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Post by takahe on May 2, 2011 22:42:30 GMT -8
This one is pretty small for a cerambycid - 7mm long. Collected in Fond du Lac Wisconsin in 2002.
Bradleigh
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Post by thanos on May 2, 2011 23:45:58 GMT -8
An Acanthocinini. Genus Astylopsis. Possibly Astylopsis sexguttata.
This is my best guess from this dark photo which I'm trying to examine.
Thanos
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Post by takahe on May 3, 2011 2:51:27 GMT -8
Yes, I apologize for the bad pic. I think I will try taking another photograph of this one, with different lighting. I'm finding it difficult to get very clear pics of these smaller specimens, they come out either too light or to dark.
Bradleigh
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Post by prillbug2 on May 3, 2011 5:36:37 GMT -8
Astylopsis collaris (Haldeman). Oh, and Brad, arrange the data labels so that they are lengthwise with the body. The short end should be at the head.
Jeff Prill
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Post by takahe on May 3, 2011 21:06:20 GMT -8
Yes, I am in the process of fixing labels as well. Some, especially the specimens collected by people other than myself, are handwritten and I am doing them over on my computer so they will be smaller, easier to read and less obtrusive. To take photos I think they really should be temporarily removed.
Again I really do appreciate all the help on these.
Bradleigh
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Post by prillbug2 on May 4, 2011 17:12:07 GMT -8
Okay, here's a key in case we're both wrong. Key to the genus Astylopsis of Northeasern NA.
1. Elytra lacking black vittae at side. 2.
---Elytra with black vittae at sides extending from humeri almost to apex; apical 1/3 brown. 1. A. arcuata (LeConte)
2(1). Elytral brownish spots or tubercles, without back tufted tubercles. 3
----- Elytra with black tufted tubercles especially on basal gibbosities; disk coarsely, densely punctate; pubescence mottled grayish, brownish, and black. 2. A. sexgutta (Say)
3(2). Elytra without distinct whitish, transverse macula behind middle: pronotum not contrastingly pubescent. 3. A. collaris (Haldeman)
------Elytra with transverse whitish fascia behind middle; prominent whitish pubescent at sides. 4. A. macula (Say).
Tell us what you find out. My thinking is that it's Astylopsis macula. But A. sexguttata is possible, and A. collaris is also within reason. But because of the dark photograph, it's difficult to tell precisely. I'll give you species descriptions when you do to check yourself out.
Jeff Prill
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