Agenodesmus reticulatus is a species of millipede in the family Fuhrmannodesmidae,[1] which some authorities consider a junior synonym of Trichopolydesmidae.

[5] This species is notable as the first polydesmidan millipede discovered with only 18 segments in adults, the smallest number recorded in the order Polydesmida.

Loomis first described the genus Agenodesmus and its type species A. reticulatus in 1934 based on these specimens.

[6] The male holotype is deposited in the National Museum of Natural History in Washington, D.C.[7][8] A closely related species with only 18 segments in adults, Hexadesmus lateridens, was discovered in Cuba in 1931, with Loomis finding additional specimens in Saint Kitts and Carriacou in 1932.

[6] This millipede is notable not only for featuring only 18 segments in adults but also for its tiny size.

[6] The dorsal surface of the body features transverse rows of markedly clavate setae but no tubercles.

The first segment has an oval shape, about twice as wide as long, with a broad transverse depression in the middle.

[7][6] The two species of Agenodesmus may be distinguished from one another by not only their sizes but also the ozopores on the dorsal surface of their body segments.

[8] The small size of this millipede makes this species likely to be transported in soil undetected and spread inadvertently by humans.