taxonID	type	description	language	source
E959021D63305E48B0D5557001635156.taxon	description	Figs 2 B, 3 G, 6 A, 8 A – J, 9 A, 10 A – F, 11	en	Hill, JoVonn G. (2025): Two new genera of grasshoppers (Orthoptera, Acrididae, Melanoplinae) from Baja California, Mexico, with a regional key to the genera of Melanoplinae. ZooKeys 1238: 75-97, DOI: 10.3897/zookeys.1238.147762
E959021D63305E48B0D5557001635156.taxon	diagnosis	Diagnosis. Bajatettix cabopulmoensis is a medium-sized, wingless, gray grasshopper with broad dark-brown stripes on the head, thorax, and hind femurs that is endemic to the Baja peninsula (Figs 2 B, 8 J). The wingless state separates it from other melanoplines on the peninsula with the exception of members of Psilotettix, which it can be distinguished from by having a combination of a smooth body surface and the dark-brown markings on the head, thorax, and hind femur. While the genus is monotypic, the characters of the male terminalia and genitalia typically used for species-level identification in the Melanoplinae are detailed in the generic description above and illustrated in Fig. 8 A – I.	en	Hill, JoVonn G. (2025): Two new genera of grasshoppers (Orthoptera, Acrididae, Melanoplinae) from Baja California, Mexico, with a regional key to the genera of Melanoplinae. ZooKeys 1238: 75-97, DOI: 10.3897/zookeys.1238.147762
E959021D63305E48B0D5557001635156.taxon	description	Male measurements (mm). (n = 7). Body length 17.2 – 19.3 (mean = 18.1); pronotum length 3.4 – 3.9 (mean = 3.6); hind femur length 9.2 – 10.0 (mean = 9.4); cerci length 0.5 – 0.7 (mean = 0.6); basal width of cercus 0.3 – 0.5 (mean = 0.2); mid width of cercus 0.2 – 0.3 (0.2); cerci apex width 0.1 (mean = 0.1).	en	Hill, JoVonn G. (2025): Two new genera of grasshoppers (Orthoptera, Acrididae, Melanoplinae) from Baja California, Mexico, with a regional key to the genera of Melanoplinae. ZooKeys 1238: 75-97, DOI: 10.3897/zookeys.1238.147762
E959021D63305E48B0D5557001635156.taxon	description	Phallus measurements (mm). (n = 1). Length 0.5; dorsal valve apex width 0.1; dorsal valve middle width 0.7; dorsal valve basal width 0.5, ventral valve apex width 0.2, ventral valve middle width 0.2, ventral valve basal width 0.2.	en	Hill, JoVonn G. (2025): Two new genera of grasshoppers (Orthoptera, Acrididae, Melanoplinae) from Baja California, Mexico, with a regional key to the genera of Melanoplinae. ZooKeys 1238: 75-97, DOI: 10.3897/zookeys.1238.147762
E959021D63305E48B0D5557001635156.taxon	description	Female measurements (mm). (n = 2). Body length 20.5 – 22.3 (mean = 21.4); pronotum length 4.5 – 5.1 (mean = 4.8); hind femur length 11.0 – 11.7 (mean = 11.4); dorsal ovipositor valve length 1.0 – 1.3 (mean = 1.2); ventral ovipositor valve length 1.0 – 1.3 (mean = 1.2).	en	Hill, JoVonn G. (2025): Two new genera of grasshoppers (Orthoptera, Acrididae, Melanoplinae) from Baja California, Mexico, with a regional key to the genera of Melanoplinae. ZooKeys 1238: 75-97, DOI: 10.3897/zookeys.1238.147762
E959021D63305E48B0D5557001635156.taxon	distribution	Distribution. Bajatettix cabopulmoensis is known only from the Capo Pulmo region of the eastern Cape Region of southern Baja California (Fig. 10).	en	Hill, JoVonn G. (2025): Two new genera of grasshoppers (Orthoptera, Acrididae, Melanoplinae) from Baja California, Mexico, with a regional key to the genera of Melanoplinae. ZooKeys 1238: 75-97, DOI: 10.3897/zookeys.1238.147762
