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| Group species: | Morsei. |
| Song: | Pulse trains are slow enough to count by ear. Pulse trains 70±20 ms in length delivered at a rate of 6.42±0.68 s-1. Mean peak frequency is 14.56±1.02 kHz. Variable echemes contain 19±7 (range 11–34) pulse trains that repeat at a rate between 7–13 min-1. |
| Identification: |
Morphology
Male supra-anal plate A. kelainops, rounded, concave. Not bilobed or indented on the caudal margin. A. nesiazo (north in San Diego County, California), flat, square plate. Diminutiva Group, bilobed or indented on the caudal margin. Male paraproct processes A. kelainops, paraproct processes are about two times longer than wide. Apical internal tooth. A. sphenosternum, long, thin, cylindrical processes. A. amithitis, A. costalis, A. hulodoumus, and A. longipennis, subapical tooth. Male titillator arms A. kelainops, short and nearly straight. A. bufonoides, smoothly curved laterally. Male prosternal spines A. kelainops, normally developed and spinelike. A. sphenosternum, conical spines. Female subgenital plate A. kelainops, lateral processes are longer than wide. A. bufonoides and A. sphenosternum, lateral process are as long as wide. A. nesiazo from Southern California, short, triangular lateral processes. See Key to Aglaothorax species. |
| Range: | Northern Baja California, Mexico. |
| Habitat: | Chaparral on laurel sumac. |
| Season: | Late spring into summer. |
| References: |
Cole et al. 2025
Cole et al. 2025 (Morsei Group) pp. 38-68 Cole et al. 2025 (species pages) pp. 41 and 64-66 |
| Nomenclature: | OSF (Orthoptera Species File Online). |
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