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October 24, 2018

Thopha sessiliba Distant, 1892

Filed under: Australia,Genera Insectorum,Thopha,Thophini,W. L. Distant — Tags: — Dan @ 8:20 pm

Thopha sessiliba Distant, 1892 is found in northern Austalia and is commonly known as the Northern Double Drummer. Like other members of the Thophini tribe, T. sessiliba has prominent sack-like tymbal covers, from which they get their common name “drummers”.

Scientific classification:
Family: Cicadidae
SubFamily: Cicadinae
Tribe: Thophini
Genera: Thopha
Species: Thopha sessiliba Distant, 1892

Thopha sessiliba Distant, 1892

Thopha genus description by W. L. Distant:

Characters. — Head short, broad, equal in width to apex of pronotum; eyes more or less pedunculated, prominent; ocelli four times more distant from eyes than from each other; apex of clavus acuminate; front destitute of a longitudinal sulcus; pronotum with the lateral margins almost truncate or slightly convex, widened forwardly; tegmina vitreous, basal area not twice longer than broad, interior ulnar area broadened towards apex; ulnar veins distant at base; wings vitreous, with six apical areas; opercula short, transverse; tympanal coverings very strongly developed and sac-like, projecting beyond the lateral abdominal margins in male.

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 13, 2018

Arunta perulata (Guérin-Méneville, 1831)

Arunta perulata (Guérin-Méneville, 1831). Found in Australia. Known as a White Drummer. Like other members of the tribe Thophini, like Thopha colorata (Orange Drummer) and Thopha saccata (Double Drummer), they have massive sac-like tymbal covers, which is why they’re called drummers.

Scientific classification:
Family: Cicadidae
SubFamily: Cicadinae
Tribe: Thophini
Genera: Arunta
Species: Arunta perulata (Guérin-Méneville, 1831)

White Drummer cicada (Arunta perulata)
Photo by David Emery.

Arunta perulata (Guérin-Méneville, 1831)

Arunta genus description by W. L. Distant:

Characters. — Head transverse, moderately truncate in front of eyes, between eyes much narrower than base of mesonotum ; rostrum reaching the posterior coxae; pronotum moderate broad, its breadth considerably less than length of both pro- and mesonotum (including the basal cruciform elevation); tympana very largely developed and sac-like, their apices obliquely extending beyond the lateral margins of the abdomen and to about half its length; opercula very small, not extending to base of metasternum, placed wide apart, and with their apical margins convex; anterior femora incrassated and spined ; posterior tibiae with a few lateral fine spines; tegmina and wings talc-like, tegmina with eight apical areas.

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).