955] in size, color, and markings. Head black with an oblong greenish yellow spot each side between the eyes and a small spot of the same color on the front just above the transverse rugae. Pronotum greenish yellow with a large, conspicuous black spot occupying the fore part of its central area. The hind margin of the pronotum (collar) is entirely unicolorous as in marginata. The mesonotum is black, with a pruinose band each side at the base of the wings; the elevated x is greenish yellow, and there are two conspicuous, irregularly formed (pipe-shaped) greenish yellow spots occupying its central portion. The tergum is black, each side broadly margined with pruinose, and the segments have their posterior margins yellowish. There is also an indication of a dorsal line of pruinose spots on the tergum, which in the type have been nearly worn off. Beneath the head is blackish, the remainder of the insect being greenish yellow and more or less pruinose. The costal margin of the fore wing is entirely greenish yellow, darkened beyond the middle, and the w-mark is inconspicuous. Both fore and hind wings are greenish-yellow at base, with the veins darkened beyond the middle.

Note that greens often fade to tannish colors after a cicada dies.

Trivia: In Latin, “cultr” means knife, and “form” means shape — cultriformis means knife-shaped. Davis named cultriformis because “uncus locks, which are s millimeters long in cultriformis, and when seen in profile are shaped like the blade of a pruning knife, hence the name.” The uncus is the male genitalia.

Resources:

Categories
Argentina Bolivia Brazil Colombia Costa Rica Ecuador Fidicinini Guatemala Guillaume Antoine Olivier Guyana Mexico Panama Paraguay Quesada Rhynchota U.S.A.

Quesada gigas (Olivier, 1790) aka Giant Cicada

Quesada gigas (Olivier, 1790) Is a cicada found in the United States (Texas), Argentina, Belize, Bolivia, Brazil, Colombia, Costa Rica, Ecuador, Guatemala, Guyana, Mexico, Panama, Paraguay, Peru, Tobago, Trinidad, and Venezuela. It is the largest cicada in these locations.

Quesada gigas from Brazil, Photo by Leonardo Milhomem
Quesada gigas from Brazil, Photo by Leonardo Milhomem.

See all Quesada gigas photos and information on cicadamania.com.

Song

Source: ©Insect Singers | Species: Q. gigas

Playlists contain multiple videos found on YouTube.

Name, Location and Description

Scientific classification:
Family: Cicadidae
Subfamily: Cicadinae
Tribe: Fidicinini
Genus: Quesada
Species: Quesada gigas (Olivier, 1790)

Quesada gigas (Olivier, 1790)
The image says Tympanoterpes gigas but its newest name is Quesada gigas.

Species description notes from Insect. Rhynchota.:

Stal treated this species as a synonym of T. grossa, Fabr. The type of the Fabrician species, however, is in the Banksian collection contained in the British Museum, and is very distinct, the opercula being large and rounded.

The figure given in the Encyclopedic Methodique is, like Stal’s, useless for any practical purpose. Among the habitats of this wide-ranging species is that given by Walker 2, ” West coast of America,” which, as before remarked in connexion with other species, seems clearly to refer to Central America. The forms inhabiting this region (of which a Guatemalan specimen is figured) appear to be somewhat smaller than more southern specimens, or do not exhibit the gigantic specimens which are frequently and commonly received from the southern portion of the Neotropical Region.

Mr. Gervase F. Mathew (Ent. Mo. Mag. xi. p. 175) gives some interesting details relating to this insect as observed at Tobago. As regards its powers of stridulation he writes of a ” tropical afternoon: ” — ” Suddenly, from right above, you hear one or two hoarse, monotonous cries something like the croak of a tree-frog, and, looking upwards, wonder what it can be. But wait a moment ; this is merely a signal ; for the next minute everywhere above and around you these croaks are repeated in rapid and increasing succession until they merge into a long shrill whistle almost exactly similar to the whistle of a first-rate locomotive ; this continues for nearly half a minute, and then abruptly terminates.” ” Presently similar cries will be heard in the far distance, as if in reply to those which have just died away overhead. The whistling pierces one’s ears to such a degree that its vibrations can be felt long after it has ceased.”

Mr. Mathew describes this species as frequenting trees growing in ravines where the soil is generally soft and damp, in which their larvae and pupae find no difficulty in burrowing. ” When the latter are full-grown and ready for their last transformation, they emerge from the ground and crawl about four or five feet up the trunk of a tree, when they firmly fix themselves to the bark by means of their powerfully hooked fore tibiae.” ” The flight of the mature Cicada is abrupt, rapid, and by no means graceful ; and it does not appear to have the power of controlling itself when on the wing ; for I have often seen it fly in an insane manner against the trunk of a tree, a branch, or any other object that might be in its line of flight; and when it has performed its journey without any accident, it alights abruptly and awkwardly. As a rule, however, it does not attempt to fly to any great distance at a time.”

Resources:

The Giant Cicada / Chicharra Grande page on the Texas Entomology websites is a very good resource, particularly in relation to the state of Texas.

References:

  1. The illustration comes from Biologia Centrali-Americana. Insecta. Rhynchota. Hemiptera-Homoptera. Vol. 1. By W. L. Distant F.E.S. and The Rev. Canon W. W. Fowler, F.L.S. (1881-1905). Read it on the Biodiversity Heritage Library website.
  2. Species name information comes from Allen Sanborn’s Catalogue of the Cicadoidea (Hemiptera: Auchenorrhyncha).
  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.
  7. 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

    8. Notes:

    • Some descriptions are based on aged specimens which have lost some or a lot of their color.
Categories
Audio, Sounds, Songs Cuba Diceroprocta Francis Walker Tacuini (Cryptotympanini) U.S.A.

Diceroprocta biconica (Walker, 1850)

Diceroprocta biconica (Walker, 1850) was formerly known as Rihana biconica. The Rihana genus no longer exists.

It is found in Cuba and Florida in the U.S.:


Source: ©Insect Singers

Scientific classification:
Family: Cicadidae
Subfamily: Cicadinae
Tribe: Cryptotympanini
SubTribe: Cryptotympanina
Genus: Diceroprocta
Species: Diceroprocta biconica (Walker, 1850)

Diceroprocta biconica (Walker, 1850)
The image says Rihana biconica, but the newest name of this cicada is Diceroprocta biconica.

For the fun of it, here is a genus description for Rihana:

Characters. — Flead distinctly longer than half the breadth between eyes, and including eyes wider than base of mesonotum ; face more or less prominent, its lateral margins in line with lateral margins of vertex; eyes oblique, longer than broad; pronotum a little narrowed behind eyes, about or almost as long as mesonotum in front of cruciform elevation ; abdomen not, or scarcely, longer than length between apex of face and base of cruciform elevation ; other characters generally as in Cicada.

Name, Location and Description

References:

  1. The illustration and genus description comes from the journal Genera Insectorum, and a specific article from 1913 by W. L. Distant titled Homoptera. Fam. Cicadidae, Subfam, Cicadinae. Read it on the Biodiversity Heritage Library website.
  2. Current species name verified using Allen Sanborn’s Catalogue of the Cicadoidea (Hemiptera: Auchenorrhyncha).
Categories
Fidicinini Genera Insectorum Mexico Pacarina U.S.A. William T. Davis

Pacarina puella Davis, 1923

Pacarina puella Davis, 1923 is a small cicada. About 2 centimeters, according to BugGuide.You can find this cicada in the several southern (United) States, Mexico, and Central America. It is commonly known as the Little Mesquite Cicada.

It’s also one of the cuter cicadas. See what I mean:
Pacarina puella photos by John Beard taken in Texas
Pacarina puella photos by John Beard taken in Texas

Photo credit: Pacarina by by John Beard in Atascosa County, TX

Listen to its song ((c) Insect Singers):

Scientific classification:
Family: Cicadidae
Sub Family: Cicadinae
Tribe: Fidicinini
Sub Tribe: Guyalnina
Genus: Pacarina
Species: Pacarina puella Davis, 1923

And its name has changed since 1914. It used to be known as Pacarina signifera (technically, its a synonym):

Pacarina puella Davis, 1923
The image says Pacarina signifera but the newest name of this cicada is Pacarina puella.