E959021D63305E48B0D5557001635156.taxon	etymology	Etymology. Specific epithet derived from the Cabo Pulmo region where the species is apparently endemic to and the suffix “ - ensis ” (Latin) meaning “ originating from ” or “ inhabiting ”. This name reflects the localized nature of the species and hopefully draws attention to the importance of conservation in this region.	en	Hill, JoVonn G. (2025): Two new genera of grasshoppers (Orthoptera, Acrididae, Melanoplinae) from Baja California, Mexico, with a regional key to the genera of Melanoplinae. ZooKeys 1238: 75-97, DOI: 10.3897/zookeys.1238.147762
3D7A77008B2856EF8AC77343A46B3142.taxon	description	Figs 2 B, 3 G, 6 A, 8 A – D, 9 A, 10 A – F, 11	en	Hill, JoVonn G. (2025): Two new genera of grasshoppers (Orthoptera, Acrididae, Melanoplinae) from Baja California, Mexico, with a regional key to the genera of Melanoplinae. ZooKeys 1238: 75-97, DOI: 10.3897/zookeys.1238.147762
3D7A77008B2856EF8AC77343A46B3142.taxon	description	Generic description. External morphology. Small (17.2 – 22.3 mm), apterous grasshoppers (Figs 2 B, 6 A). Head moderately sized and equal in width to the anterior edge of the prozona; vertex between the eyes much wider than the basal antennomere; fastigium broadly rounded being more pronounced dorsally than ventrally, with a dorsal shallow medial depression that is broad apically and narrow caudally. Eyes prominent, especially in males. Three ocelli present. Antennae filiform, usually with 20 – 23 flagellomeres in males, and 21 – 25 in females, nearly cylindrical, but slightly flattened dorso-ventrally, especially the distal two articles, equal in width throughout, except two basal articles. Clypeus trapezoidal with lateral sulci and a shallow medial notch on the ventral edge. Thorax with prosternal spine short, broad, and bluntly rounded distally. Pronotum convex in cross section, anterior margins broadly rounded, posterior margin truncate, medial carina cut by three sulci, lateral carinae absent and humeral margins rounded. Prozona punctate; lateral lobes with parallel lateral margins and the ventral margin sharply angled caudally. Metazona punctate throughout, with humeral margins rounded and in dorsal view, slightly diverging posteriorly. Median carina low, almost indistinct. Anterior, median, and posterior sulci are apparent, and all dissect the median carina and nearly reach the ventral margin of the lateral lobes. Lateral pronotal margins broadly rounded throughout. Interspace between mesosternal lobes quadrate, being as long as broad. Tegmina absent. Pro- and meso-thoracic legs not robust or inflated appearing. Hind femur enlarged with basal end bi-lobed. Hind tibia with 7 or 8 pairs of spines, but typically 8. Tympanum present, appearing as an opaque whitish disk. Abdomen cylindrical with distal portion distinctly, but not greatly enlarged in males. Terminalia of the male with short furcula that are widely separated at their bases (Fig. 8 A, B). Supra-anal plate (Fig. 8 A, B) broadly triangular, being broader than long, median grove notably indistinct. (Fig. 8 A). Cercus of the male (Figs 3 G, 8 A, B) triangular, being longer than wide, acutely pointed distally. Subgenital plate with a low, but even dorsal margin, and a distinct median carina (Fig. 8 A). Phallic structures. The dorsal valves of the aedeagus are produced as broadly rounded plates in lateral view and in dorsal view are slanted caudally approximately 30 degrees medially to distally. The dorsal valves are widest in the middle and taper more sharply toward the distal end than at the base (Fig. 8 C, E). In dorsal view, are parallel and join medially to form a quadrate process that extends slightly beyond the dorsal valves. In lateral view, the ventral valves appear