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Grasshoppers of Wyoming and the West


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..

Top of the Fact Sheet


Adults of D. haydeni

Nymphs of Next Species in Subfamily: Dissosteira carolina

Nymphs of Previous Species in Subfamily: Chortophaga viridifasciata

List of Species Fact Sheets

Field Guide Contents

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Phone: (307) 766-2508


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