It's a bug hunt.

Source
From the website:
The Tyranid Dimachaeron is a complete multi-part resin kit, designed by Trish Carden. This model is available to pre-order now and will be despatched from Friday 15th August.
The Tyranid Dimachaeron is a complete multi-part resin kit, designed by Trish Carden. This model is available to pre-order now and will be despatched from Friday 15th August.