Ecclisomyia, Banks, 1907

Givens, Donald R., 2018, The Nearctic Ecclisomyia species (Trichoptera: Limnephilidae), Zootaxa 4413 (2), pp. 201-259 : 256-257

Keys to western North American species of Ecclisomyia

Males

1. Inferior appendages each without single black basal spine or mesal stout spines; phallus with pair of distinct sclerotized ventral parameres hooked distally ( Figs 1a , 2a )...................................................... E. bilera Denning

- Inferior appendages each with single black basal spine or stout mesal spines ( Figs. 10a, 10b , 11b , 22b , 23b , 30b , 31b ); phallus with distinct pair of sclerotized parameres rounded distally ( Fig. 11a ), or with fused parameres ( Figs. 23a , 31a )........... 2

2. Inferior appendages each with stout mesal spine ( Figs.10a , 11b ); phallus with pair of elongate parameres, rounded distally ( Figs. 11a )............................................................................ E. conspersa Banks

- Inferior appendages each with 2 or more stout, mesal spines; phallus with shorter and fused parameres ( Figs. 22a, 22b , 23a, 23b , 30a, 30b , 31a, 31b )................................................................................ 3

3. Apex of fused parameres with shallow U-shaped mesal indentation; inferior appendages long, lateral sides nearly parallel in ventral view ( Figs. 22b , 23b )............................................................. E. maculosa Banks

- Apex of fused parameres with deep U-shaped mesal indentation; inferior appendages short, lateral sides indented basally in ventral view ( Figs. 30b , 31b ).............................................................. E. simulata Banks

Females

1. Distal margin of tergum X in ventral view with shallow mesal indentation ( Figs. 12 , 13a ); spermathecal sclerite narrow and long ( Fig. 13a )........................................................................ E. conspersa Banks

- Distal margin of tergum X in ventral view with V-shaped incision ( Figs. 3c , 4a, 4c , 24c , 25b , 32a, 32b ); spermathecal sclerite short, rounded, or quadrate ( Figs. 4a , 25b, 25c , 32b ).......................................................... 2

2. External gonopod of segment VIII longer than wide, its distal margin with shallow concave V-shaped indentation; external gonopod of segment IX broadly concave, without posteriorly directed lobes ( Figs. 3b , 4a ); spermathecal sclerite rounded ( Fig. 3b , 4a )................................................................................ E. bilera Denning

- External gonopod of segment VIII at least as wide as long, distal margin with V-shaped incision ( Figs. 25b ), convex ( Fig. 24c ), straight ( Fig. 25c ), or slightly concave ( Fig. 32a ); external gonopod of segment IX with deep V-shaped incision, with posteriorly directed lobes ( Figs. 24c , 25b, 25c , 32a, 32b ); spermathecal sclerite quadrate (Figs, 24c, 25c, 32a, 32b).............. 3

3. External gonopod of segment IX long, narrow, deeply cleft extending posterad about 2 X its width beyond caudal margin of external gonopod of segment VIII ( Figs. 24c , 25b, 25c ); distal margin of tergum X in ventral view with V-shaped incision for about 3/4 length of tergite ( Figs. 24c , 25b, 25c ).............................................. E. maculosa Banks

- External gonopod of segment IX short, wide, with V-shaped incision, only extending posterad 1 X its width beyond caudal margin of external gonopod of segment VIII ( Figs. 32a, 32b ); distal margin of tergum X in ventral view with deep V-shaped incision for about 1/2 length of tergite ( Figs. 32a, 32b ).......................................... E. simulata Banks

Pupae

1. Apical processes each straight, directed caudad, with 3 long, stout black setae at apex ( Figs. 15a, 15b , 16a, 16b, 17a, 17b); lat- eral line gills on segments IIp–IVa ( Fig. 42 )................................................. E. conspersa Banks

- Apical processes of females curved mesad, of males sometimes straight ( Figs. 33a, 33b ); each with 2 long stout black setae at apex ( Figs. 5a, 5b , 6a, 6b , 7a , 7b , 26a, 26b 27a, 27b , 28a , 28b , 33a, 33b , 34a, 34b , 35a, 35b); without lateral line gills ( Fig. 42 ).................................................................................................... 2

2. Abdominal segment VII without dorsoanterior or ventroanterior gills ( Fig. 42 )...................... E. maculosa Banks

- Abdominal segment VII with dorsoanterior and ventroanterior gills............................................. 3

3. Dorsal abdominal segment II with anterior gills ( Fig. 42 )........................................ E. simulata Banks

- Dorsal abdominal segment II without anterior gills ( Fig. 42 )..................................... E. bilera Denning

