I recently posted about a report of Lime Green Hawkmoth in Illinois. Now that I have a picture, I can say that the markings appear to be that of the Pandora Sphinx and are definitely not Lime Green Hawkmoth.
The Pandora Sphinx was first described in North America in 1802. Caterpillars feed on the leaves of grape. Like many hawk moths, the Pandora Sphinx can be seen at night hovering about flowers in the tobacco family such as nicotiana and petunia. The Pandora Sphinx is a large impressive moth. 2010 has been a banner year for Lepidoptera in Northern Indiana. I have seen larger numbers of hawk moths this year than in previous years.
Pandora Sphinx. Submitted photo.
While the basic color motif is similar between the Lime Green Hawk Moth and the Pandora Hawk moth, the patterns are different. The Pandora Hawk Moth has the characteristic pink lines on the veins and pink stripes on the inner hind wing.
Update: 9/15/10 The local news brought a Pandora Sphinx to the department today asking about it being an invasive. Perhaps the large numbers of sightings means that the populations are larger than previous years?