Box 1 Table I.

Traits used in predictive model, listed in order of importance.

Vector Traits:	Subgenus, continental range, number of viruses vectored, geographic area, larval habitat, habitat discrimination, biting time, host breadth, urban preference, anthropophily, endophily, artificial container breeder, permanent habitat, salinity tolerance
Virus Traits:	Year isolated, vector breadth, disease severity, host range, genome length, viral group, viral clade, host breadth, symptoms, vectored by other arthropods, mutated envelope