Wing venation
A) Longitudinal veins:
It includes the following:
a) Costa (C)
b) Subcosta (Sc)
c) Radius ( R)
d) Media (M)
e) Cubitus (Cu)
f) Anal veins (A1, A2, A3)
B) Cross veins:
It includes the following:
a) Humeral (h): It is the cross vein run between the costa and subcosta.
b) Radial (r): It connects R1 and the anterior branch of the radial sector.
c) Sectoral (s): It connects the longitudinal radius veins R3 and R4.
d) Radio-medial (r-m): It connects the posterior branch of the radius and the anterior branch of media.
e) Media (m): It connects longitudinal veins media M2 and M3.
f) Media-cubital (m-cu): It connects the posterior branch of media and the anterior branch of the cubitus.
g) Cubito- anal (cu-a): It connects the posterior branch of the cubitus and the first anal vein.
