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We had a short visit recently to one of the waterways that runs through Styx Mill Reserve, in Christchurch. The ~60 ha site has an interesting mix of vegetation types (mainly wetland and riparian areas), and even some locally rare plants. But on this occasion we went to look for arthropods – both in and around the water.

Below are a few of our finds. Our thanks to the folks at NatureWatch for help with the identifications.

The forest shield bug (Oncacontias vittatus):

 

Another immature shield bug, probably a Rhopalimorpha sp.

CINJAT Rhopalimorpha sp IMG_2680

The New Zealand pond-skater (Microvelia macgregori):

 

The larvae of a mosquito/midge (Family Dixidae)

CINJAT Family Dixidae Aquatic larvae IMG_2670

A longjawed orb weaver spider (genus Tetragnatha):

CINJAT longjawed orbweaver

And this is the same spider making itself as thin as possible, presumably for hiding:

CINJAT Swamp orbweb spider Tetragnatha sp IMG_2714

There is a guide to many of the species in the reserve on the Landcare website here and the reserve is part of the Styx Project. There is also a comprehensive booklet about Christchurch Waterways available from Environment Canterbury here.

 

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