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National Moth Week photos of insects and people. Here's how to add your images.

Photos of insects and people from the 2019 BugGuide Gathering in Louisiana, July 25-27

Discussion, insects and people from the 2018 gathering in Virginia, July 27-29

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

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Family Abacionidae

Enormous Chordeumatid? - Abacion Creppy Crawler - Abacion Abacion? - Abacion Abacion? - Abacion Abacion texense?? - Abacion Abacion small milliped in kitchen sink - Abacion small milliped in kitchen sink - Abacion
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Myriapoda (Myriapods)
Class Diplopoda (Millipedes)
Order Callipodida (Crested Millipedes)
Family Abacionidae
Numbers
3 genera in 2 tribes:
Tribe Abacionini:
Abacion - 5 species
Tetracion - 3 species

Tribe Delophonini:
Delophon - 4 species
Size
Abacion - 2.5 to 5 cm
Tetracion - up to 8 cm
Delophon - 1.8 to 2.5 cm
Identification
Abacion - Large, dark brown millipedes. Six primary dorsal crests between pore crests starting on body ring 12.
Tetracion - Large, tan millipedes, limited to caves. Eyeless. Four primary dorsal crests between pore crests on all body rings.
Delophon - Small, dark brown millipedes. Fourteen primary dorsal crests between pore crests starting on body ring 12.
Range
Abacion - Eastern North America
Tetracion - Cumberland Plateau of Alabama and Tennessee
Delophon - Southeastern US, from Mississippi north to Virginia
Print References
Loria S, Zigler K, Lewis J (2011) Molecular phylogeography of the troglobiotic millipede Tetracion Hoffman, 1956 (Diplopoda, Callipodida, Abacionidae). International Journal of Myriapodology 5: 35–48. https://doi.org/10.3897/ijm.5.1891

Shelley RM (1979) A revision of the milliped genus Delophon with the proposal of two new tribes in the subfamily Abacioninae (Callipodida: Caspiopetalidae). Proceedings of the Biological Society of Washington 92: 533–550.

Shelley RM (1983) A new milliped of the genus Delophon from Missisippi (Callipodida: Caspiopetalidae). Entomological News 94: 11–14.

Shelley RM (1984) A synopsis of the milliped genus Abacion Rafinesque (Callipodida: Caspiopetalidae). Canadian Journal of Zoology 62: 980–988.

Shelley RM, McAllister CT, Hollis JL (2003) A new milliped of the genus Abacion Rafinesque, 1820 from Arkansas, U. S. A. (Callipodida: Abacionidae). Zootaxa 170: 1–7. https://doi.org/10.11646/zootaxa.170.1.1