9.8 mm. An unexpected visitor to the bug light -- whole new order. Quite pretty in macro, actually. But this is not the common indoor pest species. I'm fine with it as long as it stays outside!
Tags: silverfish Four-lined Silverfish Ctenolepisma lineatum Ctenolepisma Lepismatidae Zygentoma insect fauna yard mercury vapor lamp Highland Park NJ New Jersey August
Huge swarm of these down by the Susquehanna River bank at night. IDed as Ephoron leukon by Brady Richards on BugGuide -- only the 3rd BugGuide record of this sp, all from PA. They were so abundant I would have expected pages & pages of them on BugGuide -- but I guess there's a difference between abundance within a swarm and abundance of swarms.
Tags: mayfly Ephoron leukon Ephoron Polymitarcyidae Ephemeroptera insect fauna white Bainbridge Lancaster County PA Pennsylvania July male imago teneral
Huge swarm of these down by the Susquehanna River bank at night. IDed as Ephoron leukon by Brady Richards on BugGuide -- only the 3rd BugGuide record of this sp, all from PA. They were so abundant I would have expected pages & pages of them on BugGuide -- but I guess there's a difference between abundance within a swarm and abundance of swarms.
Tags: mayfly Ephoron leukon Ephoron Polymitarcyidae Ephemeroptera insect fauna white Bainbridge Lancaster County PA Pennsylvania July male imago
Mayfly male imago, body 9.4 mm long. I am grateful to Roger Rohrbeck on BugGuide for the ID; one of only 2 photos of this sp posted, as of 2014.
Tags: mayfly Anthopotamus verticis Anthopotamus Potamanthidae Ephemeroptera insect fauna male imago Bainbridge PA Pennsylvania August BugGuide:PA
ID by Roger Rohrbeck. 11 mm long.
Tags: mayfly Anthopotamus Potamanthidae Ephemeroptera insect fauna yard mercury vapor lamp Highland Park NJ New Jersey June male subimago