Dec 29, 2022
oak lacebug (Corythucha arcuata) eggs and emerging nymphs
seen from United States
seen from Finland
seen from Yemen
seen from Hong Kong SAR China
seen from Russia
seen from China
seen from United States
seen from China
seen from Russia
seen from United Kingdom
seen from Italy
seen from Italy
seen from Malaysia
seen from Hong Kong SAR China
seen from Netherlands
seen from Japan
seen from Netherlands
seen from China
seen from Singapore
seen from Thailand
oak lacebug (Corythucha arcuata) eggs and emerging nymphs
#1835 - Corythucha ciliata - Sycamore Lace Bug
A serious infestation of Sycamore Lace Bugs in Rockingham, Perth.
Corythucha ciliata (Fam. Tingidae) is native to North America, but was accidentally introduced to Europe and spread rapidly, and is now a problem in Australia as well. They feed on Sycamore and Plane trees, but are also found on Ash, Liquidambar, and a variety of other trees.
The insects suck plant juices from the underside of the leaves, and the upper surface of the leaf is increasingly speckled with white at first near the veins, until the leaf becomes progressively paler or bronzed and may fall early. In warm weather the insects can grow from egg to adult in 44 days, and can easily survive winter temperatures below -24C.
They may be vectors of at least two plant diseases, but they also bite humans and have been proven to suck human blood - a very peculiar jump in diet. Bites may result in small, painful welts.
Comparison of Tingids by Oregon Department of Agriculture Via Flickr: Comparison of Tingids