Neoconocephalus karollenkoi Piza 1983
Creators: name: Antunes, André Fonseca
name: Souza-Dias, Pedro G. B.
name: Takiya, Daniela Maeda
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Orthoptera
Tettigoniidae
Neoconocephalus
Neoconocephalus karollenkoi

description: Neoconocephalus karollenkoi Piza, 1983
(Figs. 14, 17)
Neoconocephalus karollenkoi Piza, 1983. Piza Jr. (1983): 112 [Description]; Otte (1997): 59 [Catalog]; Chamorro-Rengifo & Braun (2010): 43 [Catalog].
Type locality. Serra do Navio, Amapá, Brazil.
Diagnosis. Robust body, being the largest neotropical species (Fig. 14A, B); head conical in frontal view (Fig. 14E); fastigium of vertex trapezoidal in frontal view, three and half times longer than scapus length, base three times wider than scapus width (Fig. 14E); lateral lobe of pronotum as long as wide (Fig. 14C); and wing apex rounded (Fig. 14A, B).
Redescription. Head: Conical in frontal view (Fig. 14E); fastigium of vertex trapezoidal in frontal view, three and a half times longer than scapus length, base three times wider than scapus width, tooth weakly projected at basal portion of fastigium (Fig. 14C, D, E); fastigium of frons little projected, rounded (Fig. 14E). Thorax: Pronotum anterior margin almost straight and posterior margin almost convex (Figs. 14A, D); lateral lobe as long as wide, anterior margin of lateral lobe almost straight, followed by a smooth curve with lower margin almost straight, margin of humeral sinus rounded, invagination of humeral sinus concave (Figs. 14C). Wings: Tegmen with basal region slightly larger than apical region (Figs. 14B). Legs: Foreleg femur with two ventral spines, genicular lobe triangular and little developed, tympanum with three distinct regions: proximal one circular and closed, median one with a pair of open longitudinal slits, and apical one with a small open slit, tibia with six pairs of ventral spines; midleg femur with four ventral spines, genicular lobe triangular with inner side with acute apex and outer side with rounded apex, tibia with six pairs of ventral spines; hindleg femur with three spines, tibia dorsally with 20 inner spines and 22 outer spines, ventrally with seven pairs of spines. Color: Type specimen mostly brownish yellow, some parts of tegmen green; black on ventral surface of tarsi and ventral margin of the fastigium of vertex.
Description of female. Subgenital plate: Posterior margin concave with two triangular projections (Figs. 14F). Ovipositor: extending beyond tegmen apex (Figs. 14B).
Measurements: Female holotype: BdL 34.4(36.0); FL 3.6(3.5); PdL 7.7(8.0); TegL 58.4(48.0); FlegL 8.1; HlegL 26.4(25.0); OvL 39.1(37.0). Females (n=2): BdL 33.1–34.7; FL 3.3–3.5; PdL 7.4–8.0; TegL 55.4–57.3; FlegL 7.9–8.1; HlegL 26.0–27.4; OvL 37.8–40.2.
Distribution. Brazil: Amapá and Pará [new record] states.
Taxonomic notes. This species is most similar with N. colorificus (Walker, 1869), N. nigromaculatus (Redtenbacher, 1891), and N. truncatirostris (Redtenbacher, 1891). However, N. karollenkoi can be distinguished from N. colorificus by fastigium of vertex thicker and straight (Fig. 14C, D, E) (thinner and slightly curved apex in N. colorificus) and from N. truncatirostris and N. nigromaculatus by tooth at fastigium base weakly projected (Fig. 14C) (developed and downcurved in N. truncatirostris and N. nigromaculatus).
Type material. Neoconocephalus karollenkoi: Female holotype “Serra do Navio; Territ. do Amapá; Brasil; X.1957; K. Lenko leg.” [MELQ].
Additional material. Females: Two females “ BRASIL, PA, Belterra, Fazenda Treviso; 3°8’56.7” S / 54°50’25,2”W; 01–11.XII.2018; Souza-Dias, Monné equipe legs.” [MNRJ-ENT6-32464, MNRJ-ENT6-32465].
description: Published as part of Antunes, André Fonseca, Souza-Dias, Pedro G. B. & Takiya, Daniela Maeda, 2025, Comments on Neoconocephalus Karny, 1907 (Orthoptera, Tettigoniidae, Conocephalinae) species described by Salvador de Toledo Piza Jr.: The first contribution to the knowledge of South American species, pp. 363-393 in Zootaxa 5584 (3) on pages 385-386, DOI: 10.11646/zootaxa.5584.3.4, http://zenodo.org/record/14853407