as blunt tipped acutely angled triangle (Fig. 8 D, F). In caudal view, the dorsal valves are broad arches, and the ventral valves meet medially to form a concave channel (Fig. 8 G). Rami of the cingulum expanded into a broad plate in lateral view (Fig. 8 D, F). Zygoma obsolete. The epiphallus is of the typical melanoploid shape, having lophi, ancorae, and an undivided bridge (Fig. 8 H, I). More precisely, the epiphallus of Bajatettix have a slightly concave bridge, acutely sloping lophi with a broadly rounded apex, convexly curved lateral plates that are subdeltate in shape with a rounded anterior lobe and a rounded caudal tip, and ancora that are triangular, often tapering to a point (Fig. 8 H, I). See Fig. 7 for labeled image. Females are similar to the males, but differ in being larger, more robust, and in the shape of the terminalia (Fig. 9 A). Terminalia of female with triangular cerci and ovipositor valves that are subequal in length. The dorsum of the dorsal valves is nodose to slightly serrate proximally and concave and upcurving to a tip distally; the ventral valves have ventral margins curving basally and then about mid-point abruptly straighten distally (Fig. 9 A). Coloration overall ecru (grayish yellow) with raw umber (dark brown) bands on the head, mesothorax, abdomen, and hind femur (Figs 6 A, 8 J, 10 A – F). Antenna ecru. Head ecru with a raw umber stripe on the gena. Pronotum with prozona ecru without a post ocular stripe; Mesothorax cinereous raw umber; metathorax ecru. The fore and middle legs ecru and unmarked. Hind femur ecru with an oblique cinereous raw umber band laterally that continues onto the dorsum; a dark crescent at the upper lateral femorotibial joint; hind femur coral red with black tipped spines. Abdomen ecru with a lateral raw umber stripe on some segments, especially in line with the oblique band on the hind femur.	en	Hill, JoVonn G. (2025): Two new genera of grasshoppers (Orthoptera, Acrididae, Melanoplinae) from Baja California, Mexico, with a regional key to the genera of Melanoplinae. ZooKeys 1238: 75-97, DOI: 10.3897/zookeys.1238.147762
3D7A77008B2856EF8AC77343A46B3142.taxon	diagnosis	Diagnosis. Bajatettix lacks wings which easily differentiates it and Psilotettix from Oedomeris and other melanoplines on the Baja peninsula. The body surface of Bajatettix is generally smooth with the mesothorax and metathorax covered with a broad dark band (Figs 2 B, 6 A), whereas the surface of Psilotettix is rugose and punctate and variously colored.	en	Hill, JoVonn G. (2025): Two new genera of grasshoppers (Orthoptera, Acrididae, Melanoplinae) from Baja California, Mexico, with a regional key to the genera of Melanoplinae. ZooKeys 1238: 75-97, DOI: 10.3897/zookeys.1238.147762
3D7A77008B2856EF8AC77343A46B3142.taxon	type_taxon	Type species. Bajatettix cabopulmoensis sp. nov.	en	Hill, JoVonn G. (2025): Two new genera of grasshoppers (Orthoptera, Acrididae, Melanoplinae) from Baja California, Mexico, with a regional key to the genera of Melanoplinae. ZooKeys 1238: 75-97, DOI: 10.3897/zookeys.1238.147762
3D7A77008B2856EF8AC77343A46B3142.taxon	etymology	Etymology. Prefix “ Baja - “ from Baja California, where the genus is endemic, and the suffix “ - tettix ” (Greek) meaning grasshopper.	en	Hill, JoVonn G. (2025): Two new genera of grasshoppers (Orthoptera, Acrididae, Melanoplinae) from Baja California, Mexico, with a regional key to the genera of Melanoplinae. ZooKeys 1238: 75-97, DOI: 10.3897/zookeys.1238.147762
