Fig. 1, First instar Body Length 4.2-5.2 mm, Femur Length 2.1-2.3 mm, Antennal Segments 13.
Fig. 2, Second instar BL 4.6-7.2 mm, FL 3-4.3 mm, AS 15-18.
Fig. 3, Third Instar BL 7.1-10.1 mm, FL 4.9-5.7 mm, AS 19-20.
Fig. 4, Fourth Instar BL 9.1-12.1 mm, FL 6.3-7.8 mm, AS 20-22.
Fig. 5, Fifth Instar BL 12-15 mm, FL 8.4-9.2 mm, AS 22-25.
Fig. 8, Distinctively black color of frontal ridge of nymphs.
Fig. 10, Melanoplus infantilis egg pod and several loose eggs.
Nymphs of Next Species in Subfamily: Melanoplus keeleri
Nymphs of Previous Species in Subfamily: Melanoplus gladstoni