Subject: ID Please
Location: Western MA, USA
March 27, 2016 7:09 am
I have looked around quite a bit & keep coming up empty handed. For some reason I got “doodlebug” stuck in my head, however that does not seem correct.
It was having issues navigating climbing the stalks & leaves of the low-lying, plants that were stream side. I am not sure if it had just emerged or had some fermented fruit….
Taken 6/3/15 – Holyoke, MA – At a reservoir. I have not seen one since….
Your Dark Fishfly in the genus Nigronia is only represented on our site with a two postings so we are thrilled with your submission and your excellent quality images. Based on BugGuide images, we believe your individual is Nigronia fasciata. According to BugGuide: “Emergence of adults may be synchronized. Adults are diurnal (seen flying near streams) and also nocturnal, so come to lights. Eggs are laid on the underside of vegetation overhanging a stream. Larvae are aquatic, predatory. Perhaps take three years to mature in more temperate areas, such as West Virginia. Pupation occurs in earthen cells on the edge of streams.” It is possible that the flight time in various locations is so brief that if one is not looking at that time, it could be years between sightings.