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marsh conehead

Neoconocephalus palustris (Blatchley 1893)

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map brown male green male green male
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cone (ventral) cone (profile)    
19 s of calling song, male from Obion County, Tenn., 26.0°C. Peak frequency 10 kHz (WTL186-10). Click on sound bar to hear entire recording.
This sound spectrogram is a 5 s excerpt of the 19 s audio file accessible above. Click on sound bar to hear graphed song. Click on waveform to expand last 0.2 s.
Song: A smooth, high-pitched buzz.
Song data: Excel worksheet and chart (from spectrographic analyses).
Identification: A small-to-medium, secretive conehead with a slightly pinched cone that is immaculate beneath. Lower margins of hind femur darker near bases of spines. Ovipositor shorter than hind femur. Length 37-46 mm for males, 40-62 for females.
Similar species: N. velox is longer; occurs earlier in the year; and its cone, in profile view, is straight beneath; lower margins of hind femur not darker near bases of spines. N. robustus and N. bivocatus are larger and have ovipositors that are as long as or longer than the hind femur.
Habitat: Dense grass and herbaceous vegetation in wet places.
Season: Aug.–Sept. (north), July–Oct. (south); N. Fla. data.
More information:
subfamily Copiphorinae, genus Neoconocephalus
Nomenclature: OSF (Orthoptera Species File Online)
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