three-horned bush cricket
Orocharis tricornis T. Walker 1969

map
male
female
head

20 s of calling song [1.73MB]; male from Monroe Co., Fla.: Flamingo; 24.8°C. (WTL685-9a)
6 s of calling song [269KB]; same as above but truncated and down-sampled.


Sound spectrogram of 2 s of calling at 24.8°C (from WTL685-9a). Dominant frequency 6.1 kHz.
Click on spectrogram to hear graphed song.

Identification:  Length 17–21 mm. Ocellar diameter less than distance between lateral and median ocellus; conical projections at each ocellus; some bristles longer than 0.1 mm on head behind lateral ocelli. Facial pattern varies but if there is a median light area it does not reach the epistomal suture. Stridulatory file has 110  130 teeth.

Habitat:  Mangroves and subtropical hammocks.

Season:  Probably year-round (records are for Mar.–Aug. and Dec.).

Song at 25°C:  Brief chirp repeated at 0.5–2 sec. intervals. Chirps have 2–3 pulses at 40 p/s. Carrier frequency drops more than 1 kHz at lower temperatures.

Similar species:  (1) False jumping bush cricket (O. luteolira)—no conical projections at lateral ocelli; stridulatory file has 66-82 teeth. (2) Keys bush cricket (O. diplastes)—no conical projections at ocelli; stridulatory file has 125–145 teeth.

More information:  subfamily Eneopterinae, genus Orocharis

Nomenclature:  OSF (Orthoptera Species File Online)