Yellow-antennae Weevil Wasp
Female, anterior
Yellow-antennae Weevil Wasp
Female, Waist
| Yellow-antennae Weevil Wasp Female, anterior | | Yellow-antennae Weevil Wasp Female, Waist | | ||
 | Class: | Animals (Animalia) - Jointed Legs (Arthropoda) - Insects (Insecta) | |||
| Order: | Ant Bee Wasps (Hymenoptera) | ||||
| Family: | Square-headed Wasp (Wasp: Crabronidae) iNaturalist Observation | ||||
| Species: | Yellow-antennae Weevil Wasp (Cerceris australis) | ||||
| This Photo: | Female, Abdomen | ||||
Thank you Kerri-Lee Harris for identifying and Milo van Loon for helping with the id of this species for us General Species Information: Found on Ellura (in the Murray Mallee, SA) and elsewhere ~12mm long. Was found just starting to dig a hole/nest. Males & females can be separated by the males having 7 abdominal segments, while females have 6. Looking at the profile photo's it appears they have 1 less than this (remember the petiole/waist is considered to be the 1st adominal seqment). The genders can also be separated by antenna counts. 10 flagellomeres (or 12 segments) for females & 11 (or 13 segments) for males. Kerri-Lee said "This seems an excellent match for Evans' 1981 description of C. australis (an abundant and widespread species of eastern Australia). In particular:
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