0DDD69A266FF549C814BBDD690894EC3.taxon	description	Figs 2 C, 3 H, 6 B, 9 B, 12 A – J, 13 A – E, 14 A – D, 15 A – D, 16	en	Hill, JoVonn G. (2025): Two new genera of grasshoppers (Orthoptera, Acrididae, Melanoplinae) from Baja California, Mexico, with a regional key to the genera of Melanoplinae. ZooKeys 1238: 75-97, DOI: 10.3897/zookeys.1238.147762
0DDD69A266FF549C814BBDD690894EC3.taxon	description	Generic description. External morphology. A genus of small (15.0 – 23.5 mm), brachypterous grasshoppers (Figs 2 C, 6 B 12 J). Head moderately sized and in equal in width to the anterior edge of the prozona; vertex between the eyes much wider than the basal antennomere; fastigium broad rounded, being more pronounced dorsally than ventrally, with a narrow deep medial depression dorsally, and a broad, shallow depression anteriorly. Eyes somewhat prominent, especially in males. Three ocelli present. Antennae filiform, usually with 22 flagellomeres in males, and 24 – 25 in females; nearly cylindrical, but slightly flattened dorso-ventrally; equal in width throughout, except two basal articles. Clypeus trapezoidal with lateral sulci and a shallow medial notch on the ventral edge. Thorax with prosternal spine well developed, broadly rounded distally. Pronotum convex in cross section, anterior margins sub-truncate, posterior margin broadly rounded, medial carina cut by three sulci, lateral carinae absent and humeral margins rounded. Prozona mostly smooth, but with light rugulation dorsally; lateral lobes broadly rounded (more so in females) with parallel lateral margins and the ventral margin sharply angled caudally. Metazona lighly punctate anteriorly and heavily punctate caudally, with humeral margins rounded and in dorsal view, slightly diverging posteriorly. Median carina low, but distinct throughout, except where the sulci cross it. Anterior, median, and posterior sulci are apparent, and all dissect the median carina and nearly reach the ventral margin of the lateral lobes. Lateral pronotal margins broadly rounded throughout. Interspace between mesosternal lobes nearly twice as long as broad. Tegmina elongate lobate with rounded apicies; dorsal margins broadly separated dorsally, strongly veined, and extending little past the anterior margin of the second abdominal tergite. Pro and meso thoracic legs not robust or inflated appearing. Hind femur enlarged with basal end bi-lobed. Hind tibia with 10 or 11 pairs of spines, but typically 10. Tympanum present under tegmina, appearing as an opaque whitish disk. Abdomen cylindrical with distal portion distinctly, but not greatly enlarged in males. Terminalia of the male without furcula (Fig. 12 A, B). Supra-anal plate (Fig. 12 A, B) broadly triangular, being broader than long, with the anterior margin distinctly bi-lobate; the median groove anteriorly distinct with elevated sides but only extending approximately over half the plate (Fig. 12 A). A low carina divides the apical and caudal halves and terminates in mid-distal short lateral spinules. Cercus of the male (Figs 3 H, 12 A, B) subquadrate, but longer than wide, with a small tooth on the ventral apical margin. species, Subgenital plate with a low, but even margin. Phallic structures. The dorsal valves of the aedeagus are produced as cuneiform plates that are sculptured with small serrations and are slightly shorter than the ventral valves (Fig. 12 C, E). The ventral valves are linear, parallel plates with distinct angles along the disto-lateral margins. They have a smoother texture and are slightly longer than the dorsal valves (Fig. 12 C – G). The epiphallus is of the typical melanoploid shape, having lophi, ancorae, and an undivided bridge, but more