Larvae

1. Head, thoracic sclerites uniformly dark brown, without mesal yellow striping....................... E. bilera Denning

- Head, thoracic sclerites with mesal yellowish striping........................................................ 2

2. With lateral line gills on segments IIp–IVa ( Fig. 42 )........................................... E. conspersa Banks

- Without lateral line gills ( Fig. 42 )........................................................................ 3

3. Without anterior gills on dorsal and ventral abdominal segment VII; generally lacking dorsoanterior gills on abdominal seg- ment II ( Fig. 42 )....................................................................... E. maculosa Banks

- With anterior gills on dorsal and ventral abdominal segment VII; with dorsoanterior gills on abdominal segment II ( Fig. 42 )....................................................................................... E. simulata Banks

Figures

FIGURES 1a–1c. Ecclisomyia bilera Denning, male genitalia. 1a, left lateral; 1b, ventral; 1c, dorsal; Abbreviations: ifa = inferior appendage (paired); ima = intermediate appendage; IX = segment IX; par = paramere (paired); phcr = phallocrypt; pl = pleuron (paired); sa = superior appendage (paired); VIIIs = sternum VIII; VIIIt = tergum VIII; IXt = tergum IX; Xt = tergum X.

FIGURES 2a–2c. Ecclisomyia bileraDenning, male genitalia.2a, left lateral; 2b, left caudodorsal; 2c, ventral; Abbreviations: ifa = inferior appendage (paired); ima = intermediate appendage; IX = segment IX; par = paramere (paired); ph = phallus; phcr = phallocrypt; pl = pleuron (paired); sa = superior appendage (paired), VIIIs = sternum VIII; VIIIt = tergum VIII; Xt = tergum X.

FIGURES 3a–3c. Ecclisomyia bilera Denning, female genitalia. 3a, left lateral; 3b, ventral; 3c, dorsal. Abbreviations: e.gon.VIII = external part of gonopod VIII; e.gon.IX = external part of gonopod IX; IXt = tergum IX; pl = pleuron (paired); spt.sc = spermathecal sclerite;ssc.o = spermathecal sclerite opening;VIIIs = sternumVIII; VIIIt= tergum VIII;Xt = tergum X.

FIGURES 4a–4c. Ecclisomyia bilera Denning, female genitalia. 4a, ventral; 4b, left lateral; 4c, dorsal. Abbreviations: e.gon.VIII = external part of gonopod VIII; e.gon.IX = external part of gonopod IX; spt.sc = spermathecal sclerite; ssc.o = spermathecal sclerite opening; VIIIs = sternum VIII; Xt = tergum X.

FIGURES 5a, 5b. Ecclisomyia bilera Denning, male pupa, apical processes.5a, dorsal; 5b, ventral. FIGURES 6a, 6b. Ecclisomyia bilera Denning, male pupa, apical processes.6a, dorsal; 6b, ventral.

FIGURES 6a, 6b. Ecclisomyia bilera Denning, male pupa, apical processes.6a, dorsal; 6b, ventral.

FIGURES 7a, 7b. Ecclisomyia bilera Denning, female pupa, apical processes. 7a, dorsal; 7b, ventral.

FIGURES 10a–10c. Ecclisomyia conspersa Banks, male genitalia. 10a, left lateral; 10b, ventral; 10c, dorsal. Abbreviations: ifa= inferior appendage (paired); ima = intermediate appendage; IX= segment IX; par = parameres (paired); ph = phallus; phcr = phallocrypt; pl = pleuron (paired); sa = superior appendage (paired); VIIIs = sternum VIII; VIIIt = tergum VIII; Xt = tergum X.

FIGURES 12. Ecclisomyia conspersa Banks, female genitalia, ventral. Abbreviations: e.gon.VIII = external part of gonopod VIII; e.gon.IX = external part of gonopod IX; spt.sc = spermathecal sclerite; ssc.o = spermathecal sclerite opening; VIIIs = sternum VIII; IXs = sternum IX; Xt = tergum X.

FIGURES 15a, 15b. Ecclisomyia conspersa Banks, male pupa,apical processes.15a, dorsal; 15b, ventral. FIGURES 16a, 16b. Ecclisomyia conspersa Banks, male pupa,apical processes.16a, dorsal; 16b, ventral.

FIGURES 25a–25c. Ecclisomyia maculosa Banks, female terminalia. 25a, left lateral; 25b, ventral; 25c, ventral. Abbreviations: e.gon.VIII = external part of gonopod VIII; e.gon.IX = external part of gonopod IX; spt.sc = spermathecal sclerite; ssc.o = spermathecalsclerite opening; VIIIs = sternum VIII; IXs =sternum IX; Xt = tergum X.

FIGURES 26a, 26b. Ecclisomyia maculosa Banks, male pupa, apical process.26a, dorsal; 26b, ventral.

