Erannis tiliaria – Linden Looper

Hodges # 6665

Caterpillar foods: many woody shrubs & trees, including apple, ash, basswood, birch, cherry, elm, hazel, hickory, maple, oak, poplar, rose, willow (Wagner)

The adults fly very late in the fall – I’ve always seen them near the end of October.  I’ve seen them flying late in the day, with their wings catching the sunlight; and they’ve come at night, to my lighted sheet.  The ones I’ve seen are all males – females are wingless, and wait on tree trunks for the males to come to them.

According to both Wagner and Covell, numbers of this species vary a lot from year to year.  Usually their numbers are low, but once in a while their populations irrupt and can cause defoliation of trees.  One warm night near the end of October 2013 I saw 44 individuals at my lights – that’s the largest number I’ve seen at one time.

Wing color and patterns vary quite a lot from one individual to another.

10/21/2011

 

 

10/21/2011

 

10/21/2011

 

10/21/2011

 

10/21/2011

 

I’ve found the caterpillars a few times, but have never successfully raised one.

5/31/2009 on a young Burr Oak

 

6/8/2009  Caterpillar with leaf damage on Burr Oak

 

6/8/2009

 

10/5/2013  First of the season

Erannis tiliaria 9-5-13 1

 

10/30/2013

Erannis tiliaria 10-30-13 1

 

10/26/2013

Erannis tiliaria 10-26-13 1

 

10/16/2013

Erannis tiliaria 10-16-13 2

 

10/12/2013

Erannis tiliaria 10-12-13 2

 

10/12/2013

Erannis tiliaria 10-12-13 1