Biosurveillance: Wasp Watching 101

Wasp Watchers is a citizen scientist biosurveillance program hosted by the University of Minnesota. The objective is to monitor the nesting sites of the buprestid-hunting wasp, Cerceris fumipennis, for the invasive Emerald Ash Borer. Yesterday I received from the director of the program a list of ball fields in and around Northfield to survey. One of the sites is just a few blocks from our house, so today, late in the morning, Lisa and I walked the dog in that direction.

The playing field at Greenvale Elementary was quite weedy and unmown. I walked the perimeter looking for nests and found none. Turning my attention to the rest of the field I noticed several black wasps flying near the center of the field, Cerceris fumipennis.

I returned to the field in the afternoon with my net and camera and spent an hour, from 2pm to 3pm, watching the wasps. During this time I found two nests. There were probably more nests because they were very difficult to locate among the weeds growing on the field. The two nests that I found did not have any beetles abandoned near the entrance. And I wasn't able to collect any beetles from wasps returning to their nests (I didn't see any return to their nests with prey either).

Publicado por scottking scottking, 01 de julio de 2017

Observaciones

Fotos / Sonidos

Qué

Zurcidora de Ojos Azules (Rhionaeschna multicolor)

Observ.

scottking

Fecha

Junio 30, 2017 02:10 PM CDT

Descripción

Several observed.

Fotos / Sonidos

Qué

Libélulas Zurcidoras Típicas (Género Aeshna)

Observ.

scottking

Fecha

Junio 30, 2017 05:30 PM CDT

Descripción

Found on window screen after rain.

Fotos / Sonidos

Observ.

scottking

Fecha

Junio 30, 2017 07:14 PM CDT

Descripción

Female. Several observed. TL=12.5mm

Fotos / Sonidos

Observ.

scottking

Fecha

Junio 30, 2017 07:04 PM CDT

Descripción

Female. Several observed. Two nests observed. No beetles found. TL=15mm

Fotos / Sonidos

Observ.

scottking

Fecha

Junio 30, 2017 02:27 PM CDT

Fotos / Sonidos

Observ.

scottking

Fecha

Junio 30, 2017 02:13 PM CDT

Fotos / Sonidos

Observ.

scottking

Fecha

Junio 30, 2017 01:26 PM CDT

Descripción

Carrying small Halictid bee. Bee is pictured in this observation:
https://www.inaturalist.org/observations/59215608

Fotos / Sonidos

Qué

Avispa Papelera Europea (Polistes dominula)

Observ.

scottking

Fecha

Junio 30, 2017 11:11 AM CDT

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