Hemigryllus gorochovi, Cadena-Castañeda, 2025

Cadena-Castañeda, Oscar J., 2025, Studies on Neotropical crickets: On the Hemigryllus Saussure, 1877 taxonomic placement (Orthoptera: Grylloidea), with comments on Gryllidae classification, including new species and records, Zootaxa 5661 (2), pp. 151-177 : 158-163

publication ID	https://doi.org/10.11646/zootaxa.5661.2.1
publication LSID	lsid:zoobank.org:pub:0A0D9440-1FEA-41A6-B214-32C4A2497A25
DOI	https://doi.org/10.5281/zenodo.16604454
persistent identifier	https://treatment.plazi.org/id/03E68792-FFA8-1B54-B0FD-D6F6FAD06456
treatment provided by	Plazi
scientific name	Hemigryllus gorochovi
status	sp. nov.

Treatment

Hemigryllus gorochovi sp. nov.

( Figs. 1–4 View FIGURE 1 View FIGURE 2 View FIGURE 3 View FIGURE 4 )

Etymology. Dedicated to Andrej V. Gorochov, an orthopterist who described and studied this group of crickets and who contributes significantly to the knowledge of the taxonomy and systematics of Orthoptera and their allies.

Type material. Holotype. Male. COLOMBIA, Meta, Puerto López, Vda. Menegua . 290 m. 16 April 2022. J. Moreno. ( CAUD) . Paratypes. Male. Casanare, Orocué. 4°39'18.0"N 71°41'13.5"W. 10 April 2022. J. Moreno. Female. Meta, Puerto López , Vda. Menegua. 4°06'42.5"N 72°55'06.0"W. 290 m. 16April 2022. J. Moreno. ( CAUD). GoogleMaps GoogleMaps 6 females and 1 male. Meta, Puerto López, Vda. Menegua. 280 m. 12 April 1984. Restrepo R. 1 male. Same data as previous specimens but with different dates and collector, 290 m. 15 April 1984. M.M. Ferguson. 1 female. Casanare, 4 May 1974. O. Guillot ( ICN) .

