Psoloessa
Scudder, 1875
brown-spotted range grasshopper (P. delicatula), Texas spotted range grasshopper (P. texana)
Species Guides
2- Psoloessa delicatula(Brown-spotted Range Grasshopper)
- Psoloessa texana(Texas Range Grasshopper)
Psoloessa is a of slant-faced grasshoppers in the Acrididae, Gomphocerinae. The genus contains at least four described distributed across western North America, from British Columbia to Mexico. Two species—P. delicatula (brown-spotted range ) and P. texana (Texas spotted range grasshopper)—are documented in Colorado and Wyoming grasshopper surveys. Members of this genus are characterized by their slant-faced typical of the Gomphocerinae.
Pronunciation
How to pronounce Psoloessa: /sɔlɔˈɛsa/
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Identification
Members of Psoloessa can be distinguished from other Gomphocerinae by their slant-faced profile, where the slopes backward from the vertex. The is placed in the tribe Aulocarini. Specific identification to requires examination of tegmina and wing development, as P. brachyptera and P. microptera exhibit reduced wings (brachypterous and conditions respectively), while P. delicatula and P. texana have fully developed wings. P. delicatula is distinguished by brown spotting on the tegmina; P. texana has distinct spotting patterns and is associated with Texas and adjacent regions.
Habitat
Western North American grasslands, rangelands, and open . occur in Colorado, Wyoming, Arizona, California, and extend into Mexico.
Distribution
Western North America: British Columbia (Canada); Arizona, California, Colorado, Wyoming (United States); Mexico (Northeast).
Similar Taxa
- AulocaraBoth belong to tribe Aulocarini and share slant-faced ; Aulocara (bigheaded grasshopper, whitecrossed grasshopper) have more pronounced enlargement in males and different pronotal proportions
- PseudopomalaBoth are slant-faced Gomphocerinae with reduced-wing ; Pseudopomala brachyptera shares the brachypterous condition with P. brachyptera but differs in geographic distribution and male structure
- OrphulellaSlant-faced pasture grasshoppers in same ; Orphulella typically have more uniform coloration and different stridulatory peg patterns on hind