Cicada Mania

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

January 11, 2019

Quesada gigas (Olivier, 1790)

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.

Visit this page to listen to their song.

Quesada gigas was formerly known as Tympanoterpes gigas.

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

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

Quesada gigas
Photo by Leonardo Milhomem.

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.”

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).

November 1, 2018

Orialella boliviana (Distant, 1904)

Orialella boliviana (Distant, 1904) was formerly known as Oria boliviana. Yes, its name has changed since 1913. The genus Oria still exists.

It is found in Bolivia and Brazil.

Scientific classification:
Family: Cicadidae
SubFamily: Cicadinae
Tribe: Cryptotympanini
SubTribe: Cryptotympanina
Genus: Orialella
Species: Orialella boliviana (Distant, 1904)

Orialella boliviana (Distant, 1904)
The image says Oria boliviana, but the newest name of this cicada is Orialella boliviana.

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).

October 19, 2018

Pachypsaltria cinctomaculata (Stål, 1854)

Pachypsaltria cinctomaculata (Stål, 1854) is found in Columbia, Bolivia, Ecuador, and Venuezela.

Scientific classification:
Family: Cicadidae
SubFamily: Cicadinae
Tribe: Cicadatrini
Genus: Pachypsaltria
Species: Pachypsaltria cinctomaculata (Stål, 1854)

Pachypsaltria cinctomaculata (Stål, 1854)

Pachypsaltria genus description by W. L. Distant:

Characters. — Head including eyes a little more than half the width of base of mesonotum, the front subconically produced, about as long as vertex, head obliquely depressed, eyes oblique, slightly passing the anterior pronotal angles; face moderately globose, not longitudinally sulcate; rostrum passing the posterior coxas; pronotum shorter than mesonotum, its posterior margin nearly twice as broad as anterior margin, the lateral margins dentately sinuate; mesonotum shorter than head and pronotum together, convex; abdomen short, about as long as head and pronotum together; tympanal orifices inwardly exposed; opercula short, broad, scarcely extending beyond base of abdomen: body pilose, marginally longly so; anterior femora not spined beneath; tegmina more than twice longer than broad, apical areas eight; wings with six apical areas.

Pachy (Greek) means thick, and psalt comes from “psalter” (Greek), which means harp player. Pachypsaltria = thick harp player.

References:

  1. The illustration and description 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 verification comes from Allen Sanborn’s Catalogue of the Cicadoidea (Hemiptera: Auchenorrhyncha).