Seeing fewer spotted lanternflies? Experts say there may be a few reasons whyReports of spotted lanternflies are down in many areas, a noticeable change from recent years when the invasive insects appeared to be widespread. Reports of spotted lanternflies are down in many areas, a noticeable change from recent years when the invasive insects appeared to be widespread. Reports of spotted lanternflies are down in many areas, a noticeable change from recent years when the invasive insects appeared to be widespread. Reports of spotted lanternflies are down in many areas, a noticeable change from recent years when the invasive insects appeared to be widespread.