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Tracks & Sign of Insects and Other Invertebrates
Field Guide updates, additions, corrections. Ongoing...
( taxa covered )
1. Eggs and Egg Cases
2. Pupae and Exuviae
3. Parasitism, Predation, and Other Causes of Death
4. Sign on Vertebrates
5. Droppings, Secretions, and Protective Coverings without Foreign Materials
6. Webs and Other Silken Constructions
7. Cocoons
8. Coverings, Cases, Retreats, and Nests Made from Foreign Materials
9. Sign on Algae, Fungi, and Plants
10. Leaf Mines
11. Leaf Shelters
12. Galls
13. Sign on Twigs, Stems, and Stemlike Structures
14. Sign on and in Wood
15. Sign on Rocks and Shells
16. Burrows and Mounds
17. Molelike Excavations and Simple Surface Trails
18. Tracks and Trails
p. 151 The Andrena species that left this colorful deposit has been identified as A. crataegi. Click here to see the bee.
p. 151 The syrphid larva that left this tarlike smear has been identified as an Epistrophe species. Click here to see it.
p. 154 Correction: Although Drosophila sigmoides still appears to be a valid name, it evidently no longer applies to a spittlebug fly. The fruit flies associated with spittlebug spittle belong to the genus Cladochaeta, and you can download a 326-page monograph devoted to them here. (We have never successfully downloaded it, so let us know if you succeed!)
p. 156 Correction: The caterpillars that made these droppings were Haploa contigua, not H. confusa.

Images ©Charley Eiseman/Noah Charney