This summer has seen a massive cohort or two of Xanthogaleruca luteola, and most elms in the town have been seriously defoliated (except for some of the variegated cultivars). Some nights there are thousands of dead beetles piled up outside lit shop windows, and I've had a steady stream of them inside my house.
A black beetle about 25 mm long with bands of brown, black and white patterns on the elytra and thorax. There were small patches of brown at the apices. . The elytra and thorax were covered with short stiff setae and each elytron had a narrow white line near the apex. The thorax was narrower posteriorly. The head had a crown-shaped pattern posterior to the eyes.
Comments from Martin Lagerwey: one nymph molting, the emerging nymph will be second instar and is entirely red for a few hours till its black markings appear. This group is a stink bug. I think it is the predatory stink bug based on the 'eyelashes' seen on the eggs. Two photos included with this observation.
There are lots of these in the house I've just moved into in the centre of Kyneton. I haven't seen any frass around the place to suggest that their larvae are eating the house, but they just keep appearing! About 5mm in length. Excuse the poor mobile phone image.
A small Castiarina I didn't think I had seen before.
About 10mm long; all metallic green and yellow.
Sexual dimorphism? Some C.flavopicta are 40% larger. Some are orange and blue. Patterns are larger and smaller than this diminishing completely in places. Many different coloured pronotum and head. etc.
This 20 mm long beetle looked very different to other ground beetles because of its flattened body and a thorax that is notched both anteriorly and posteriorly. Elytra showed fine parallel ridges and had a metallic sheen which reflected purple and teal colours. Legs were long had short spines.
These ground beetles are said to feed on caterpillars. They are strongly attracted to U-V emitting lights and can congregate in large numbers but do not stay in one place for long. They stay hidden during the day but are very active at night.
About 12 mm long this black beetle had broadly convex body with ridged elytra and a thin marginal flange. The pronotum showed broader flanges and thick lateral margins. Head and eyes were small. Antennae had beaded segments.
Spotted on grass in a park.