Taeniopterygidae
Creators: name: Stark, Bill P.
name: Hicks, Matthew B.
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Plecoptera
Taeniopterygidae

description: Key to Species of Mississippi Taeniopterygidae (Adults) 1 Tip of abdomen with an upright, probe-like epiproct, or sternum 9 prolonged and bent sharply upward near tip (Fig. 8) …….… Males (2) 1’ Tip of abdomen without probe-like structures or a greatly prolonged, bent process on sternum 9 ………………………………………..…. Females (7) 2 Cerci multisegmented; sternum nine prolonged beyond tip of abdomen and bent sharply upward near apex (Fig. 8) ………...… <i>Strophopteryx fasciata</i> 2’ Cerci one-segmented; sternum nine not prolonged (Fig. 10) …………….... <i>Taeniopteryx</i> (3) 3 Abdominal sternum nine bearing a vesicle (Fig. 10)..…………………………………………..….... 4 3’ Abdominal sternum nine without a vesicle …... 5 4 Hind femur bearing a prominent, acute spur at mid length (Fig. 12); paraprocts as in Fig. 18 … ……………………………………..…….... <i>T. maura</i> 4’ Hind femur bearing a low, rounded callus at mid length; paraprocts as in Fig. 13.....…….. <i>T. burksi</i> 5 Apical section of paraprocts, slender, acute and bent sharply outward near tip (Fig. 19) ……… <i>T. parvula</i> 5’ Apical section of paraprocts, broadly rounded or truncate and not hooked outward at tip (Figs. 15, 17) …………………………………………………. 6 6 Extruded aedeagus with small dorsal lobes, or dorsal lobes absent; cercal length greater than basal width (Fig. 16); outer margins of paraprocts apically expanded (Fig. 17) ………...… <i>T. lonicera</i> 6’ Dorsal lobes of extruded aedeagus similar to ventral lobes; cercal length subequal to basal width (Fig. 14); outer margins of paraprocts hardly expanded apically (Fig. 15) ….…..…. <i>T. lita</i> 7 Posterior margin of abdominal sternum 9 prolonged as a narrow, tongue shaped process extending over all, or much of sternum 10 (Fig. 9) …………………………….... <i>Strophopteryx fasciata</i> 7’ Posterior margin of abdominal sternum 9 not prolonged (Fig. 11) ………………. <i>Taeniopteryx</i> (8) 8 Subgenital plate of sternum 8 bearing a U-shaped margin (Figs. 21-22)..……………………….....… 9 8’ Subgenital plate bearing a V-shaped margin, or plate margin indistinct (Figs. 11, 20) …..……... 10 9 U-shaped margin of subgenital plate usually complete around anterior margin (Fig. 22) …………. <i>T. lonicera</i> 9’ U-shaped margin of subgenital plate usually with a small anteromedian notch (Fig. 21)..…... <i>T. lita</i> 10 V-shaped margin of subgenital plate dark and acute anteriorly, area lateral to V-margin usually pale (Fig. 23) ………………………..…… <i>T. parvula</i> 10’ V-shaped margin of subgenital plate usually incomplete or indistinct anteriorly, area lateral to V-margin usually lightly sclerotized (Figs. 11, 20) ………………………………….... <i>T. burksi, T. maura</i> (Larvae) Modified from Fullington &amp; Stewart (1980) 1 Coxae without gills; abdominal sternum 9 bearing a triangular, caudal projection ……………………. ………………………………... <i>Strophopteryx fasciata</i> 1’ Each coxa with a single, segmented or telescoping gill; abdominal sternum 9 without triangular projection ………………………… <i>Taeniopteryx</i> (2) 2 Dorsum of abdomen and thorax without median pale band ……………………………….. <i>T. parvula</i> 2’ Dorsum of abdomen and thorax with a median pale band ………………………………………….. 3 3 Mid-dorsal pale band bordered by dark brown pigment; abdominal terga armed with slender bristles of variable length ………………………… 4 3’ Mid-dorsal pale band without dark brown border; bristles on abdominal terga mostly long and curved ……………………………………...… 5 4 Last instar male larvae with spur evident on hind femora ………………………………….… <i>T. maura</i> 4’ Last instar male larvae without obvious spur on hind femora ……………………………… <i>T. burksi</i> 5 Body length of last instar larvae less than 7.6 mm ……………………………………..…..... <i>T. lonicera</i> 5’ Body length of last instar larvae at least 8.0 mm ………….......................................................… <i>T. lita</i>
description: Published as part of <i>Stark, Bill P. &amp; Hicks, Matthew B., 2009, The Taeniopterygidae Of Mississippi (Insecta: Plecoptera), pp. 85-98 in Illiesia 5 (9)</i> on pages 86-87, DOI: 10.5281/zenodo.4759521