Arilus

Arilus, or wheel bugs due to the semicircular crest on the pronotum, is a genus of true bugs in the family Reduviidae, subfamily Harpactorinae and tribe Harpactorini. Most species are found in the Americas. Arilus is a generalist predator of insects.

See North American wheel bug for details about a representative species.

Species
Five extant species plus one fossil species are included within this genus:
 * Arilus carinatus (Forster, 1771)
 * Arilus cristatus (Linnaeus, 1763) the North American wheel bug
 * Arilus depressicollis (Stål, 1859)
 * †Arilus faujasi Riou, 1999
 * Arilus gallus (Stål, 1872)
 * Arilus nigriceps Herrich-Schaeffer, 1848

Three additional species originally described in the genus are currently incertae sedis.
 * Arilus auctus Germar, 1837
 * Arilus collaris Herrich-Schaeffer, 1848
 * Arilus spiniceps Blanchard, 1843