Grasshoppers of Wyoming and the West

Entomology

Mormon Cricket Photos

Anabrus simplex Haldeman

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Anabrus simplex - First instar

Fig. 1, First instar Body Length 6-8.2 mm, Femur Length 4.2-4.5 mm, Length of Dorsal Valve of Ovipositor (DV) 0.2-0.3 mm.

 Anabrus simplex - Second instar

Fig. 2, Second instar BL 6.8-8.9 mm, FL 5.5-6.1 mm, DV 0.5-0.6 mm.
Anabrus simplex - Third instar

Fig. 3, Third Instar BL 10.6-13.3 mm, FL 7-7.7 mm, DV 1-1.2 mm.

 Anabrus simplex - Fourth instar

Fig. 4, Fourth Instar BL 12-14 mm, FL 8.8-9.6 mm, Ovipositor Length (OVP) 2.2-2.7 mm.
Anabrus simplex - Fifth instar

Fig. 5, Fifth Instar BL 16-19 mm, FL 10.2-11.6 mm, OVP 4.4-4.6 mm.

 Anabrus simplex - Sixth instar

Fig. 6, Sixth Instar BL 17.5-26 mm, FL 13.4-15 mm, OVP 9.7-11.1 mm.
Anabrus simplex - Seventh instar

Fig. 7, Seventh Instar BL 27-32 mm, FL 16.5-18 mm, OVP 19.5-22.5.

 Anabrus simplex - Adult Male

Fig. 8, Adult Male Body Length 39-43 mm, Femur Length 21.5-23 mm.
Anabrus simplex - Adult Female

Fig. 9, Adult Female with spermatophore BL 41-49 mm, FL 22-24 mm, OVP 27-30.

 Anabrus simplex - Eggs

Fig. 10, Five eggs dug from soil in habitat.

Figure 11. Paired cerci of male Mormon cricket, dorsal view. Drawing by Ashley B. Gurney.
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