how to have a reference to child generic type from a parent generic type?

here is the scenario

class MyClass1{

}

class MyClass2 extends MyClass1{

}

class Parent<T>{
 List<T> list;
}


class Child extends Parent<MyClass2>{
}

this doesn't compile

Parent<MyClass1> p = new Child();

this does

Parent<MyClass2> p = new Child();

why?

is there a way to refer via parent type?