One-generation-per-year
Guides
Dargida aleada
Wheat Head Armyworm
Dargida aleada is a noctuid moth known as one of the wheat head armyworms, a group of late-season pests of wheat in the Texas High Plains. The species belongs to a genus of 13 morphologically similar species whose larvae feed within wheat heads, damaging kernels primarily during the soft dough stage. Adults are medium-sized moths with yellow-brown forewings bearing a lengthwise brown stripe. The species has one generation per year, with larvae emerging in late May and June.
Hylurgopinus rufipes
Native Elm Bark Beetle
The native elm bark beetle is a small scolytine weevil and principal vector of Dutch elm disease in the northern Great Plains and prairie provinces of Canada. Adults are brownish-red, measuring 2.3–2.9 mm, and complete one generation annually. Overwintered adults emerge in spring to colonize weakened or dying American elm, constructing egg galleries in the inner bark where larvae feed on cambium tissue. The species exhibits distinctive acoustic communication: males produce simple multipulse calls, stress/rivalry chirps, and bimodal premating stridulation at gallery sites, while females do not stridulate. Males become strongly arrested at attractive female galleries and engage in brief contests with rival males shortly after a resident male establishes presence.