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FIGURES 20–21 in The Plecoptera of Panama. IV. Description of the last nymphal instar for two species of Anacroneuria Klapálek (Plecoptera: Perlidae) from the Caldera River, Chiriquí, Panamá

FIGURES 20–21. Thorax of Anacroneuria quetzali (male). 20. Pronotum, mesonotum and metanotum, dorsal view, 21. Gills, side view. (hd: head, th: thorax, pr: pronotum, ms: mesonotum, mt: metanotum, sc: supracoxal gill, tg: thorax gill, ad: abdomen, scale: 1.0 mm).

FIGURE 1 in The Plecoptera of Panama. IV. Description of the last nymphal instar for two species of Anacroneuria Klapálek (Plecoptera: Perlidae) from the Caldera River, Chiriquí, Panamá

FIGURE 1. Altitudinal locations of Anacroneuria planicollis and A. quetzali in the Caldera River, Province of Chiriquí, Panamá.

FIGURES 22–24 in The Plecoptera of Panama. IV. Description of the last nymphal instar for two species of Anacroneuria Klapálek (Plecoptera: Perlidae) from the Caldera River, Chiriquí, Panamá

FIGURES 22–24. Abdomen of Anacroneuria quetzali. 22. Abdomen, ventral view, male, 23. Abdomen, ventral view, female, 24. Cercus (st: sternite, scale: 1.0 mm).

FIGURE 20 in Multi-instar descriptions of cave dwelling Erythraeidae (Trombidiformes: Parasitengona) employing an integrative approach

FIGURE 20. Charletonia rocciai Treat & Flechtmann, 1979 male. A: General view; B: Ti I and Ta I, with lines pointing to the relative position of the vestigiala (κ), detailed in Fig. 9A, B; C: Crista metopica and eye; D: Palp and gnathosoma dorsal view, ar- row head pointing to the punctate palp femur; E: Palp and gnathosoma ventral view; F: Genital and anal pore, black lines indicating the tips of proximal and distal arms of the genital complex skeleton; G: Ventral setae. Scale: A= 1000 µm; B–F= 200 µm.

FIGURE 16 in Multi-instar descriptions of cave dwelling Erythraeidae (Trombidiformes: Parasitengona) employing an integrative approach

FIGURE 16. Charletonia rocciai Treat & Flechtmann, 1979: joint between genu and tibia II, showing the presence of a microseta on the holotype (larval instar). Scale: 50 µm.

FIGURE 8 in Multi-instar descriptions of cave dwelling Erythraeidae (Trombidiformes: Parasitengona) employing an integrative approach

FIGURE 8. Leptus sidorchukae sp. nov. larva. A: Gnathosoma ventral view; B: Palp-tarsus; C: Dorsal scutum; D: Idiosoma dorsal view; E: Idiosoma ventral view. Scale: A= 100 µm, B= 20 µm, C= 50 µm; D and E= 200 µm.

FIGURE 3 in Multi-instar descriptions of cave dwelling Erythraeidae (Trombidiformes: Parasitengona) employing an integrative approach

FIGURE 3. Lasioerythraeus jessicae sp. nov. larva. A: Idiosoma, dorsal view; B: Idiosoma, ventral view; C: Gnathosoma, lateral view; D: Scutum; E: Dorsal setae: detail showing the blade-like and flagelliform setae; F: Palp; G: Palp tarsus. Scale: A, B, C, F= 200 µm; D= 100 µm; E, G= 50 µm.

FIGURE 3 in Description of the last instar larva of Peristicta aeneoviridis Calvert, 1909 (Odonata: Coenagrionidae)

FIGURE 3. Last instar-lava of Peristicta forceps: a) prothoracic femur details, ventral view; b) setae on prothoracic femur, ventral view; c, d, e) median caudal lamella morphological variation, left lateral view; f, g, h) lateral caudal lamella morphological variation, left lateral view.

FIGURE 2 in Description of the last instar larva of Peristicta aeneoviridis Calvert, 1909 (Odonata: Coenagrionidae)

FIGURE 2. Last instar-lava of Peristicta aenoviridis: a) right prothoracic leg, ventral view; b) prothoracic femur details, ventral view; c) setae on prothoracic femur, ventral view; d) protibia, ventral view; e) median caudal lamella, left lateral view; f) lateral caudal lamella, left lateral view.

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Figs. 3–10. Stictolobus minutus. 3, Adult male. 4, Adult female. 5, Male genitalia. 6, First instar. 7, Second instar. 8, Third instar. 9, Fourth instar. 10 in Do Nymphs Of The Treehopper Stictolobus Minutus (Funkhouser) (Hemiptera: Membracidae) Specialize On Grasses?

Figs. 3–10. Stictolobus minutus. 3, Adult male. 4, Adult female. 5, Male genitalia. 6, First instar. 7, Second instar. 8, Third instar. 9, Fourth instar. 10, Fifth instar.

FIGURES 34–38. Thremma gallicum McLachlan 1880, final instar larva. 34 in Discriminatory matrix for the larvae of the European Thremma species (Trichoptera: Thremmatidae)

FIGURES 34–38. Thremma gallicum McLachlan 1880, final instar larva. 34, head and pronotum, dorsal; 35, mesonotum, dorsal (sa1–sa3 = sclerites of setal areas 1–3). 36, propleuron, right lateral (m = epimeron; s = episternum; t = foretrochantin). 37, ventral protuberance of abdominal segment I, ventral (m = semicircular row of muscle attachment spots; vs = ventral sclerite). 38, abdominal segments I–II, right lateral (dg = dorsal gill; sa3 = setal area 3; sf = spinule field; arrow = white patch within spinule field on lateral protuberance). Scale bars: 0.5 mm.

FIGURES 28–33. Thremma spp., final instar larvae. 28–31, Thremma anomalum McLachlan 1876 in Discriminatory matrix for the larvae of the European Thremma species (Trichoptera: Thremmatidae)

FIGURES 28–33. Thremma spp., final instar larvae. 28–31, Thremma anomalum McLachlan 1876, final instar larva: 28, detail of right lateral protuberance (sa = spinule area); 29, abdominal segment IX, dorsal; 30, tip of abdomen, right lateral; 31, case, right ventrolateral. 32–33, Thremma gallicum McLachlan 1880, final instar larva: 32, head, frontal; 33, head, ventral. Scale bars: 0.5 mm.

FIGURES 39–43. Thremma spp., final instar larvae. 39–42, Thremma gallicum McLachlan 1880 in Discriminatory matrix for the larvae of the European Thremma species (Trichoptera: Thremmatidae)

FIGURES 39–43. Thremma spp., final instar larvae. 39–42, Thremma gallicum McLachlan 1880, final instar larva: 39, case, ventral; 40, case, dorsal; 41, case, right lateral; 42, case, posterior, showing silken membrane with ovoid foramen. 43, Thremma tellae González 1978, final instar larva: head, frontal. Scale bars: 0.5 mm (except Fig. 42: 0.2 mm).

FIGURES 22–27. Thremma anomalum McLachlan 1876, final instar larva after partial apolysis. 22 in Discriminatory matrix for the larvae of the European Thremma species (Trichoptera: Thremmatidae)

FIGURES 22–27. Thremma anomalum McLachlan 1876, final instar larva after partial apolysis. 22, head, right lateral. 23, pro- and mesonota, dorsal (p = pronotum; sa1–sa3 = sclerites of setal areas 1–3). 24, metathorax and abdominal segment I, dorsal (sa1–sa3 = setal areas 1–3). 25, prosternum, ventral (ae = anterolateral extension of prosternum; pe = posterolateral extension of prosternum; dotted circle = insertion of prosternal horn). 26, propleuron, right lateral (t = foretrochantin). 27, ventral protuberance of abdominal segment I, ventral (m = semicircular row of muscle attachment spots; dashed lines = borders of V-shaped membranous area). Scale bars: 0.5 mm (except Fig. 25: 0.2 mm).

FIGURES 18–21. Thremma spp., final instar larvae. 18–19, Thremma sardoum Costa 1884 in Discriminatory matrix for the larvae of the European Thremma species (Trichoptera: Thremmatidae)

FIGURES 18–21. Thremma spp., final instar larvae. 18–19, Thremma sardoum Costa 1884, final instar larva: 18, case, dorsal; 19, case, posterior, showing silken membrane with transverse, ovoid foramen near dorsal border of membrane. 20–21, Thremma anomalum McLachlan 1876: 20, head, frontal; 21, head, ventral (small white number = head seta #8). Scale bars: 0.5 mm.

FIGURES 7–11. Thremma sardoum Costa 1884, final instar larva. 7 in Discriminatory matrix for the larvae of the European Thremma species (Trichoptera: Thremmatidae)

FIGURES 7–11. Thremma sardoum Costa 1884, final instar larva. 7, meso- and metathoraces, right lateral (m = epimeron; ms = mesonotum; mt = metanotum; ps = pleural suture; s = episternum; sa1–sa3 = setal areas 1–3). 8, metathorax and abdominal segments I and II, dorsal (dp = dorsal protuberance; lp = lateral protuberance; mt = metathorax; sa1–sa3 = setal areas 1–3). 9, right foreleg, posterior face (c = central area of pleural suture; m = epimeron; s = episternum; t = foretrochantin). 10, right midleg, posterior face. 11, right hind leg, posterior face. Scale bars: 0.5 mm.