The taxiles skipper (Poanes taxiles) oviposits on most any large-bladed grasses. Here in Northern Utah, I like to use Bromus inermus. Found in moister, shadier areas of mountain canyons, this grass works well in the lab; both to entice females to lay eggs; but also to feed larvae. Many hesperine skippers, eventhough specialists in the field, can be generalists in the lab. (I.e, they will oviposit and feed on many grasses.)