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rattler conehead

Neoconocephalus affinis (Palisot de Beauvois, 1819)

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map male cone female
14 s of calling song; male from Milot, Haiti, Wis.; 24.0°C. Peak frequency 11 kHz. (WTL185-3)
This waveform is a 2 s excerpt of the 14 s audio file accessible above. Click on waveform to expand the last 0.2 s.
waveform
Song: Bouts of rattling, mostly between 1 and 4 h after sunset, with component sequences lasting 1 sec to 5 min or longer.
Song data: Excel worksheet and chart (from spectrographic analyses).
Identification: Anterior ventral carina of middle femur with 3 or 4 spines; stridulatory vein, viewed from above, exceeding 3 mm and of approximate uniform width; cone as in drawing above. Length 47-59 mm for males and 53-70 for females.
Similar species: N. maxillosus, which has the anterior ventral carina of the middle femur with 0-1 spines; stridulatory vein, viewed from above, less than 3 mm.
Habitat: Tropical hammock.
Season: August; perhaps year-round.
Remarks: N. affinis is common throughout the Caribbean but in the United States is known only from northern Key Largo.
More information:
Subfamily Copiphorinae, genus Neoconocephalus.
References: Brush et al. 1985; Greenfield 1983, 1993.
Nomenclature: OSF (Orthoptera Species File Online).
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