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31b - Elasmus margiscutellum Girault, 1915 | by dhobern
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31b - Elasmus margiscutellum Girault, 1915

Female, sample from Malaise trap, Aranda, ACT, Australia, 25 December 2020 to 1 January 2021

 

Keyed from Riek, 1967:

 

Hind tibia with the series of hairs forming, behind, a row of rhomb-shaped areas -> Elasmus

 

1 - Posterior pair of scutellar bristles little if any longer tha anterior pair but generally a little stouter -> 5

 

5 - Scutellum mostly or entirely dark -> 16

 

16 - Scutum all dark or with only very small spots of yellow -> 23

 

23 - Hind coxa dark over whole dorsal surface -> 26

 

26 - Prothorax completely dark -> 28

 

28 - At least middle and hind femora with a complete dark cinctus (sometimes all or mostly dark) -> 42

 

42 - Scutellum yellow at apex (gaster dark only at extreme base of segment 2, a spot laterally on 5 and 6, and 7 to apex dark ; all femora with a wide dark cinctus) - margiscutellum Girault

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Uploaded on January 3, 2021