Pacarina genus description by W. L. Distant:

Characters. — Head (including eyes) broader than base of mesonotum ; eyes projecting beyond anterior angles of pronotum ; vertex at area of ocelli much longer than front ; pronotum with the posterior angles moderately lobately produced, its lateral margins oblique, slightly sinuate, its length shorter than that of mesonotum ; abdomen about as long as space between apex of head and base of cruciform elevation; tympanal coverings distinct but inwardly concavely narrowed and exposing the tympanal cavities; face convex, a little broader than the space between it and eyes; opercula about reaching base of abdomen, their lateral margins oblique, their posterior margins a little rounded; anterior femora armed with two strong spines beneath; rostrum about reaching the posterior coxae; tegmina and wings hyaline; apical areas eight.

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
Megatibicen Tacuini (Cryptotympanini) U.S.A.

Megatibicen resh aka the Resh Cicada

Megatibicen resh (formerly Neotibicen resh and Tibicen resh) is commonly known as the Resh Cicada because the markings on its back resemble the Hebrew symbol Resh “ר”. The Resh Cicada has been documented to be found in Arkansas, Kansas, Lousiana, Mississippi, Nebraska, Oklahoma, South Carolina, Tennesee, and Texas.

Most people will discover them by finding their exuvia (shed skins, “shells”) on trees, or by their striking calls at sunset. I first encountered this cicada in Dallas, Texas near Pioneer Plaza (cattle sculptures). First I found the exuvia on oak trees (I needed a 3′ stick added to my 8′ reach to knock them down), and then at sunset I heard their call (which I mistook for M. auletes (which is not in Texas)). Listen to their song.

It is one of the smaller Megatibicen — maybe only M. dealbatus is smaller. Compare sizes using this image by Kathy Hill. Its compound eyes are gray-beige, with a black “mask” between the eyes, and its simple eyes are pink. Its ventral side is white and caramel colored. Its dorsal side is dominated by a light green color, with black, brown and white — forming a symmetrical camouflage pattern — which helps to hide the cicada in its arboreal habitat. Recently molted, golden pruinose shimmers on its head, pronotum, mesonotum, and abdomen.

Megatibicen resh molting adult

During the molting process, up until the cicada’s body sclerotizes (hardens), the cicada’s body is leaf-green (camouflaged like a hanging leaf).

Megatibicen resh spreading wings 2

The exuvia of the Resh cicada is large and easy to spot, even high up in trees. Even though molted adults are closer in size to N. tibicen than M. auletes, the exuvia of M. resh is comparable to M. auletes, which is the largest cicada in North America.

Resh Auletes and Tibicen

More photos from this series: Megatibicen resh gallery.

Categories
Annette DeGiovine U.S.A.

Website highlight: Long Island Cicadas

Long Island Cicadas is a blog about cicadas created and maintained by artist & photographer Annette DeGiovine.

Annette is a fantastic photographer and citizen scientist.

Long Island Cicadas

Here’s a sample of the articles on the blog.

Categories
Papers and Documents Robert L. Sanders U.S.A.

A 3-Year Survey of Oklahoma’s 41 Cicadas

Cicada researcher Robert L. Sanders has written a paper documenting a 3-Year survey of Oklahoma cicadas. The paper is appropriately titled “A 3-Year Survey of Oklahoma Cicadas (Hemiptera: Cicadoidea: Cicadidae) with New State Records” and was published in Journal of the Kansas Entomological Society, 89(4):315-337. Access it via this link.

The number of cicadas identified living in Oklahoma has been raised to 41. The previous number, as documented in the works of Allen F. Sanborn and Polly K. Phillips, was 341.

Here’s the abstract of Robert’s paper:

ABSTRACT: Between September of 2013 and September of 2016 an intermittent survey of the cicada diversity and distribution in Oklahoma was conducted. The results of this survey are presented here as a current updated annotated checklist. Seven species in four genera are newly recorded as resident in Oklahoma: Diceroprocta texana (Davis, 1916), Megatibicen figuratus (Walker, 1858), Neotibicen davisi harnedi (Davis, 1918), Neotibicen linnei (Smith & Grossbeck, 1907), Neotibicen robinsonianus (Davis, 1922), Okanagana viridis Davis, 1918, and Pacarina shoemakeri Sanborn and Heath, 2012. This brings the total number of species inhabiting the state to 41. Discussed are seven additional species possibly occurring in the state and Oklahoma’s cicada diversity.

