marsh conehead
Neoconocephalus palustris (Blatchley 1893)

cone (ventral)
cone (profile)

19 s of calling song [1.63MB]; male from Obion Co., Tenn.; 26.0C. (WTL186-10)

Waveform of 5 s of calling at 26.0°C (from WTL186-10). Peak frequency 10 kHz.
Click on first half of waveform to hear graphed song.
Click on second half of waveform to expand last 0.2 s.

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.

Habitat:  Dense grass and herbaceous vegetation in wet places.

Season:  Aug.–Sept. (north), July–Oct. (south); N. Fla. data.

Song:  A smooth, high-pitched buzz.

Song data:  Excel worksheet and chart (from spectrographic analyses).

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.

More information:  subfamily Copiphorinae, genus Neoconocephalus

Nomenclature:  OSF (Orthoptera Species File Online)