FIGURES 27a, 27b. Ecclisomyia maculosa Banks, male pupa, apical process.27a, dorsal; 27b, ventral.

FIGURES 28a, 28b. Ecclisomyia maculosa Banks, female pupa,apical process.28a, dorsal; 28b, ventral.

FIGURES 30a–30c. Ecclisomyia simulata Banks, male genitalia. 30a, left lateral; 30b, ventral; 30c, dorsal. Abbreviations: ifa = inferior appendage (paired); ima = intermediate appendage;IX = segment IX; par = paramere (fusedpair); ph = phallus; phcr = phallocrypt; pl = pleuron (paired); sa = superior appendage (paired); VIIIs = sternum VIII; VIIIt = tergum VIII; Xt = tergum X.

FIGURES 31a–31c. Ecclisomyia simulata Banks, male genitalia. 31a, left lateral; 31b, ventral; 31c, dorsal. Abbreviations:ifa = inferior appendage (paired); ima = intermediate appendage; IX = segment IX; par = parameres (fused pair); ph = phallus; phcr = phallocrypt; sa = superior appendage (paired); VIIIs = sternum VIII; VIIIt= tergum VIII; Xt = tergum X.

FIGURES 32a–32c. Ecclisomyia simulata, female genitalia. 32a, ventral; 32b, ventral; 32c, left lateral. Abbreviations: e.gon.VIII = external part of gonopod VIII; e.gon.IX = external part of gonopod IX; spt.sc = spermathecal sclerite; ssc.o = spermathecal sclerite opening; VIIIs = sternum VIII; IXs = sternum IX; Xt = tergum X.

FIGURES 33a, 32b. Ecclisomyia simulata Banks, male pupa, apical process. 33a, dorsal; 33b, ventral.

FIGURES 34a, 34b. Ecclisomyia simulata Banks, male pupa, apical process. 34a, dorsal; 34b, ventral.

FIGURE 42. Pupal and larval gill schematic diagrams, left lateral, for Ecclisomyia bilera Denning, Ecclisomyia conspersa Banks, Ecclisomyia maculosa Banks, Ecclisomyia simulata Banks. Abbreviations: I–VIII = dorsal abdominal segments, with Arabic numerals representing the number of gills per segment in anterior and posterior positions at dorsal, lateral or lateral line (dorsolateral and ventrolateral), and ventral levels.

FIGURES11a–11c. Ecclisomyia conspersa Banks, male genitalia.11a, left lateral; 11b, ventral; 11c, dorsal. Abbreviations:ifa = inferior appendage (paired); ima = intermediate appendage; IX = segment IX; par = paramere (paired); ph = phallus; phcr = phallocrypt; pl = pleuron (paired); sa = superior appendage (paired); VIIIs = sternum VIII; VIIIt = tergum VIII; Xt= tergum X.

FIGURES22a–22c. Ecclisomyiamaculosa Banks, male genitalia.22a, left lateral; 22b,ventral; 22c,dorsal. Abbreviations:ifa = inferior appendage (paired); ima = intermediate appendage; IX = segment IX; par = parameres (fused pair); phcr = phallocrypt; pl = pleuron (paired); sa = superior appendage (paired); VIIIs = sternum VIII; VIIIt = tergum VIII; Xt= tergum X.

FIGURES23a–23c. Ecclisomyiamaculosa Banks, male genitalia.23a, left lateral; 23b, ventral; 23c, dorsal. Abbreviations:ifa = inferior appendage (paired); ima = intermediate appendage; IX = segment IX; par = parameres (fused pair); ph = phallus; phcr = phallocrypt; pl = pleuron (paired); sa = superior appendage (paired); VIIIs = sternum VIII; VIIIt = tergum VIII; Xt = tergum X.

FIGURES13a, 13b. EcclisomyiaconspersaBanks, femalegenitalia.13a, ventral;13b, left lateral.Abbreviations:e.gon.VIII = external part of gonopod VIII; e.gon.IX = external part of gonopod IX; spt.sc = spermathecal sclerite; ssc.o = spermathecal sclerite opening; IXs = sternum IX; Xt = tergum X.

FIGURES24a–24c.Ecclisomyia maculosa Banks, female terminalia.24a, leftlateral; 24b, dorsal;24c, ventral.Abbreviations: e.gon.VIII = external part of gonopod VIII; e.gon.IX = external part of gonopod IX; IXs = sternum IX; IXt = tergum IX; pl = pleuron (paired); spt.sc = spermathecal sclerite; ssc.o = spermathecal sclerite opening; VIIIs = sternumVIII; IXs = sternum IX; IXt = tergum IX; Xt = tergum X.