transcontinental in the north (LB‒NT‒AK south to GA‒AR in the east, to CO‒CA in the west)(2)
Print References
Ring R.A., Tesar D. (1980) Cold-hardiness of the Arctic beetle, Pytho americanus Kirby Coleoptera, Pythidae (Salpingidae). J. Insect Physiol. 26: 763–774 (Full text)