1 Sanborn Allen F. Phillips, Polly K. (2014). Biogeography of the Cicadas (Hemiptera: Cicadidae) of North America, North of Mexico. Diversity 2013, 5, 166-239; doi:10.3390/d5020166

Categories
Annual Megatibicen Neotibicen U.S.A.

The Dusk Singers

The Dusk Singers

Dusk is the time of day between sunset and night. Many species of Megatibicen & Neotibicen (formerly Tibicen) sing at this time. I’m not sure why they sing at this time — perhaps it helps them avoid audio competition with other singing insects, or perhaps it helps them avoid predators by calling at this specific time of the day.

If you find yourself outdoors in the eastern half of the U.S. after sunset and hear a cicada call, it is likely one of the following Megatibicen or Neotibicen species:

Megatibicen

Megatibicen are LARGE and LOUD cicadas.

Megatibicen auletes aka the Northern Dusk Singing Cicada. This cicada can be found in these states: AL, AR, CT, DE, DC, FL, GA, IL, IN, IA, KS, KY, LA, MD, MA, MI, MS, MO, NE, NJ, NY, NC, OH, OK, PA, SC, TN, TX, VA, WV, WI. Season: July to Fall.

M. auletes Call*:

Megatibicen figuratus aka the Fall Southeastern Dusk-singing Cicada. Found in: AL, AR, FL, GA, LA, MS, NC, SC, TN, TX, VA. Season: July to Fall.

M. figuratus Call*:

Megatibicen resh aka Resh Cicada aka Western Dusk Singing Cicada. Found in: AR, KS, LA, MS, NE, OK, SC, TN, TX. Season: July to Fall.

M. resh Call*:

Megatibicen resonans aka Southern Resonant/Great Pine Barrens Cicada aka Southern Dusk Singing Cicada. Found in AL, FL, GA, LA, MS, NC, SC, TN, TX, VA. Season: July to Fall.

M. resonans Call*:

Neotibicen

Medium-sized, green cicadas with calls that sound like the rhythmic grinding of a scissor on a sharpening wheel (not a common tool in the 21st century).

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.

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.

N. winnemanna Call*:

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

Categories
David Marshall Kathy Hill Neotibicen Papers and Documents U.S.A.

Neotibicen similaris apalachicola, a new cicada subspecies

A new subspecies of the Similar Dog-Day Cicada has been described in the paper A new Neotibicen cicada subspecies (Hemiptera: Cicadidae) from the southeastern USA forms hybrid zones with a widespread relative despite a divergent male calling song by David C. Marshall and Kathy B. R. Hill (Zootaxa, Vol 4272, No 4). The cicada is named Neotibicen similaris apalachicola.

This cicada lives in Florida, Georgia & Alabama, and hybridizes with the other Similar Dog-Day Cicada sub-speces, Neotibicen similaris similaris. The document is available on biotaxa.org.

A morphologically cryptic subspecies of Neotibicen similaris (Smith and Grossbeck) is described from forests of the Apalachicola region of the southeastern United States. Although the new form exhibits a highly distinctive male calling song, it hybridizes extensively where it meets populations of the nominate subspecies in parapatry, by which it is nearly surrounded. This is the first reported example of hybridization between North American nonperiodical cicadas. Acoustic and morphological characters are added to the original description of the nominate subspecies, and illustrations of complex hybrid song phenotypes are presented. The biogeography of N. similaris is discussed in light of historical changes in forest composition on the southeastern Coastal Plain.

You will find song samples and maps on the Insect Singers website.

I think this is an image of the new cicada:

Categories
Platypedia Platypediini U.S.A. William T. Davis

Platypedia affinis Davis, 1939

Platypedia affinis Davis, 1939.

Name, Location and Description

Classification:

Family: Cicadidae
Subfamily: Cicadettinae
Tribe: Platypediini
Subtribe: ?
Genera: Platypedia
Species: Platypedia affinis Davis, 1939

List of sources

  1. Full Binomial Names: ITIS.gov
  2. Common names: BugGuide.net; The Songs of Insects by Lang Elliott and Wil Herschberger; personal memory.
  3. Locations: Biogeography of the Cicadas (Hemiptera: Cicadidae) of North America, North of Mexico by Allen F. Sanborn and Polly K. Phillips.
  4. Descriptions, Colors: personal observations from specimens or photos from many sources. Descriptions are not perfect, but may be helpful.
  5. 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

Notes:

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