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Category Archives: Frass Collection
JimFrass CollectionOctober 12, 20200 Likes

KItty litter

Spilled kitty litter has been thought to reflect potential insect activity.

Here are pictures of cat litter, up close.

 

JimFrass CollectionOctober 15, 20190 Likes

36089 frass

 

 

 

JimFrass CollectionSeptember 26, 20190 Likes

Beetle frass from drawer

WDO inspector David Katosic bought an antique cabinet. A drawer had a fine powdery residue that appeared to be beetle frass. There were no boreholes in the furniture, and no dead beetles. It is possible that any dead beetles were consumed by carpet beetles. We deduce that there once may have been something in the drawer that had a beetle infestation. 9-25-19

 

Pictures of the frass:

 

 

JimFrass CollectionDecember 5, 20170 Likes

More drywood termite frass

Here is drywood termite frass from a house in Angles Camp, California. They were feeding in a kitchen cabinet area, and appeared to be a recent move-in.

5 December 2017. Specimens collected by Garrett Brouns.

 

 

JimFrass CollectionOctober 12, 20170 Likes

frass

Unidentified frass. Sonora California. 12 October 2017. Collected from basement, by Josh Esposito.

 

holes are about 1/8 inch diameter

holes are about 1/8 inch diameter

Frass visible inside exposed lumber

Frass visible inside exposed lumber

Frass visible inside exposed lumber

Frass visible inside exposed lumber

Exit holes

Exit holes

Millimeter scale. frass about 0.75 mm in length.

Millimeter scale. frass about 0.75 mm in length.

JimFrass CollectionApril 10, 20170 Likes

Frass of the California Tent Caterpillar

On 7 May 2016,  I retrieved a large caterpillar from a valley oak tree. I attempted to raise it, but the caterpillar died in the cocoon stage. Dr. Lynn Kimsey (thanks!) identified it as a Pacific tent caterpillar, Malacosoma constricta. It was a solo individual, and no netting or tenting was seen. Below are photos of the frass and the caterpillar. For image of moth, see this page.

Distribution Data for Malacosoma constricta

Distribution of the Pacific Tent Caterpillar

The frass crushed to reveal any detail of constituents.

The frass crushed to reveal any detail of constituents.

The frass crushed to reveal any detail of constituents.

The frass crushed to reveal any detail of constituents.

JimFrass CollectionMarch 16, 20170 Likes

Solitary bee frass

Collected by David Katosic, 16 March 2017. Apple Valley Estates, coming from behind exterior window trim.

Then, on 17 April 2017, David Katosic retrieved samples from within the window casing, and it was quite interesting. See below, IN THE NEST.

 

 


 

IN THE NEST

The nest was accessed. It appears we have  solitary bee nest. The interior of the nest itself had a mixture of pollen, larval frass, minerals used to construct the nest, and mites. We videoed the mites, and the link is at the bottom of this post.

This appears to be a pupa

This appears to be a pupa

mite

mite

pupa with what we think are larval frass attached

pupa with what we think are larval frass attached

 


JimFrass CollectionOctober 17, 20160 Likes

Vertebrate Droppings Under a House

This came from an enclosed subfloor in a house in Copperopolis. The animal has been eating a lot of beetles. Specimen collected by Ryder Richards, 10 October 2016.

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JimFrass CollectionJune 8, 20160 Likes

Drywood Termite Frass

Sample from Gold Springs, Columbia California, 8 June 2016. Collected by Garry Brouns.

Image224 Image234 Image233 Image232 Image231 Image230 Image229 Image228 Image227 Image226 Image225




More images of drywood termite frass (33318):

 

JimFrass CollectionApril 26, 20160 Likes

Unknown droppings

Click on an image to enlarge it.

frass_1 frass_2

Image157

The blue lines are millimeter markings

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The blue lines are millimeter markings

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