Keys bush cricket
Orocharis diplastes T. Walker 1969


20 s of calling song [1.73MB]; male from Monroe Co., Fla.: Lower Keys; 25.0°C. (WTL683-4b)
9 s of calling song [392KB]; same as above but truncated and down-sampled.

Sound spectrogram of 2 s of calling at 25.0°C (from WTL683-4b). Dominant frequency 5.7 kHz.
Click on spectrogram to hear graphed song.

Identification:  Length 15-19 mm. Ocellar diameter less than distance between lateral and median ocellus; no conical projections at ocelli; some bristles longer than 0.1 mm on head behind lateral ocelli. Face usually dark medially but if there is a median light area it is shaped like an inverted V, and the median portion of the face just above the light band along the epistomal suture is dark. Stridulatory file has 125–145 teeth.

Habitat:  Black and white mangroves.

Season:  Year round.

Song at 25°C:  Tinkling melodious trills lasting 0.5–2 sec. Pulses within trill are not paired and have two modes of spacing that correspond to 11 and 14 p/s.

Similar species:  (l) Black-faced bush cricket (O. nigrifrons)—no bristles longer than 0.1 mm on head behind lateral ocelli; stridulatory file has 98–110 teeth. (2) Three-horned bush cricket (O. tricornis)—conical projections at ocelli; stridulatory file has 110-130 teeth.

More information:  subfamily Eneopterinae, genus Orocharis

Nomenclature:  OSF (Orthoptera Species File Online)