Brinckiella aptera, Naskrecki, Piotr & Bazelet, Corinna S., 2009

Naskrecki, Piotr & Bazelet, Corinna S., 2009, A species radiation among South African flightless spring katydids (Orthoptera: Tettigoniidae: Phaneropterinae: Brinckiella Chopard), Zootaxa 2056, pp. 46-62 : 61-62

publication ID

https://doi.org/ 10.5281/zenodo.186707

DOI

https://doi.org/10.5281/zenodo.6223572

persistent identifier

https://treatment.plazi.org/id/03A487A1-FFE2-FFE9-FF46-0965DCB2FEC9

treatment provided by

Plazi

scientific name

Brinckiella aptera
status

sp. nov.

Brinckiella aptera n. sp.

( Figs. 1 View FIGURE 1 I–J; 2 O; 3I)

Type locality. Republic of South Africa: Western Cape, Bredasdorp Div. Pearly Beach (34°39'S, 19°28'60''E) ix.1959, coll. SAMC staff - male holotype ( SAMC)

Diagnostic description (male, female unknown). General characteristics as for the genus, diagnostic characters listed below. This species is unique in the complete aptery of adult males.

Thorax. Lateral lobe of pronotum about twice as long as high ( Fig. 1 View FIGURE 1 I); anterior margin of pronotum flat; broadly rounded; metazona flat, posterior edge of metazona straight ( Fig. 1 View FIGURE 1 J); apterous.

Legs. Legs extremely long and slender. Genicular lobes of front femur armed with single spines on both sides. Genicular lobes of mid femur armed with single spines on both sides. Genicular lobes of hind femur unarmed.

Abdomen. Tenth tergite unmodified; epiproct small and rounded, unmodified; paraprocts unmodified. Cercus short and stout, bent inwards halfway its length; straight when seen from side; apex tapered, with apical tooth ( Fig. 3 View FIGURE 3 I); phallus entirely membranous, without sclerotized elements. Subgenital plate elongate, narrowly trapezoidal, straight apically; styli cylindrical, more than 3 times as long as wide, parallel; separated by small gap ( Fig. 2 View FIGURE 2 O.)

Coloration. Coloration probably green in live individuals, faded brown in dry, pinned ones, antennae concolorous; antennal scapus without markings. Pronotum with dark and light stripes on upper edge of lateral lobe, continuous with those on thorax and abdomen.

Measurements (1 male). body: 11; pronotum: 2.1; hind femur: 15.5; front femur: 8.5; mid femur: 7.9 mm.

Material examined. Republic of South Africa: Western Cape, Bredasdorp Div. Pearly Beach, (34°39'S, 19°28'60''E), ix.1959, coll. SAMC staff - 1 male (holotype) ( SAMC); Sneeuwgat Valley, Tulbagh Div., (33°8'S, 19°10'E), x.1934, coll. SAMC staff - 1 male (paratype) ( SAMC).

Etymology. Named in reference to the complete lack of wings in the male of this species.

Remarks. This unusual species is the first example of a complete aptery in the males of the Phaneropterinae . Despite the complete lack of wings, the tympanal organs on the front tibia in these insects are developed normally. The lack of stridulatory organs in B. aptera raises the question of how the females find males during the breeding season, and whether an alternative form of communication (e.g., tremulation or pheromonal communication) might have evolved in this species.

SAMC

Iziko Museums of Cape Town

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