false robust conehead
Neoconocephalus bivocatus Walker, Whitesell, Alexander 1973

green male
stridulatory area

20 s of calling song [1.69MB]; male from Ocean Co., N.J.; 24.3C. (WTL189-8)

Waveform of 5 s of calling at 24.3°C (from WTL189-8). Peak frequency 9 kHz.
Click on first half of waveform to hear graphed song.
Click on second half of waveform to expand last 0.2 s.

Identification:  Length 49–68 mm. Cone immaculate beneath or with transverse black mark near top. Ovipositor longer than 1.2 times length of hind femur. Width of stridulatory area (as measured in drawing above) less than 4.9 mm. Male pronotal length less than 1.8 times rear width.

Habitat:  Roadsides, old fields, and pastures in well-drained and upland areas.

Season:  July–Sept. Matures about two weeks prior to the Neoconocephalus robustus.

Song:  A loud, even, continuous buzz.

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

Similar species:  N. robustus has the ovipositor less than 1.2 times as long as the hind femur, width of stridulatory area more than 4.9 mm. N. velox has the ovipositor shorter than the hind femur, male pronotal length greater than 1.8 times rear width. N. palustris is smaller and has the ovipositor shorter than the hind femur.

More information:  subfamily Copiphorinae, genus Neoconocephalus

References:  Walker et al. 1974, Deily and Schul 2004.

Nomenclature:  OSF (Orthoptera Species File Online)