The hyaline edge along the marginal band is narrow but widens to fill the end of the sub-marginal cell; the cubital band is strongly united.
The same streaks can be found along the cubital vein and radial veins and on the vertex, close to the eye.
The hindwings are grey-brown with a darkly bordered termen and a dark spot near the cubital veins.
The nerve enters the cubital fossa medial to the brachialis tendon and passes between the two heads of the pronator teres.
Blood is most commonly obtained from the median cubital vein, which lies within the cubital fossa anterior to the elbow.
In nymphal wings, its trachea arises between the cubital trachea and the group of vannal tracheae.
The forewings are dull dark grey with a lighter cubital vein and discal spot.
At the cubital fossa, this nerve is deep to the pronator teres muscle and is the most medial structure in the fossa.
