Araba Bioscan

Araba Bioscan 25 December 2020 to 1 January 2021

Data for the period 25 December 2020 to 1 January 2021

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


This week’s images again focus on Hymenoptera in the sample, with several interesting Tiphiidae and large numbers of smaller wasps (Pteromalidae, Chrysididae, etc.).

Among the chrysidoid wasps were one male and one female of the subfamily Elasminae (Eulophidae). The pale hind tibiae of the female clearly show the diamond pattern that Riek, 1967 offers as diagnostic for the genus Elasmus. The female seems to key out cleanly as Elasmus margiscutellum Girault, 1915, a species recorded from Canberra (Mount Majura). The male seems close to Riek’s description of the male of Elasmus aquila Girault, 1912, particularly in the enlarged posterior bristles on the scutellum, although that species has pale fore coxae. The male of Elasmus margiscutellum is not described in Riek.

Sample images

Sample for 25 December 2020 to 1 January 2021

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.

Date26 Dec27 Dec28 Dec29 Dec30 Dec31 Dec1 Jan
Mean temperature (°C)17.119.925.619.017.719.618.9
Max temperature (°C)27.332.736.635.127.831.329.7
Min temperature (°C)13.012.918.413.213.814.714.6
Mean humidity (%)65.768.343.861.
Max humidity (%)
Min humidity (%)
Mean soil moisture (%)
Max soil moisture (%)
Min soil moisture (%)
Mean relative pressure (hPa)1020.91016.71010.41012.41018.41020.31022.1
Max relative pressure (hPa)1022.51021.31016.21016.11021.21022.61024.1
Min relative pressure (hPa)1019.11014.61007.31008.01015.41018.31019.6
Mean absolute pressure (hPa)943.5939.3933.0935.0941.0942.9944.7
Max absolute pressure (hPa)945.1943.9938.8938.7943.8945.2946.7
Min absolute pressure (hPa)941.7937.2929.9930.6938.0940.9942.2
Daily rainfall (mm)
Sunshine hours8.
Max solar radiation (W/m2)1049.61036.2907.71087.51074.11036.21010.5
Max UV index101081010109
Mean wind speed (km/h)
Mean wind direction136.0289.5325.0329.6141.3143.8144.8
Max gust (km/h)

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