precisely, Ozmacris has a concave bridge, broadly bidentate lophi, concavely curved lateral plates that are subdeltate in shape with an angular anterior lobe and caudal tip, and ancora that are triangular (Fig. 12 H, I). See Fig. 7 for labeled image. Females are similar to the males, but differ in being larger, more robust, and in the shape of the terminalia (Figs 9 B, 13 A – D, 14 B – D, 15 A – C). Terminalia of female with triangular cerci and ovipositor valves that are subequal in length. The dorsal valves with their dorsal margin nodose proximally and slightly serrate distally, and with the distal apices concave and upcurving to a tip. The ventral valves with their ventral margins straight basally and then arching distally (Fig. 9 B). Coloration light citron (green with a yellow tinge) overall, with individual variation that can have extremities with a light tan hue (Figs 2 C, 6 B, 9 B, 12 J, 14 A – D, 15 A – D). Antenna light testaceous (dull brick-red). Head citron with black markings, including a dorsal more or less broken, black band which follows the sulcus of the fastigium and broadens caudally, and a broad post-ocular stripe. Genae citron. Pronotum citron with an olivaceous tinge; lateral lobes marked with the post-ocular stripe beginning just behind the anterior border of the prozona across the mesosoma and then disappearing on the metazoa; disk with median carinae and two subdorsal lines. Tegmina black on the lower two-thirds, above third white (3 A, 13 A – E). The fore and middle legs unmarked. Hind femur pallid citron, the entire geniculation except most of the lower lobe black; hind tibia brownish citron to pale blue with black spines. Abdomen with a narrow medial black stripe; medial carinae citron or testaceous depending on the individual.	en	Hill, JoVonn G. (2025): Two new genera of grasshoppers (Orthoptera, Acrididae, Melanoplinae) from Baja California, Mexico, with a regional key to the genera of Melanoplinae. ZooKeys 1238: 75-97, DOI: 10.3897/zookeys.1238.147762
0DDD69A266FF549C814BBDD690894EC3.taxon	diagnosis	Diagnosis. Ozmacris is a medium-sized, brachypterous green grasshopper with bicolored tegmina, which easily differentiates it from other melanoplines on the peninsula (Figs 2 C, 6 B). It is separated from Barytettix in having oval tegmina, toothed male cerci, a subgenital plate that is not conical, and a distinct overall aedeagus shape. Ozmacris differs from Sinaloa by having bi-colored tegmina, toothed male cerci, less developed furculae, and a distinct overall aedeagus shape.	en	Hill, JoVonn G. (2025): Two new genera of grasshoppers (Orthoptera, Acrididae, Melanoplinae) from Baja California, Mexico, with a regional key to the genera of Melanoplinae. ZooKeys 1238: 75-97, DOI: 10.3897/zookeys.1238.147762
0DDD69A266FF549C814BBDD690894EC3.taxon	type_taxon	Type species. Barytettix peninsulae Scudder, 1897 (by original designation).	en	Hill, JoVonn G. (2025): Two new genera of grasshoppers (Orthoptera, Acrididae, Melanoplinae) from Baja California, Mexico, with a regional key to the genera of Melanoplinae. ZooKeys 1238: 75-97, DOI: 10.3897/zookeys.1238.147762
0DDD69A266FF549C814BBDD690894EC3.taxon	etymology	Etymology. Ozmacris is a combination of “ Ozama ” after Princess Ozma from L. Frank Baum’s Ozma of Oz (Baum 1907) and acris from the Greek word for grasshopper. The name is a reference to the scene where Princess Ozma is transformed by the Nome King into an emerald-green grasshopper ornament beneath the Deadly Desert. Baum (1907: 180) described the scene: “ The room was quite empty of life after that. The Nome King had gained a new ornament, for upon the edge of the table rested a pretty grasshopper, seemingly crafted from a single emerald. It was all that remained of Ozma of Oz ”.	en	Hill, JoVonn G. (2025): Two new genera of grasshoppers (Orthoptera, Acrididae, Melanoplinae) from Baja California, Mexico, with a regional key to the genera of Melanoplinae. ZooKeys 1238: 75-97, DOI: 10.3897/zookeys.1238.147762
