Hebardidora harroweri (Hebard, 1924), 2025

Cadena-Castañeda, Oscar J., Quintana-Arias, Ronald Fernando, Infante, Ivette Coque, Silva, Daniela Santos Martins & Tavares, Gustavo Costa, 2025, Studies on pygmy grasshoppers: On the current Metrodorinae sensu lato classification (Orthoptera: Tetrigidae) with emphasis on American and Malagasy taxa, Zootaxa 5597 (1), pp. 1-265 : 55-59

Hebardidora harroweri (Hebard, 1924) , comb. nov.

( Figs. 31–34 , 35A, B , Map 4)

Platytettix harroweri Hebard, 1924: 81 . Holotype: female. PANAMA, Colón: Gatún. Depository: ANSP.

Metrodora harroweri : Günther, 1939: 297.

Material examined. 2 Males. COSTA RICA, Puntarenas, District of Golfito, Guaycará, La Gamba Biological Station ; 8°42’2.49”N, 83°12’7.79”W; 80 m; IV. 2018; F. Etl. ( CAUD) (Map 4) .

Description. Male (hitherto unknown). In addition to the characters of the genus: Tiny-size (5.0– 5.2 mm) ( Figs. 32A, B , 33 ). Body robust, granular, and moderately rugose ( Figs. 32 , 33 ). Coloration. Body dark brown ( Figs. 32A, B ); ocelli white ( Fig. 34A ); median pronotal carina with alternating ocher and dark brown spots along the entire edge of the hump ( Figs. 34 B, C ); fore and middle tibiae ocher, with greyish-brown stripes ( Figs. 34B, D ); hind tibia with basal half brown and an ocher ring near the base, distal half ocher; tarsomeres ocher with posterior edge brown ( Fig. 33A ). Head taller than wide, eyes occupying a quarter of the cephalic capsule ( Figs. 32C , 34A ), medial carina protruding upward in the middle of the eyes, forming a prolongation, widened in lateral view and with a rounded edge ( Fig. 34B ); lateral carinae moderately elevated, slightly protruding beside the eyes in frontal view ( Fig. 34A ), dorsal margin almost straight, connecting with the base of the medial carina ( Fig. 34C ); scutellum wide; fascial carinae diverging and straight in the basal section, then noticeably curving, outlining the scutellum and giving it a rounded shape; lateral ocelli located near the expansion of the frontal costa; medial ocellus situated in the middle of the distal section of the fascial carinae ( Figs. 34A ). Thorax. Anterior margin of the pronotum moderately projected over the head ( Figs.33B , 34C ); prozonal carinae developed ( Fig. 34C ); pronotal apex rounded ( Figs. 32B , 33B ). Hump rising in the anterior half of the pronotum, with the dorsal margin (median carina) slightly curved for most of its length, then curving downwards rapidly, progressively descending until reaching the pronotal apex in lateral view ( Figs. 33A , 34B ). Lateral lobes square-shaped, with a rounded lower margin in dorsal view ( Figs. 32B , 33B , 34C ). Legs. Fore and mid femora with almost straight dorsal margin, ventral margin with three medium-sized prolongations ( Fig. 34B ); fore tibia armed with small spinules on the distal third of the ventral margins; mid tibia unarmed ( Fig. 34D ); hind femur robust ( Fig. 33A ), median external area with two small lappets ( Fig. 33B ), antegenicular and genicular tooth well-developed ( Fig. 33A ); hind tibia armed with six small spines on each dorsal margin.Abdomen unmodified. Cerci conical and short, penultimate sternite conspicuous; subgenital plate triangular shaped in ventral view.

Remarks. Unfortunately, the pallial plates and epiproct of the studied males could not be examined as they are entirely covered, and attempting to observe them could damage the specimens. Additionally, the antennae are missing from the available specimens.

This species was originally described based on a female specimen from Gatun, Canal Zone ( Hebard, 1924a) ( Fig. 31 ), and an additional male from Barro Colorado Island ( Panama) was selected posteriorly as an allotype ( Hebard, 1933) but was not described ( Fig. 32 ). The specimens studied here are the first record of the species for Costa Rica ( Figs. 33 , 34 ). The males exhibit a similar morphology to the females, differing only in ambisexual characters. Furthermore, the males are morphologically similar to the male from Panama recorded by Kasalo et al. (2023b), and another Panamanian male recorded on iNaturalist. (https://www.inaturalist.org/observations/152111747), identified by Kasalo in 2023 ( Fig. 40B ).

Measurements (in mm). CFP: 5.0–5.2. PL: 4.5–4.8. PLB: 2.5–2.7. FF: 1.0–1.2. FL: 1.5–1.7. MFL: 1.4–1.5. MTL: 1.4–1.6. HL: 2.5–3.0. HW: 1.0–1.2. HTL: 2.0–2.3.

MAP 4. Distribution of Mesoamerican species. Tylotettix , Hebardidora gen. nov., Chiriquia , Otumba and Platythorus .

Figures

FIGURE 31. Hebardidora harroweri (Hebard, 1924) comb. nov. Female holotype. A–B. Habitus in lateral views. C. Frons. D. Labels.

FIGURE 32. Hebardidora harroweri (Hebard, 1924) comb. nov. Male studied by Hebard (1933), treated as a paratype. A. Habitus lateral and, B. Dorsal views. C. Frons. D. Labels. Photos: J. Tumbrinck.

FIGURE 33. Hebardidora harroweri (Hebard, 1924) comb. nov. Male from Costa Rica, habitus A. Lateral and, B. Dorsal views.

FIGURE 34. Hebardidora harroweri (Hebard, 1924) comb. nov. Male. A. Frons. B. Head and thorax in lateral and, C. Dorsal views. D. Mid femur.

FIGURE 35. Hebardidora species (females). A–B. H. harroweri (Hebard, 1924) comb. nov. A. Posterior margin of lateral lobe. B. Pronotum, lateral outline. C–D. H. panamae (Hebard, 1924) comb. nov. C. Posterior margin of the lateral lobe. D. Pronotum, lateral outline. E–F. H. kasaloi sp. nov. E. Posterior margin of the lateral lobe. F. Pronotum, lateral outline.

FIGURE 40. A. Hancockiella armata Cadena-Castañeda & Cardona, 2015 from Loreto, close to Nauta, Peru. Photo: Jonghyun Park, clurarit. https://www.inaturalist.org/observations/64200859. B. Hebardidora harroweri (Hebard, 1924) comb. nov. from Gamboa, Panama. Photo: Ernst Klimsa. https://www.inaturalist.org/observations/152111747. CC BY-NC-ND 4.0 DEED.