Adult female ranging from gray to purple to green, without stripes; crystalline rods common over dorsal surface of body. Felted ovisac white to tan, enclosing adult female and 55 to 150 eggs. Occurring on subterranean crown or roots and on undersides of branches and leaves.
Acanthococcus dubius is similar to A. eriogoni Ehrhorn by having large sized enlarged setae covering the dorsum and more than 4 setae on the hind tibia. Acanthococcus dubius differs by having largest setae on dorsal surface of abdomen forming lateral, mediolateral, and medial longitudinal lines of seta (usually absent in A. eriogoni), enlarged setae straight or slightly curved and with pointed or slightly rounded apices (curved and rounded in A. eriogoni); front tibiae often with 6 setae (usually with 5 in A. eriogoni).
U.S. quarantine notes
This species was intercepted 3 times at U. S. ports-of-entry between 1995 and 2012, with specimens originating from Guyana, Honduras, and Mexico. We suspect that it has been intercepted much more commonly from the Caribbean area but has been identified as Acanthococcus sp. We also have examined specimens taken in quarantine from Mexico (cactus, Salvia). ScaleNet includes hosts in 11 plant families from the Nearctic and Neotropical (Brazil and Cuba) zoogeographic regions. No species of Acanthococcus other than A. araucariae (Maskell), A. coccineus (Cockerell), and A. dubius have been intercepted at a U. S. port-of-entry.