Description. In addition to the characters of the genus: Male. Medium-size (11–12 mm.) ( Fig. 1 View FIGURE 1 ). Coloration. Body predominantly ochre ( Fig. 1 View FIGURE 1 ); cephalic capsule with brown longitudinal stripes on the vertex ( Figs. 2A–C View FIGURE 2 )), frons with two brown stripes descending from the fastigium to the level of the lower margin of the antennal sockets, ending in a round spot ( Fig. 2A View FIGURE 2 ); in lateral view, with postocular stripe; eyes black and ocelli pale yellow ( Fig. 2B View FIGURE 2 ); rest of head, including mandibles and palpi ochre ( Figs. 2A–B View FIGURE 2 ). Pronotal disc with two transverse light-yellow stripes, and within these finely outlined in brown; midline of pronotal disc brown, rest of pronotal disc with an ochre-grey background, with abundant small brown spots ( Fig. 2C View FIGURE 2 ). Lateral lobe of pronotum ochre, with the upper edge with a conspicuous brown stripe running from the anterior to the posterior edge ( Fig. 2B View FIGURE 2 ). Forelegs ochre, with only a small brown stripe on dorsal margin near the apex tibia ( Fig. 2D View FIGURE 2 ); tarsi ventrally dark ochreous, tibial spurs ochre with black apex ( Fig. 2E View FIGURE 2 ); middle femur with a brown stripe on dorsal margin near apex, middle tibia with two stripes over first basal third; hind femur with chevrons outlined in brown, also with spots covering dorsal edge ( Fig. 1A View FIGURE 1 ); hind tibia with a stripe between first pair of spurs and base of tibia, all spurs with basal and distal edges dark brown ( Figs. 2F–G View FIGURE 2 ). Tegmina pale yellowish brown, veins in the dorsal field yellowish ( Fig. 2H View FIGURE 2 ), and those in the lateral field light brown ( Fig. 2I View FIGURE 2 ). Sternum light ochre. Abdomen ventrally ochre, the anterior two-thirds of the tergites dark brown, and the posterior third of the tergite light ochre. Head round, of medium size compared to the body, smooth, and shiny, with only a few scattered hairs and located mainly on the antennae ( Figs. 2A–C View FIGURE 2 ); lateral ocelli circular ( Fig. 2B View FIGURE 2 ), central ocellus half the size compared to the lateral ocelli, ovoid, three times wider than high ( Fig. 2B View FIGURE 2 ). Legs. Coxae well-developed, rectangular-shaped, laterally compressed, margins rounded, dorsal inner margin unarmed. Fore tibia with a conspicuous tympanum only on inner side, occupying the first basal third of the tibia ( Fig. 2D View FIGURE 2 ). Middle tibia with two apical spurs on the inner margin and two on the outer margin. Hind tibia with outer dorsal and medial spurs of similar length, the ventral spur short, being one-fifth the length of the other two spurs ( Fig. 2F View FIGURE 2 ); inner dorsal and ventral apical spurs of similar length, the median spur longer than the other two ( Fig. 2G View FIGURE 2 ). Hind basitarsus serrulated with seven spines on the outer dorsal margin ( Fig. 2F View FIGURE 2 ); inner margin with one preapical spine; apex with a spur on each side, the inner one being twice as long as the inner one ( Fig. 2G View FIGURE 2 ). Wings surpass the abdominal apex. Space between the AA vein and PCuP without accessory veins. Harp with four veins running through it and mirror without a dividing vein ( Fig. 2H View FIGURE 2 ). Lateral field with well-developed lanceolate cell, three C and six Sc veins ( Fig. 2I View FIGURE 2 ). Abdomen. Last segments unmodified. Epiproct covered by many hairs, and with a mid-grove from the base to apex. Cerci almost as long as the hind tibiae, covered by abundant medium-sized hairs. Subgenital plate rectangular, longer than wide, posterior margin rounded. Male genitalia. Pseudepiphallus triangular; ventral margins of pseudepiphallus slightly undulated, almost straight, separated, and armed with small denticulations ( Fig. 3A View FIGURE 3 ); inner surface of median lobe covered with abundant hairs ( Fig. 3A, D View FIGURE 3 ). Median lobe in dorsal view with a deep, narrow central incision ( Fig. 2B View FIGURE 2 ). In lateral view, the median lobe curves progressively upwards ( Fig. 3C View FIGURE 3 ). Pseudepiphallic parameres with the base quadrangular, moderately flattened laterally ( Fig. 3A View FIGURE 3 ), posterior process curving upwards and to outer margin ( Fig. 3D View FIGURE 3 ). Ectophallic fold of similar length to the pseudepiphallic parameres, lanceolate, and with rounded posterior edge ( Fig. 3A View FIGURE 3 ).

Female. Similar to the male in shape, coloration, and size ( Fig. 4A View FIGURE 4 ), differing by the following characteristics: Tegmina with a blurred greyish ochre background, with two brown transverse stripes located in the medial section and before the apex; venation of the tegmina reticulate ( Fig. 4B View FIGURE 4 ); subgenital plate short, wider than long, with the posterior margin concave ( Fig. 4C View FIGURE 4 ); ovipositor poorly protruding from the subgenital plate, with thin and pointed valves ( Fig. 4C–E View FIGURE 4 ).

Measurements (in mm.) male / female: LB: 11.0–12.0 / 11.5–12.5; Pr: 1.5–2.0 / 2.0–2.5; Teg: 7.0–8.0 / 8.5–9.5; HF: 7.5–8.0 / 8.5–9.0; HT: 4.0–5 / 4.0–5.0.

Comparision. H. gorochovi sp. nov. is related to the species of the genus that do not have the mirror of the tegmina divided by any vein. Among these, the most similar species is H. woronovi , as both species share a rather short apical area and a well-developed lanceolate cell in the tegmina. Additionally, the male genitalia have a short pseudepiphallus and comparatively large pseudepiphallic parameres. These characteristics distinguish both species from H. sharovi and H. ankeri sp. nov.

H. gorochovi sp. nov. and H. woronovi differ in the following characteristics: in H. woronovi , the harp has five veins crossing it, whereas H. gorochovi sp. nov. has only four. The ventral margins of the pseudepiphallus to H. woronovi are distinctly undulated and close together, with a smooth inner surface on the median lobe. In contrast, H. gorochovi sp. nov. has slightly undulated, almost straight, and separated ventral margins, with an inner surface of the median lobe covered by abundant hairs. Another distinguishing character between the two species is the structure of the pseudepiphallic parameres: to H. gorochovi sp. nov., the posterior process curves upwards and toward the outer side. In contrast, in H. woronovi , the posterior process is nearly straight and cylindrical.