Thysanoes


Type species

Thysanoes fimbricornis LeConte

Adapted from Wood 1982, p. 557-569


Diagnosis

Thysanoes can be distinguished from Pseudothysanoes Blackman by the longer than wide pronotum and by the presence of antennal sutures in all species.


Description

Species in this genus range from 1.2 to 2.3 mm in length and from 2.3 to 3.0 times as long as wide. Their color varies from yellowish brown to black. The usually longer than wide pronotum is asperate on its anterior half. The scutellum is small. The declivity is convex, and it has granules on some species. The vestiture consists of erect scale-like setae, is wider apically, and more abundant on the declivity and at the anterior half of the pronotum. The anterior margin of the compound eye is entire. The scape is longer than the 6-segmented funicle and is ornamented by long hair. The oval club has two procurved sutures and can bear long hair as well. The procoxae are separated.


Distribution

Canada to Costa Rica


World fauna

Number of species: 15, Native species: 7, Introduced species: 0


Hosts

Acacia, Acer, Berberus, Berchemia, Carya, Castanea, Celtis, Gleditsia, Quercus, Mimosa, Morusrubra, Prosopis, Rhizophora, Ulmus