Netspinning Caddisfly

Moved

… Andrew Williams, 27 August, 2009 - 10:52am

Hydropsychidae

This looks more like Hydropsyche than Cheumatopsyche to me, but glare is obscuring the venation at the tip of the wing.

… Lloyd Gonzales, 26 July, 2009 - 12:10am

wing detail image posted

I just posted a closeup of the wing. I think the venation is more clear on this image. Thanks for the help on this.

… Andrew Williams, 26 July, 2009 - 8:59am

Thanks, Andy

The posture, wing shape, and venation appear typical of a hydropsychid to me. Your size estimate is likely oversize, but it does suggest that this is probably Hydropsyche (including the concept of Ceratopsyche as a subgenus). Cheumatopsyche are rather small (typically less than 10mm head to wingtip), although a clear view of the hindwings or ventral abdomen would provide a more definitive way to rule them out.

If you enlarge the front end of this specimen, the maxillary palps and the tibial spurs of the foreleg should be easier to see. (The foreleg tibia should have a very small pair of apical spurs, but no preapical spurs.)

… Lloyd Gonzales, 26 July, 2009 - 3:44pm

enlargement of head/antennae

If you can get an enlargement of the front end try and get an in focus area of the basal antennal segments. Hydropsychids may have a dark chevron mark on each segment and the basal segments will be relatively longer and thinner than the more globular polycentropodid segments.

… Dave Ruiter, 26 July, 2009 - 3:51pm

new front end picture

Hopefully I got the right parts in the new closeup. I may have overestimated the size of it in my earlier notes.

… Andrew Williams, 26 July, 2009 - 4:10pm

antennal segments look long

they don't look like polycentropodids. And I don't see evidence of the black chevron. If it is a hydropsychid it is probably Hydropsyche.

… Dave Ruiter, 26 July, 2009 - 4:16pm

Safe to move this to Hydropsychidae?

...or are you suggesting that this may belong to a third family that hasn't been mentioned?

… Charley Eiseman, 26 August, 2009 - 11:24pm

I agree it is Hydropsychid

but tough to tell genus

… Dave Ruiter, 27 August, 2009 - 10:34am

caddis [may be not a leptocerid, though]

Moved from ID Request.

… v belov, 24 July, 2009 - 1:31pm

thanks

Appreciate the help.

… Andrew Williams, 24 July, 2009 - 2:05pm

i'm sure you'll get a more specific ID from our experts

… v belov, 24 July, 2009 - 2:08pm

can't help much

perhaps a polycentropodid? what size is it?

… Dave Ruiter, 24 July, 2009 - 10:28pm

body with wings approx 2 cm, not counting antennae

I was not able to measure it. It flew after a couple of pictures. So this is going by memory.

… Andrew Williams, 25 July, 2009 - 10:10am

in such cases...

...you can always measure a stationary object caught in the frame -- say, the width of the grassblade, then accurately estimate the bug's size

… v belov, 25 July, 2009 - 10:47am

excellent tip

Thanks! The grass blade would have worked well this time.

… Andrew Williams, 25 July, 2009 - 10:59am