Two of the gardeners at Brooklyn Bridge Park showed me the evidence of Viburnum Leaf Beetle that they were hunting down. The pits in the twig are egg cavities, dug into the tree by the mature beetle. The tiny larvae can just be seen.
The destructive invasive beetle is rampant through most city parks, but is so far kept at bay in BBP, which has multiple species of viburnum growing. Here’s what the damage looks like when it runs wild.
In early November, I found four adult Two-spotted Ladybeetles (Adalia bipunctata). And without looking very hard. I just stood under the tree and looked up.
This is some kind of Lacewing larva. It was found predating under the Catalpa leaves, where the ladybugs are still to be found, too, deep into October. On the rocks below the trees, a lady bug pupa.
These 2-spotted ladybug larvae were still active on Thursday. Time to pupate, kids!
Now, here’s something I’m not so sure about: Pupation and eggs generally seem to be set on leaves. These leaves will shortly fall to the ground, many to blow away to who knows where (into the harbor in some cases, in this situation). This seems a real chancy way of surviving the winter. Are there special end of season approaches to getting the genes through the cold months?
Female Twelve-spotted Skimmers (Libellula pulchella) seen on Staten Island and Brooklyn.
A male Common Yellowthroat (Geothlypis trichas), one of this year’s young. He was picking and pecking into that metal grill, which had collected leaves behind it, and hence some invertebrates.