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March 31, 2020

Megatibicen dealbatus (Davis, 1915) aka Plains Cicada

Filed under: Megatibicen | Tacuini (Cryptotympanini) | United States | William T. Davis — Tags: — Dan @ 7:04 pm

Megatibicen dealbatus (Davis, 1915) aka Plains Cicada.

Neotibicen dealbatus from Bill Reynolds collection
Megatibicen dealbatus from Bill Reynolds collection. All M. dealbatus images and information on this website.

Song

Source: ©Insect Singers

Video Playlist

Playlists contain multiple videos found on YouTube.

Name, Location and Description

A description by Wm. T. Davis.

The description comes from Wm. T. Davis’ document A NEW VARIETY OF CICADA RESEMBLING C. DORSATA. from September, 2015, published in the Journal of the New York Entomological Society. Vol. 23: 161-164.

Markings resembling those of C. dorsata [now M. dorsatus], but marginata var. dealbata is more green in color and has less black about the central area of the pronotum. The mesonotum is marked as in dorsata but is more pruinose ; the turgum has a dorsal line of white spots as in dorsata, but the sides are broadly pruinose and the posterior margin of each segment is narrowly edged with greenish yellow. Beneath both insects may be of the same color, though dorsata is usually much darker. The opercula are about as broad as long and broadly rounded at the tips. The fore wings in dorsata are oval in shape with the inner side (radius) of the costal margin blackish ; the veins are heavy and thickened, and the W-mark is prominent, whereas in luarginata var. dealbata the fore wings are more acuminate in form, the costal margin is green, darkened beyond the middle of the wing and the W-mark is not conspicuous or is wanting. One of the greatest differences between the two insects is in the genitalia. The uncus in dorsata viewed at full face is narrow and the piece below into which it locks is broadly notched with the extremities rounded. In var. dealbata the uncus is more nearly triangular in shape and the lower piece is narrowly notched with the extremities much produced. The male type of var. dealbata is figured.

Length of body 35 mm. ; length of fore wing 46 mm. ; expanse of wings 105 mm.

Classification:

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

List of sources

  1. Davis, W.T. A NEW VARIETY OF CICADA RESEMBLING C. DORSATA. 1915. The Journal of the New York Entomological Society. 23:161-164. Link to the paper.
  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.

Megatibicen cultriformis (Davis, 1915) aka Grand Western Flood Plain Cicada

Megatibicen cultriformis (Davis, 1915) aka the Grand Western Flood Plain Cicada.

Megatibicen cultriformis
Photo by Richard Newfrock.Other cultriformis info and images on this website.

Listen to its song:

Source: ©Insect Singers

Name, Location and Description

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 Arizona:

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.

List of sources

  1. Davis, W.T. A NEW CICADA FROM ARIZONA.1915. Journal of The New York Entomological Society. v23:239-241.
  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.

March 24, 2020

Neotibicen superbus, Megatibicen dorsatus, Megatibicen resh

Left to Right: Neotibicen superbus, Megatibicen dorsatus, Megatibicen dorsatus, Megatibicen resh from the collection of Bill Reynolds.

N. superbus, N. dorsatus, N. resh from the collection of Bill Reynolds

Megatibicen grossus formerly Megatibicen auletes photos

Megatibicen auletes from Bill Reynolds’ collection. A lot of cicadas! People send Bill cicadas from all over the U.S., because he’s a renowned cicada expert, and his collection grows and grows. Lucky guy.

Neotibicen auletes from Bill Reynolds collection

Neotibicen auletes from Bill Reynolds collection

* Note as of 2023 the name of this cicada has changed to Megatibicen grossus. You can also call it a Northern Dusk-Signing Cicada.

Megatibicen dealbatus

Filed under: Bill Reynolds | Megatibicen | Tacuini (Cryptotympanini) | United States — Tags: — Dan @ 9:07 pm

Megatibicen dealbatus from Bill Reynolds’ collection.

Neotibicen dealbatus from Bill Reynolds collection

Megatibicen dorsatus

Filed under: Bill Reynolds | Megatibicen | Tacuini (Cryptotympanini) | United States — Tags: — Dan @ 9:04 pm

Megatibicen dorsatus from Bill Reynolds’ collection.

Neotibicen dorsatus from Bill Reynolds collection

Neotibicen lyricen

Neotibicen lyricen from Bill Reynolds’ collection.

Top row is Neotibicen lyricen lyricen, and Bottom row is Neotibicen lyricen engelhardi.

Neotibicen lyricen from Bill Reynolds collection

Megatibicen pronotalis

Filed under: Bill Reynolds | Neotibicen | Tacuini (Cryptotympanini) | 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

Megatibicen resh

Filed under: Bill Reynolds | Neotibicen | Tacuini (Cryptotympanini) | United States — Tags: — Dan @ 8:54 pm

Megatibicen resh from Bill Reynolds’ collection.

Neotibicen resh from Bill Reynolds collection

Neotibicen superbus

Filed under: Bill Reynolds | Neotibicen | Tacuini (Cryptotympanini) | United States — Tags: — Dan @ 8:52 pm

Neotibicen superbus from Bill Reynolds’ collection.

Neotibicen superbus from Bill Reynolds collection

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