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> > Marilia cases and pupae

Millcreek has attached these 2 pictures to aid in identification. The message is below.
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Cases about 9 mm.
Cases about 9 mm.
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Pupae about 7-8  mm.
Pupae about 7-8 mm.
MillcreekNovember 23rd, 2015, 10:45 am
Healdsburg, CA

Posts: 291
Thought I'd put these up in case anybody wanted to look at them. They're from this year, around August. The cases were found on medium to large cobbles in fairly calm areas.
"If we knew what it was we were doing, it would not be called research, would it?"
-Albert Einstein
PaulRobertsNovember 23rd, 2015, 12:41 pm
Colorado

Posts: 1750
Wow! Simply gorgeous.
CrepuscularNovember 23rd, 2015, 12:48 pm
Boiling Springs, PA

Posts: 896
Nice Mark.I've never seen that one here in PA only Psilotreta. Pretty sure we don't have the genus.
MillcreekNovember 24th, 2015, 10:13 am
Healdsburg, CA

Posts: 291
Paul,

Thanks. I saw these and couldn't resist the opportunity to record the different pupal stages.

Eric,

I'm sure you don't have the genus in PA. There are two species in the U.S. from what I understand. M. nobsca from Texas and M. flexuosa from California, Arizona, Texas and Arkansas.

Edit: A further look at range maps shows M. flexuosa in New Mexico, Oklahoma, Missouri, Indiana, Vermont and Ontario. And that's just as far as the U.S. and Canada are concerned, looks like it's common in Central and South America as well.
"If we knew what it was we were doing, it would not be called research, would it?"
-Albert Einstein

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