Sphagniana sphagnorum, the bog katydid, is the only species in the family Tettigoniidae (order Orthoptera) endemic to Canada.[1] It frequents black-spruce sphagnum bogs across the Canadian northwest from Ontario to the Yukon.[2] The two-part song of the males is remarkable among acoustic insects for alternating between two sound spectra: high audio sound frequencies are changed for ultrasonic frequencies every quarter second (Morris 1970). The forewings rub to and fro, drawing a scraper on one forewing along a row of teeth (file) on the other forewing and sending thin glassy wing cells into oscillation to radiate sound; two different regions of this file are used for the two spectra (Morris & Pipher 1972).
| Sphagniana sphagnorum | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Orthoptera |
| Suborder: | Ensifera |
| Family: | Tettigoniidae |
| Genus: | Sphagniana |
| Species: | S. sphagnorum
|
| Binomial name | |
| Sphagniana sphagnorum (Walker, 1869)
| |
| Synonyms | |
|
Metrioptera sphagnorum | |
References
edit- ^ Vickery, Vernon Randolph; Kevan, D. Keither McE (1983). A Monograph of the Orthopteroid Insects of Canada and Adjacent Regions. Vol. 1. Lyman Entomological Museum and Research Laboratory Memoir 13. p. 489.
- ^ Vickery, Vernon Randolph; Kevan, D. Keither McE (1983). A Monograph of the Orthopteroid Insects of Canada and Adjacent Regions. Vol. 1. Lyman Entomological Museum and Research Laboratory Memoir 13. Map 62.
- Morris G.K. 1970. Sound analyses of Metrioptera sphagnorum (Orthoptera: Tettigoniidae). Canadian Entomologist 102: 363-368.
- Morris G.K., Pipher R.E. 1972. The relation of song structure to tegminal movement in Metrioptera sphagnorum (Orthoptera: Tettigoniidae). Canadian Entomologist 104: 977-985.