Scolytogenes


Type species

Scolytogenes darwinii Eichhoff

Adapted from Wood 1982, p. 861-866


Diagnosis

North American Scolytogenes are distinguished from other related Cryphalina by having only one angulate septum on their near-circular to slightly obovate club.


Description

Species in this genus range from 0.8 to 1.9 mm in length and are 2.3 to 2.7 times as long as wide. Their color varies from brown to black. The pronotum is as long as wide, with a fine raised line on the lateral and basal margins, and armed in the anterior half. The scutellum is small. The declivity is convex with or without granules. The vestiture consists of short and light colored hair- and scale-like setae, which is erect in some species. The anterior margin of the compound eye varies from entire to emarginate. The scape is usually longer than the 4-segmented funicle. The oval to ovate club is large relative to its eye, and without sutures except for a septum that extends to the middle at an angle. The procoxae are contiguous.


Distribution

Florida, and Mexico to Venezuela


World fauna

Number of species: 100, Native species: 1, Introduced species: 0


Hosts

Calonyction, Candiosperma, Ipomoea, Serjania (for the only occurring species in the USA)