My Tulane colleague Rebecca Hazen and I are working with the Smithsonian's Don Davis to characterize the geographic range and genetic diversity of a particular Gracillariid moth, in genus
Caloptilia. Dr. Davis is working on a formal description of the species, but as of this moment it is still unnamed. This moth is of particular interest as one of the few resident insects which feeds extensively on the noxious and invasive
Chinese Tallow tree. Dr. Davis has been working with specimens collected in Florida, while Rebecca and I have just found it here in Louisiana. I was startled and very gratified to see that this moth has already been in the BugGuide for two years! Graham Montgomery submitted a photo of it from Texas back in 2007, which is the first report of it in that state that we are aware of:
If tallow exists in your area, this tiny moth should be fairly straightforward to find by looking for its very distinctive pattern of leaf damage: the early instar caterpillars are leaf miners, and the later instars cut and roll the margin of the leaf into a perfect rosette, inside of which they will pupate. If you would like to help, we ask that you keep an eye out for these caterpillars, and rear them out (easily accomplished by placing the leaf-rolls into a gallon plastic bag along with one or two additional tallow leaves) and send us the adults that emerge. Rebecca will be using the specimens for a genetic study, and we will mount voucher specimens from each locale and send them up to Dr. Davis at the Smithsonian. If you are unwilling to kill a moth, you can still contribute to this project by photographing the leaf damage, rearing the adults in a bag, and photographing the moth before you release it. Then post the images to the guide along with the precise location of the collection site.
I think that our nationwide community of insect lovers can be a powerful tool for research, whereby a lot of ground can be covered with a minimum of expense and time. I hope that you will keep an eye out for these critters, you'll be striking a blow for science (and helping out some poor graduate students). If you have any questions about our project, please post them, or feel free to email me directly. Thanks for all your help, past and future.