Sweltsa Larvae

Stark, Bill P., Kondratieff, Boris C., Kirchner, Ralph F. & Stewart, Kenneth W., 2011, Larvae Of Eight Eastern North American Sweltsa (Plecoptera: Chloroperlidae), Illiesia 7 (4), pp. 51-64 : 63

publication ID	https://doi.org/ 10.5281/zenodo.4760403
DOI	https://doi.org/10.5281/zenodo.4763377
persistent identifier	https://treatment.plazi.org/id/AF5E87AC-2C3D-FFBC-FF41-FA72FA003001
treatment provided by	Felipe
scientific name	Sweltsa Larvae
status

Treatment

Provisional Key to Eastern Nearctic Sweltsa Larvae View in CoL

( S. holstonensis and S. voshelli unknown)

1 Tibial fine fringe setae sparse and about half as long as median outer marginal seta ( Fig. 3 View Figs ) …… 2

1’ Tibial fine fringe setae more abundant and about as long as median outer marginal seta ( Fig. 23 View Figs ) 6

2 Metanotal wingpads with less than five intercalary setae ( Fig. 2 View Figs ) …………………………. 3

2’ Metanotal wingpads with at least 10 intercalary setae ( Fig. 37 View Figs ) ………………….…………………. 4

3 Tergum 10 bearing 2 intercalary setae ( Fig. 4 View Figs ) …………………………….…….….……… hoffmani View in CoL

3’ Tergum 10 without intercalary setae ( Fig. 29 View Figs ) …………………………………………….. palearata View in CoL

4 Tergum 10 bearing ca. 10- 12 intercalary setae in two lateral clusters ( Fig. 39 View Figs ) ……….…..… urticae View in CoL

4’ Tergum 10 usually with at most, two intercalary setae ( Fig. 9 View Figs ) ……………………….………..…… 5

5 Longest dorsal cercal setae on ca. segment 12 subequal in length to two cercal segments ( Fig. 10 View Figs ).…………………………………………. lateralis View in CoL

5’ Longest dorsal cercal setae about as long as 1.5 cercal segments ( Fig. 35 View Figs ) ..…………….. pocahontas View in CoL

6 Longest dorsal cercal setae about as long as 1.2-1.5 cercal segments ( Fig. 15 View Figs ) ………..……….. mediana View in CoL

6’ Longest dorsal cercal setae subequal in length to two cercal segments ( Fig. 25 View Figs ) ..………………….. 7

7 Abdominal terga dark brown, occiput about as dark as frons ( Fig. 21 View Figs ); meso and metanota rather densely covered with long, dark clothing hairs ……………………………………………..….. onkos View in CoL

7’ Abdominal terga pale brown, occiput almost entirely pale ( Fig. 16 View Figs ); meso and metanota with sparse brown clothing hairs …………………. naica View in CoL