Tree Crickets - how to observe

listen in late summer for the long sustained trill (or maybe a metronome like chirp)
go towards the sound - when it is very loud ( or stops in response to your movement) start looking in the tops of the plants that are about a foot to two feet off the ground - if there are goldenrods, start with them
the insect is often in the open but is green and so blends in well
Have fun looking

Publicado el 19 de septiembre de 2022 por marykrieger marykrieger

Observaciones

Fotos / Sonidos

Qué

Grillos de Árbol (Género Oecanthus)

Observ.

marykrieger

Fecha

Septiembre 18, 2022 a las 01:50 PM CDT

Descripción

once aware it was being observed, the insect hopped weakly below the leaf canopy clinging to a stem, circling to remain on the far side

Fotos / Sonidos

Observ.

marykrieger

Fecha

Septiembre 18, 2022 a las 02:06 PM CDT

Descripción

on golden rod, once aware it was being observed, the insect hopped weakly below the leaf canopy clinging to a grass stem, circling to remain on the far side

insect was trilling but a plane flew over and so you have to make do with a description

a long continuous trill which stopped abruptly when the insect was approached too closely

Comentarios

partial list of candidate species
Species with| GBIF| (Bug Guide Canadian prairies distribution) {call type}

Nigricornis species group -------
Oecanthus argentinus / Prairie Tree Cricket
|AB SK ND| (AB, SK, MB) {continuous trill}
Oecanthus celerinictus / Fast-calling Tree Cricket |SK|(continuoustrill)
Oecanthus forbesi / Forbes' Tree Cricket | MN|{continuous trill}
Oecanthus nigricornis / Black-horned Tree Cricket | SK MB |{continuous trill}
Oecanthus pini / Pine Tree Cricket | MN |{continuous trill}
Oecanthus quadripunctatus / Four-spotted Tree Cricket |AB SK MN ND|{continuous trill}

Niveus species group-------
Oecanthus niveus / Narrow-winged Tree Cricket | MN |{trill in bursts }

Rileyi species group
Oecanthus fultoni / Snowy Tree Cricket | MN ND |{chirp}

Varicornis species group--------
Oecanthus californicus / Western Tree Cricket | MT |()

Publicado por marykrieger hace más de 1 año

probably overwinter as eggs in plant stems,

goldenrod, dogwood, oak mentioned as preferred locations in some species descriptions holes may be singles, in small groups, or in a line

a picture of stem damage caused by egg laying of species not found in our area https://bugguide.net/node/view/1688531

Publicado por marykrieger hace más de 1 año

helpful to include if possible in observations...

sound recording and sonagram image, temperature at the location of the singing male

image of the insect from the front showing the two segments of antenna that are closest to the head....
( check sample images midway down the page https://bugguide.net/node/view/7538)

general habitat notes

Publicado por marykrieger hace más de 1 año

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