Theudoria (Ctenophorema) pyrrhocnemis surinam, Gorochov, 2018

Gorochov, A. V., 2018, Systematics of the American Katydids (Orthoptera: Tettigoniidae). Communication 8, Proceedings of the Zoological Institute of the Russian Academy of Sciences 322 (4), pp. 398-456 : 438-440

publication ID

https://doi.org/10.31610/trudyzin/2018.322.4.398

persistent identifier

https://treatment.plazi.org/id/AF3387E1-D534-FFF8-FCCB-FAB5FA91FB34

treatment provided by

Felipe

scientific name

Theudoria (Ctenophorema) pyrrhocnemis surinam
status

subsp. nov.

Theudoria (Ctenophorema) pyrrhocnemis surinam View in CoL subsp. nov.

(Figs 128, 206–211)

Etymology. This subspecies is named after its type locality.

Type material. Holotype – male, SURINAM: “Surinam ex coll. Fruhstorfer ”, “N 130-97” . Paratypes: 2 males, 6 females, same data as for holotype, but 2 females determined as “ Homotoicha laminata ” and 1 female – as “ Homotoicha n. spec. vic. laminata Br. .

Description. Male (holotype). General appearance very similar to that of nominotypical subspecies. Colouration ( Figs 206–209 View Figs 206–222 ) yellowish, but: head dorsum and pronotal disc light brown with a pair of almost whitish longitudinal stripes running from lateral parts of upper rostral tubercle to almost lateral edges of pronotal disc; each lateral pronotal lobe with reddish brown stripe along dorsal edge and with yellowish longitudinal stripe between previous stripe and pronotal disc; each tegmen with greenish tinge on most part of lateral field, greyish brown stripe along border between lateral and dorsal fields, and darkened membranes in cells of dorsal field (such membranes numerous in left tegmen and sparse in right one) and in cells of lateral field located along its anal edge; legs with greenish tinge on femora, reddish brown fore tibia as well as light brown middle and hind tibiae; abdomen with rose rather wide median (longitudinal) stripe as well as membranous and semimembranous areas between last tergite and bases of both epiproct and cerci. Head typical of this genus, with apices of rostral tubercles narrow and closely located (not projected before each other), and with face barely oblique; pronotum moderately narrow and slightly narrowing to head, with lateral lobes clearly delimited from disc (their shape as in Fig. 206 View Figs 206–222 ); tegmina rather narrow and long but slightly shorter than hind wings, with normal RS having two branches in distal half, and with stridulatory apparatus as in Figs 207 View Figs 206–222 ; last tergite slightly longer than previous abdominal tergites, with very short and wide semimembranous posteromedian lobe directed downwards and almost truncated posteriorly; epiproct more or less oval, practically unspecialized; each cercus with two long and rather thin branches (lateral branch directed more or less backwards, with barely thickened distal part and with apex as in Fig. 128; medial branch arcuate, curved medially, with apex almost acute; Fig. 208 View Figs 206–222 ); genital plate long, with distal half somewhat narrowed but having deep and narrow posteromedian notch which almost equal to half of this plate in length, and with moderately small but elongate styles ( Fig. 209 View Figs 206–222 ).

Variations. Some paratypes with hind femora completely light brown.

Female. Colouration and external structure of body as in males, but dorsal tegminal field with finely cellular venation and coloured as that of left tegmen in male; genital plate large (wide), laterally covering most part of ovipositor base, with slightly sinuate (almost straight) posterior edge of each lateral lobe of this plate, and with comparatively small and narrow notch between these lobes ( Figs 210, 211 View Figs 206–222 ); ovipositor as in Fig. 210 View Figs 206–222 .

Length (mm). Body: male 19.0–21.0, female 20.0–24.0; body with wings: male 35.0–38.0, female 39.0–43.0; pronotum: male 4.8–5.0, female 5.0–5.3; tegmina: male 26.0–28.0, female 28.0–30.0; hind femora: male 23.0–25.0, female 24.0–27.0; ovipositor 4.9–5.1.

Comparison. This subspecies is distinguished from nominotypical one by the lateral branch of male cercus distinctly thinner in subapical part. Also, this character probably distinguishes the new subspecies from Th. (C.) jahyrae and Th. (C.) precaria which may be synonyms of Th. (C.) p. pyrrhocnemis distributed in southern half of Brazil. From Th. (C.) fuscopunctata and Th. (C.) bivittata distributed in the same region and near it (also possible synonyms of Th. p. pyrrhocnemis ), the new subspecies differs in the female genital plate lacking distinct posterior notch on each lateral part in profile. From Th. (C.) laminata , Th. (C.) hexacercata , Th. (C.) balnearis and Th. (C.?) orlandoi , the new subspecies is clearly distinguished by the posteromedian notch of male genital plate deeper; additionally from the three first species, by the male cercal lateral branch not curved upwards and not gradually narrowing to the acute apex, and from Th. orlandoi , by the medial branch of male cercus distinctly longer; moreover from Th. laminata , Th. balnearis and Th. orlandoi, Th. p. surinam subsp. nov. differs in the female genital plate much larger and partly covering the lateral parts of ovipositor base (vs. located almost completely under this base).

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Orthoptera

Family

Tettigoniidae

Genus

Theudoria

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