[ncsc-moths] Re: Orthonama obstipata and Costaconvexa centrostrigaria comparison
- From: "J. Merrill Lynch" <jmerrilllynch@xxxxxxxxx>
- To: ncsc-moths@xxxxxxxxxxxxx
- Date: Tue, 17 Jan 2012 14:36:37 -0500
Lori,
Notice the pm band on the female Costaconvexa are distinct blackish and end
abruptly about halfway from the costa while on the male Orthonama the bands
are less distinct but extend all the way from the costa to the trailing
margin. It doesn't show well on the image but Orthonama male
forewings have a slight tannish background where both male and female
Costaconvexa are grayish.
Merrill
On Tue, Jan 17, 2012 at 2:03 PM, Lori Owenby <loriowenby@xxxxxxxxx> wrote:
> This is very interesting--thanks for sharing. Obviously a female
> Orthonama is a cinch but the males look a great deal like the female
> Costaconvexa to me. I guess that's why I had such a hard time
> figuring them out last week. I never conclusively named any of my
> photos as Orthonama . . . . so I guess that will put me at 12 moth
> species since January 1. Not a bad start to my "big year" considering
> I didn't think I'd get into the double digits until March!
>
> On Tue, Jan 17, 2012 at 12:43 PM, J. Merrill Lynch
> <jmerrilllynch@xxxxxxxxx> wrote:
> > There has been some discussion recently regarding the separation of
> > the very similar geometers, Orthonama obstipata (The Gem) and
> > Costaconvexa centrostrigaria (Bent-line Carpet). I was at Bo
> > Sullivan's house this past weekend looking at his collection and he
> > has a very nice series of both species, all collected in North
> > Carolina.
> >
> > In the attached image, the left column is Orthonama and the right is
> > Costaconvexa. The top two moths in each column are females and the
> > bottom two are males. This allows a side-by-side comparison
> > illustrating the wing maculation of both sexes of both species.
> >
> > Hope this will be helpful in separating the two in the field. Thanks
> > to Bo for giving me permission to share these specimens with you.
> >
> > Merrill Lynch
>
>
>
> --
> -----
> Lori Owenby
> St. Stephens/Riverbend Park Ranger
> Catawba County Parks
> Conover, NC
>
> "The Constitution only guarantees the American people the right to
> pursue happiness. You have to catch it yourself." ~Benjamin Franklin
>
>
--
J. Merrill Lynch
Echo Valley Farm
Watauga County, NC
Elevation: 3,400 feet
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