Syrbula

Members of Syrbula can be distinguished from other Gomphocerinae by their slant-faced head morphology, with the face slanting backward from the fastigium. The genus is characterized by long antennae and distinctive pronotal features. Specific species-level identification requires examination of male genitalia and subtle differences in coloration and body proportions. The two North American species that occur sympatrically in parts of Texas (S. admirabilis and S. montezuma) can be distinguished by differences in their calling songs, which function in reproductive isolation.

Grassland habitats including tallgrass prairie, mixedgrass prairie, and desert prairie. In the western United States, occupies areas with midgrasses and areas receiving additional moisture. Patches of western wheatgrass in swales, around ponds, and along streams are preferred habitats for some populations.

North America from the southern United States (including Alabama, Arizona, Arkansas, Georgia, and Texas) southward through Central America (Costa Rica). The genus has been recorded in western states including Wyoming and Colorado.

Late hatching group; hatching begins in early summer. Adults present from mid-summer through fall.

Feeds primarily on grasses. In tallgrass prairie habitats, associated with midgrass vegetation.

Eggs hatch in early summer. Nymphs develop through multiple instars before reaching adulthood. Overwintering stage not definitively established for all species; may vary by species and latitude.

Exhibits the most elaborate courtship behavior known in grasshoppers. Pair formation occurs through attraction of females to stridulating males, or through reciprocal stridulation and approaching between sexes. Males perform complex visual displays involving synchronous and asynchronous leg movements, acoustic stridulation, and chemical secretions. Sexual dimorphism is pronounced. Males may engage in intermale rivalry including female theft and production of spacing signals. When pairs form through exchange of calling signals, elaborate courtship may be abbreviated; however, males perform full displays when approaching sexually unreceptive females.

Primary consumer in grassland ecosystems. Contributes to nutrient cycling through herbivory and serves as prey for various vertebrate and invertebrate predators.

S. admirabilis has been documented as a dominant species in some tallgrass prairie grasshopper assemblages, though economic impact appears limited. Not considered a major agricultural pest. Subject of behavioral research due to elaborate communication systems.

• ChortophagaBoth are Gomphocerinae with slant-faced morphology; Chortophaga species such as C. viridifasciata share similar habitat preferences in moist grasslands but differ in having greenstriped coloration and less elaborate courtship behavior
• MermiriaSlant-faced grasshoppers in the same tribe (Amblytropidiini) with similar body proportions; Mermiria species differ in pronotal structure and lack the complex multimodal courtship displays of Syrbula
• OrphulellaSlant-faced Gomphocerinae occupying similar grassland habitats; Orphulella species are generally smaller with different antennal proportions and simpler courtship behavior

• grasshopper
• slant-faced
• elaborate courtship
• multimodal communication
• grassland
• North America
• Gomphocerinae

• BugGuide
• Wikipedia
• GBIF taxonomy match
• iNaturalist taxon
• NCBI Taxonomy
• Catalogue of Life
• Grasshoppers of Colorado
• Grasshoppers of Colorado
• Greenstriped Grasshopper
• Threebanded Grasshopper
• Field Guide
• Grasshoppers of Wyoming and the West
• Simple Versus Elaborate Behavior in Grasshoppers an Analysis of Communication in the Genus Syrbula
• Communicative Behavior of the Grasshopper Syrbula fuscovittata (Thomas) (Gomphocerinae) with Particular Consideration of the male Courtship1