Stonefly Species Sweltsa pocahontas (Sallflies)

Source: Larvae Of Eight Eastern North American Sweltsa (Plecoptera: Chloroperlidae)

Mature larva. Body length 8.5 - 9.0 mm. General color brown, without distinctive pigment pattern except underlying adult features in pharate individuals. Pronotum bearing ca. 16 anterolateral setae near margin and ca. 17 posterolateral setae (Fig. 31); both setal rows extend near median suture. Mesonotum bearing ca. 10 long outer marginal setae and an irregular submarginal row of ca. 6 setae beyond basal grouping (Fig. 32). Metanotum with numerous intercalary setae on wing pad and an outer marginal row of mostly short thick setae extending to apex of wing pad; a few inner marginal setae on mesonota and metanota. Fore femora with a sparse grouping of several fringe setae and a few long thick setae along dorsal margin (Fig. 33); additional thick setae on femoral surface and along ventral margin; fore tibiae fringed along outer margin and bearing three long outer setae and ca. 9 thick inner setae. Abdominal tergum 8 with posterior fringe incomplete mesally; lateral intercalary cluster includes ca. 12 setae (Fig. 34). Cerci with ca. 18 segments; long dorsal setae in apical segmental whorls about as long as 1.75 segments (Fig. 35).