Unidentified Larvae and Pupae

Often arboreal (in trees), especially conifers.

Aphids, caterpillars, sawfly larvae, and other soft-bodied insects, especially in trees. Anatis larvae are large, and can attack larger prey than most other lady beetle larvae.

Adult Anatis are the largest lady beetles in North America, up to 10 mm long. Larvae can be twice as long as the adults. It's a relative measurement, especially with the middle instars (larval stages), but a mature larva will be noticeably larger than any other species you may have seen. Hatchlings are also relatively large, up to 5mm; most other species are 2mm or smaller at egg hatch.

Harmonia axyridis, Multicolored Asian Lady Beetle, has similar black and orange pattern and many spines, but the spines are double-branched (scoli). Does not have large orange marking on thorax.

Calvia quatourdecimguttata, Cream-spotted Lady Beetle, is black at egg hatch with unbranched spines, but does not have spines on pronotum. Older larvae are black and white, not black and orange.