Mt. Talbot, Woodbury County, Iowa, USA
August 7, 2014
Size: 3 mm
August 3, 2014: collected 2 Caliscelidae on a Loess Hills prairie remnant, both had Dryinid thylacia
August 5, 2014: one hopper was dead
August 7, 2014: found this larva dead on a piece of grass in the rearing jar
Frederick W. Stehr, Immature Insects
: "Small larvae not exceeding 5 mm in length, body U shaped, whitish...Head: Very large, at least half as high as maximum height of body (lateral view), distinctly prognathous...anterior part of head capsule with several to many large, curved setae...Mouthparts: Large, occupying a considerable part of the total area of the head. Labrum transverse, rounded apically, bearing numerous long, curved setae close to the apical margin and with many small, slender spinules. Mandibles tapering from a wide base, usually somewhat pigmented apically, simple or denticulate."
This is NOT the same individual hopper but it is the same species as was host to the above larva.
Larva has similar mouth parts as this: