The state's most important rivers are the Missouri, rising in southwest Montana and flowing north and then east across the state, and the Yellowstone, which crosses southeastern Montana to join the Missouri in North Dakota near the Montana border.
Habitats. Hoverflies can be found in every biotope but not in deserts. Each species tends to prefer a certain type of habitat and is limited to a distinct range within the country. There are relatively few species with broad habitat tolerances that enable them to be distributed throughout southern Africa.
Scientific name: Deilephila elpenor. Nocturnal, flying from dusk and coming to light, resting by day amongst its foodplants. It feeds from honeysuckle (Lonicera) and other tubular flowers on the wing. Adults seen between May and early August. This pink and olive-green moth is named after the caterpillarâs resemblance to an elephantâs trunk. The larva is usually seen when looking for somewhere to pupate, or when resting on stems in good weather, as it is very large, with noticeable eye markings.