Gryllotalpella mendesi Cadena-Castaneda 2022, n. sp.
Creators: name: Cadena-Castañeda, Oscar J.
name: Rodríguez, Diana Marcela Trujillo
name: Quintana-Arias, Ronald Fernando
name: Ariza, Jeison Eduardo García
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Orthoptera
Gryllotalpidae
Gryllotalpella
Gryllotalpella mendesi

description: Gryllotalpella mendesi Cadena-Castañeda n. sp.
http://lsid.speciesfile.org/urn:lsid: Orthoptera.speciesfile.org:TaxonName:517988
(Figures 1 and 2)
Type material. Holotype. Female. BRAZIL, Amazonas, Manaus, Reserva Adolpho Ducke, 02°55’48” S, 59°58’30” W. 02.V.2014. A.M. Silva-Neto col. (INPA).
Paratypes. 1 female. BRAZIL, Amazonas, Manaus, Reserva Adolpho Ducke, Base. 02°55’46.3” S, 59°58’29.3” W. 22–24. V.2015. A. Régo col. 1 female, Amazonas, Novo Airão, 02°43’58.4”S, 60°44’33.5”W, 19. VI.2014, D. Nogueira col. (CAUD). 1 female, Amazonas, Manaus, Bairro Nova Esperança, 03°08’42.55”S, 60°05’93.88”W, 11.VI.2015, D.M. V. Pereira col. 1 female, Manaus, AM-010- km 50 ramal Vó Leuda, 14–16.VI.2013, F.F. Xavier F, P. Grossi & D.M.M. Mendes col. 1 female, Manaus, INPA, Campus I, 03°05’41.2”S, 59°59.22’2”W, 07. VI.2014, S.S. Azevedo col. (INPA).
Etymology. This species is dedicated to Diego Matheus de Mello Mendes, a dear friend of the first author, in recognition of his significant contributions to the Orthoptera of Brazil, especially in the Amazon region of such a wonderful country.
Description. In addition to the characters of the genus: Female. Medium to large-sized compared to the other species of the genus (Fig. 1). Body predominantly dark brown, forelegs yellowish-brown, dactyls black with ocher base (Figs. 1A, 2A), tympanum whitish (Fig. 2B). Mid-legs yellowish, hind legs with faded brown spots on an ocher background (Fig. 1B). Tegmina and hindwings yellowish-white, with yellowish-brown veins (Fig. 2D). Head slender with mouthparts ending in a conical shape when closed and covered by clipeus and labrum. Ovoid ocelli, medium size, greatest diameter 0.20–0.21 mm.; interocellar distance 1.5 times the maximum width of one of the ocelli. Ocellar-ocular distance less than one ocellar length; interocular distance slightly greater than the length of compound eyes (Fig. 2A). Thorax. Pronotum elongated oval, almost twice as long as wide (Fig. 1A). Legs. Forefemur 1.8 times longer than wide. Process of fore femur almost as long as wide, apex rounded (Figs. 2B,C). Tympanum ovoid and elongated occupying 80% of the tibia base (Fig. 2B). All dactyls pointed, the longest and most prominent being the mobile dactyls, with similar length; immobile dactyls of the tibia shorter than the articulated dactyls, the smallest being the ventral one (Fig. 2B). Tarsal dactyl with rounded apex, the proximal or ventral dactyl is the longest, with the ventral margin uniformly curved; middle or dorsal dactyl as long as a quarter of the length of the ventral dactyl, with slightly wavy posterior edge; last tarsomere not modified, reduced, cylindrical and with two small distal claws (Fig. 2C). Wings. Tegmina covering up to the second tergite, vein A2 not forked, anal 1 and 2 regions with numerous cross-veins, anal region 1 with three or four cross-veins; first cubital area with 2 or 3 crossveins (Fig. 2D). Hind wings surpass the length of the abdomen (Fig. 1). Abdomen. Edges of the dorsal groove of the last tergites with conspicuous setae, reddish and turning inwards. Epiproct triangular, wider than long. Subgenital plate wider than long and with a rounded edge.
Male. Unknown.
Measurements (in mm). Tl: 24–29, Ol: 0.20–0.21, Id: 0.30–0.32, Ood: 0.12–0.15, Pl: 4–7, Pw 4.5–6: Pf: 0.9, Teg: 8–9, Hf: 4.5–5, Ht: 3–3.5.
Comparison. G. rehni is the closest known species to the new species. The new species differs from G. rehni by a more elongated pronotum, ovoid ocelli, pointed dactyls, and tegminal venation. In contrast, G. rehni has circular ocelli; moderately elongate pronotum; dactyls with the apex not sharp, and tympanum occupies 90% of the tibia base. Anal region 1 with five or six cross-veins; first cubital area with four cross-veins vs. anal region 1 with three or four cross-veins; first cubital area with 2 or 3 cross-veins to the new species.
description: Published as part of Cadena-Castañeda, Oscar J., Rodríguez, Diana Marcela Trujillo, Quintana-Arias, Ronald Fernando & Ariza, Jeison Eduardo García, 2022, Studies on Neotropical crickets: A new Gryllotalpella species (Orthoptera: Gryllotalpidae) from Brazilian Amazon, pp. 483-489 in Zootaxa 5124 (4) on pages 485-488, DOI: 10.11646/zootaxa.5124.4.5, http://zenodo.org/record/6413708