Grasshoppers of Wyoming and the West
Entomology
Hayden Grasshopper
Derotmema haydeni (Thomas)
Fig. 1, First instar Body Length 3.8-4.7 mm, Femur Length 2.2-2.4 mm, Antennal Segments 13-14.
Fig. 2, Second instar BL 5.0-6.7 mm, FL 3.3-3.6 mm, AS 16-17.
Fig. 3, Third Instar BL 6.3-8.2 mm, FL 4.1-4.3 mm, AS 18-20.
Fig. 4, Fourth Instar BL 8.1-12.7 mm, FL 5.5-6.2 mm, AS 21-22.
Fig. 5, Fifth Instar BL 12-18.5 mm, FL 7.5-8.7 mm, AS 23-26.
Fig. 8, Paired rust spots on abdominal sterna and metasternum of nymphal instar 4.
Fig. 10, Derotmema haydeni egg pod and exposed eggs of another pod
Nymphs of Next Species in Subfamily: Dissosteira carolina
Nymphs of Previous Species in Subfamily: Chortophaga viridifasciata
