If the equation $\cos ^ { 4 } \theta + \sin ^ { 4 } \theta + \lambda = 0$ has real solutions for $\theta$ then $\lambda$ lies in interval\\
(1) $\left( - \frac { 5 } { 4 } , - 1 \right)$\\
(2) $\left[ - 1 , - \frac { 1 } { 2 } \right]$\\
(3) $\left( - \frac { 1 } { 2 } , - \frac { 1 } { 4 } \right]$\\
(4) $\left[ - \frac { 3 } { 2 } , - \frac { 5 } { 4 } \right]$