Just curious if anyone has a source with this info or has any records they kept themselves. I have seen listed in some books the number of broods or generations different species will have a year. These generations are staggered of course, but I'm just wondering about the earliest and latest dates for egg laying for the different species in different areas.
I am still finding monarch eggs as recently as a couple of days ago here near Chicago, but nothing else for quite some time. I had a big increase in male and female tiger swallowtails the last couple of weeks. I had hoped to find some eggs on my wafer ash or wild black cherry, but there were no takers. I don't know if it was just too late, or if the plants were not big enough for them?