Velum: a membranous appendage of the spurs at the apex of anterior tibia in bees a broad process at inner end of fore tibia.
Velum penis: the thin membranous covering of the male intromittent organ also applied to ether covering or shield-like structures of the penis.
Velutinous: velvety: clothed with dense, soft, short hair, like velvet.
Vena: a vein.
Vena dividens: that longitudinal vein of secondaries that marks the beginning of the anal area: = anal 1 (Comst.).
Vena plicata: on the wings of Dermaptera, the vein around which the folding occurs.
Vena spuria: = spurious vein: q.v.
Venation: the system of chitinous frame-work supporting the wings: in Lepidoptera, the veins are usually referred to by numbers which are as follows: on primaries: 1 = anal; 2 = cubitus 2; 3 = cubitus 1: 4 = media 3; 5 = media 2; 6 = media 1; 7 = radius 5; 8 = radius 4; 9 = radius 3; 10 = radius 2; 11 = radius 1; 12 = subcosta: on secondaries: 1, 1a, 1b = anal; 2 = Cubitus; 3 = cubitus 1; 4 = media 3: 5 = media 2; 6 = media 1; 7 = radius 1; 8 = subcosta. See plate III for typical venations of all orders.
Venter: the belly: under surface of abdomen as a whole and of each ring.
Ventose: inflated; puffed out.