Clubs/stalks on invertebrates

Yes this looks like what used to be called Cordyceps gunnii. This species was renamed Drechmeria gunnii in 2015. This specimen is atypical because of the partial coating of white which is a species of parasitic fungus possibly a Hypomyces

This is an as yet unidentified Cordyceps anamorph (conidial fungi) Which is a different state to the fungi we see that produce spores. In simple terms these come from conidia rather than spores due to a different and independent evolutionary pathway to its related telomorphic fungus (with spores) from which they were derived!! . Due to the naming Code all these different states are grouped under the one name these days - hence Cordyceps in this case. A great and unusual sighting, well photographed