53EEEDC0B9D956CBB6B7EC18117FF7BC.taxon	description	Figs 2 C, 3 H, 6 B, 9 B, 12 A – J, 13 A – E, 14 A – D, 15 A – D, 16	en	Hill, JoVonn G. (2025): Two new genera of grasshoppers (Orthoptera, Acrididae, Melanoplinae) from Baja California, Mexico, with a regional key to the genera of Melanoplinae. ZooKeys 1238: 75-97, DOI: 10.3897/zookeys.1238.147762
53EEEDC0B9D956CBB6B7EC18117FF7BC.taxon	diagnosis	Diagnosis. Ozmacris peninsulae is a medium-sized, brachypterous, greenish grasshopper with bicolored (black and white) oval tegmina (Figs 2 C, 6 B). The green coloration and shape and color of the tegmina separate it from most other melanoplines on the Baja peninsula. It can be further distinguished from Barytettix in having a non-conical subgenital plate and toothed male cerci. While the genus is monotypic, the characters of the male terminalia and genitalia typically used for species-level identification in the Melanoplinae are detailed in the generic description above and illustrated in Fig. 12 A – I.	en	Hill, JoVonn G. (2025): Two new genera of grasshoppers (Orthoptera, Acrididae, Melanoplinae) from Baja California, Mexico, with a regional key to the genera of Melanoplinae. ZooKeys 1238: 75-97, DOI: 10.3897/zookeys.1238.147762
53EEEDC0B9D956CBB6B7EC18117FF7BC.taxon	description	Male measurements (mm). (n = 1). Body length 15.0; pronotum length 4.1; tegmen length 2.1; hind femur length 11.6; cerci length 0.9; basal width of cercus 0.3; mid-cercal width 0.3; cerci apex width 0.3.	en	Hill, JoVonn G. (2025): Two new genera of grasshoppers (Orthoptera, Acrididae, Melanoplinae) from Baja California, Mexico, with a regional key to the genera of Melanoplinae. ZooKeys 1238: 75-97, DOI: 10.3897/zookeys.1238.147762
53EEEDC0B9D956CBB6B7EC18117FF7BC.taxon	description	Phallus measurements (mm). (n = 1). Length 0.6; apex width 0.2; middle width 0.5; basal width 0.5. Because both pairs of valves are largely parallel and fit closely together the structures were measured as a single unit.	en	Hill, JoVonn G. (2025): Two new genera of grasshoppers (Orthoptera, Acrididae, Melanoplinae) from Baja California, Mexico, with a regional key to the genera of Melanoplinae. ZooKeys 1238: 75-97, DOI: 10.3897/zookeys.1238.147762
53EEEDC0B9D956CBB6B7EC18117FF7BC.taxon	description	Female measurements (mm). (n = 3). Body length 18.6 – 23.5 (mean = 21.2); pronotum length 4.2 – 5.0 (mean = 4.6) tegmen length 2.5 – 3.2 (mean = 2.9); hind femur length 10.5 – 13.2 (mean = 11.8); dorsal ovipositor valve length 1.7 – 2.0 (mean = 1.7); ventral ovipositor valve length 1.3 – 1.7 (mean = 1.7).	en	Hill, JoVonn G. (2025): Two new genera of grasshoppers (Orthoptera, Acrididae, Melanoplinae) from Baja California, Mexico, with a regional key to the genera of Melanoplinae. ZooKeys 1238: 75-97, DOI: 10.3897/zookeys.1238.147762
53EEEDC0B9D956CBB6B7EC18117FF7BC.taxon	distribution	Distribution. Ozmacris peninsulae is known only from the Cape Region of Baja California (Fig. 16).	en	Hill, JoVonn G. (2025): Two new genera of grasshoppers (Orthoptera, Acrididae, Melanoplinae) from Baja California, Mexico, with a regional key to the genera of Melanoplinae. ZooKeys 1238: 75-97, DOI: 10.3897/zookeys.1238.147762
