Allusion #8 - Bastard of Venus

As You Like It Act 4 Scene 1

ROSALIND  No, that same wicked bastard of Venus that was begot of thought, conceived of spleen, and born of madness, that blind rascally boy that abuses everyone’s eyes because his own are out, let him be judge how deep I am in love. I’ll tell thee, Aliena, I cannot be out of the sight of Orlando. I’ll go find a shadow and sigh till he come.

This "bastard of Venus" spoken of by Rosalind is Cupid (which, when translated into Latin means love), the illegitimate son of Venus (Roman goddess of love and beauty) and Mars (Roman god of war). It is said that he carries a bow and a quiver of arrows with him, and should he pierce someone with one of these shafts, that person will fall madly in love. 
In the myth of Cupid and Psyche, Cupid tells his wife that she must never look at her face. In saying this, he is trying to hide his true identity. Of course, Psyche gives in to temptation and looks, realizing that he is not the monster he was said to be, but an extremely good-looking man. This is similar to Rosalind/Ganymede and Orlando. They are in a "relationship," (I'm talking about how Orlando courts "Ganymede" as if "he" were Rosalind) but "Ganymede" is hiding that "he" is truly Rosalind just as Cupid is hiding his identity; the only difference is that Cupid isn't pretending to be someone else.
Cupid and Rosalind also both have relatives who dislike the object of their affection so much they plotted some sort of revenge. Cupid's mother, Venus, resented Psyche because other mortals said she (Psyche) was more beautiful than her, so she ordered Cupid to go punish Psyche by giving her a certain potion. This is when Cupid fell in love. Rosalind's uncle doesn't like Orlando because he is the son of Sir Rowland De Boys. Instead of launching Cupid on him, however, he sends Oliver De Boys to get Orlando, not caring whether Orlando is dead when brought to him or alive.
Cupid made himself fall in love by accidentally cutting himself with one of his arrows. Rosalind's underlying message is that she loves Orlando so much she has probably been stabbed with an arrow too, and since her and Cupid's relationships are similar, her love for Orlando is worthy of the god of love.*

*Venus is a goddess, which is different than a god.