Abstract
Cyphoderris strepitans Morris & Gwynne (Haglidae) is a cricket-like insect occurring in sagebrush habitats in Grand Teton National Park. The males of this primitive orthopteran produce sounds by rubbing together stridulatory structures located on their forewings (Morris & Gwynne 1978). They emerge from the litter beneath the sage shortly after sunset, climb into the bushes and begin to call; matings take place in sage bushes or on the ground some time thereafter (Dodson et al. 1983).