Corythucha
Guides
Corythucha juglandis
Walnut Lace Bug
Corythucha juglandis, the walnut lace bug, is a univoltine or bivoltine lace bug (Hemiptera: Tingidae) native to North America and specialized on walnut (Juglans) host plants. Adults overwinter in leaf litter and become active in April or May, synchronizing with host leaf phenology. The species aggregates on the undersides of leaflets for feeding and reproduction. Both adults and nymphs are gregarious. It has been studied in Ontario, Québec, Canada, and southern Illinois, USA, with some geographic variation in voltinism reported.
Corythucha spinosa
Corythucha spinosa is a species of lace bug in the family Tingidae. It has been documented in the Caribbean, Central America, and North America. Like other lace bugs in the genus Corythucha, it likely exhibits the characteristic flattened body and reticulated wing covers that give these insects their common name. Specific details regarding its host plants and biology remain limited in the available literature.