In a large pot of boiling salted water, cook pasta according to package instructions; drain well.
In a large bowl, whisk together olive oil, red wine vinegar, Dijon, garlic and sugar; season with salt and pepper, to taste.
Stir in warm pasta; let cool 20 minutes, stirring occasionally.
Stir in tomatoes, cucumber, bell pepper, salami, feta, red onion, olives, dill and parsley; season with salt and pepper, to taste.
Cover and chill, if desired.
Stir in arugula. Serve immediately.
