Araba Bioscan

Araba Bioscan 4-11 December 2020

Data for the period 4-11 December 2020

See the Araba Bioscan Project page for background information on the project and methods.


The week included a few cooler days and biomass in the trap was lower than the previous two weeks.

Photographs this week include several species ichneumonoid wasps that resemble others caught in recent weeks, but also many species not previously caught or photographed.

One of the cicadas caught this week and last week has been identified by David Emery as Yoyetta robertsonae Moulds, Popple & Emery 2020. The type locality for this recently described species is within meters of the Malaise trap. See the paper here: A new species of Yoyetta Moulds from south-eastern Australia with notes on relationships within the Yoyetta tristrigata species group (Hemiptera, Cicadidae, Cicadettini).

Sample images

Sample for 4-11 December 2020

Environmental measurements

Sunrise and sunset sourced from Sunrise-Sunset and relate to the listed date. All other measurements are calculated for the 24-hour period to 09:00.

Date5 Dec6 Dec7 Dec8 Dec9 Dec10 Dec11 Dec
Mean temperature (°C)21.118.615.514.115.319.516.5
Max temperature (°C)
Min temperature (°C)11.411.910.57.07.511.28.7
Mean humidity (%)47.968.750.457.455.953.363.7
Max humidity (%)
Min humidity (%)
Mean soil moisture (%)29.245.844.036.531.929.227.9
Max soil moisture (%)
Min soil moisture (%)
Mean relative pressure (hPa)1015.11005.01006.91009.51017.11018.61024.4
Max relative pressure (hPa)1018.11013.61009.31014.71020.51020.91029.9
Min relative pressure (hPa)1013.51001.31004.61006.71014.71016.81019.6
Mean absolute pressure (hPa)937.7927.6929.5932.1939.7941.2947.0
Max absolute pressure (hPa)940.7936.2931.9937.3943.1943.5952.5
Min absolute pressure (hPa)936.1923.9927.2929.3937.3939.4942.2
Daily rainfall (mm)
Sunshine hours9.
Max solar radiation (W/m2)895.5904.01012.91020.3988.5920.01006.8
Max UV index8899989
Mean wind speed (km/h)
Mean wind direction320.3322.3327.5319.1324.3325.8142.2
Max gust (km/h)20.236.729.531.323.814.814.8

Leave a Reply

Your email address will not be published. Required fields are marked *