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Archive for month: September 2020
JimWeedsSeptember 29, 20200 Likes

Telegraphweed

Steve Deaver collected this telegraphweed from a job site in Wallace, Calaveras County, Ca.

We took some microscope pictures to examine the structure. The oil appears to be extruded from the main stem and leaves, where it mostly remains (as opposed to being on the ends of hairs). We found one mite (see video), and an insect, shown at the bottom.

 

 

Small wasp that fell off the specimen of Telegraphweed.

Small wasp that fell off the specimen of Telegraphweed.

leaf of telegraphwed

leaf of telegraphwed

Lacebug nymph.

Lacebug nymph.

Lacebug nymph.

Lacebug nymph. (thanks to Dr. Lynn Kimsey for ID)

 

JimPhotosSeptember 28, 20200 Likes

Brown lacewings found on windowsill

Brown Lacewing specimens collected by Joel Williams, Twain Harte, California, 28 September 2020.

Thanks to Dr. Lynn Kimsey for the ID.

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JimBotanical ObservationsSeptember 25, 20200 Likes

Thrips on Tarweed Flowers

Steve Deaver brought in a sample of tarweed from Valley Springs. We examined it under the microscope. Thrips were common, particularly on the flowers.

 

 

JimPhotosSeptember 15, 20200 Likes

Fruit Fly

Fruit Fly.  Shawmut Road, Chinese Camp area.

15 September 2020.

Specimen collected by Ryder Richards

 

JimInsects and related pestsSeptember 11, 20200 Likes

Alate Queens of Lasius

Branden Runyan brought these specimens from a customer’s house in Dorrington.

Dr. Philip Ward identified then as alate queens, in the subfamily Formicinae, probably a species of Lasius.

11 September 2020

 


 

 

 

JimPhotosSeptember 9, 20200 Likes

The Comanche Green Lacewing

9 September 2020

Angela Cordes found this tiny insect on her sleeve while sitting on a bench under a tree near our office. I asked Dr. Catherine Ann Tauber what the species might be (especially since we are looking for that possible lacewing species).

She said it is the “larva of Chrysoperla comanche – an unappreciated biological control agent in western USA, northern Mexico.  It feeds on a variety of insect pests – e.g., aphids, scales, lepidopteran eggs, etc., and it is better in warm and dry habitats than other lacewings.   It does not carry trash on its back, and it has never been reported to be associated with ants. It is not related to the earlier larvae with large trash packets. BTW: Chrysoperla formerly was in Chrysopa, but it now is recognized as different.”

 

 

 

 

 

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