Drepana arcuata – Arched Hooktip

Hodges # 6251

Caterpillar food: alder (Bugguide) and birch (Covell)

Larvae live in silk lined shelters on leaves that have the edge folded up.  When disturbed they are said to make a faint tapping noise.  Pupation within the folded leaf in a tough, pale brown cocoon. (Moths of Western North America)

Adults from the later generation – July and August – seem to be darker.  The ground color of their wings is dark yellow or brown, rather than the white or light tan of the earlier generation.

6/4/2008 – during the day on a grass stem

 

5/11/2017

 

5/16/2018

 

 

6/4/2017

 

8/13/2018

 

6/4/2016

 

7/21/2018

 

8/5/2017

 

7/3/2020 found on birch

 

7/3/2020

 

7/3/2020

 

7/4/2020

on Bugguide