Mosquito Taxonomic Inventory

Images:

Abbreviation:

VB

Definition:

Seta 4-X, usually a more or less linear series of irregularly paired setae borne posteroventrally on the midline of abdominal segment X; often divided into two groups, a posterior group of cratal or boss setae borne on a grid or boss, respectively, and an anterior group of precratal or preboss setae borne cephalad of the grid of boss, respectively.

Synonyms:

anal fan, anal fin, anal tuft, beard, brush, caudal fan, fan, fin, hair tufts, swimming fan, ventral beard, ventral caudal hairs, ventral caudal tuft, ventral fan, ventral fin, ventral hair fan, ventral hairs, ventral swimming brush, ventral tuft, vertical fin, tail-fan, tail-fin (see Table 15 in Harbach & Knight, 1980)