Summary ⁵

Nigronia fasciata is a megalopterous dark fishfly in the Corydalidae family. The typical size of N. fasciata is 22 to 28 millimeters, or 2.2 to 2.8 centimeters. The eggs can be found on the underside of leaves overhanging streams from May to early June. After hatching, the larvae fall into the stream. So, they can be found at the bottoms of small, sandy streams with few rocks, and feed on aquatic insects like Isopada and Caddisflies. The adults will eat nectar.
Nigronia fasciata looks similar to Nigronia serricornis. Sometimes N. serricornis has a wide, white stripe on the wing similar to N. fasciate. However, the N. serricornis has no brown spots on the stripe. N. serricornis also has no white stripe on the back, mid-wing.

Habitat and Range ⁶

The larvae are found in small, sandy streams with few rocks from May-June, earlier in southern regions. The species is found in 23 states, excluding those in the upper mid-west (and Canada).

Sources and Credits

1. (c) Matthew O'Donnell, some rights reserved (CC BY-NC-SA), https://www.flickr.com/photos/lycaenidae/8883104830/
2. (c) John Morgan, some rights reserved (CC BY-NC), uploaded by John Morgan
3. (c) bobkennedy, some rights reserved (CC BY-SA), uploaded by bobkennedy
4. (c) Bob Henricks, some rights reserved (CC BY-SA), http://commons.wikimedia.org/wiki/File:Hellgrammite,_Nigronia_fasciata_(7222779508).jpg
5. Adapted by Laura Dixson from a work by (c) Wikipedia, some rights reserved (CC BY-SA), https://en.wikipedia.org/wiki/Nigronia_fasciata
6. (c) Laura Dixson, some rights reserved (CC BY-SA)

More Info

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