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41 results for “Caenis”
FIGURES 10–13 in Two new species of Caenis Stephens, 1835 (Ephemeroptera: Caenidae) from South America
FIGURES 10–13. Genitalia of Caenis elidioi sp. nov.: 10) general view, with details of styliger plate; 11–13) variations in forceps.
FIGURES 20–33 in Two new species of Caenis Stephens, 1835 (Ephemeroptera: Caenidae) from South America
FIGURES 20–33. Nymph of Caenis elidioi sp. nov. 20) labrum; 21) left mandible (ventral view); 22) right mandible (dorsal view); 23) hypopharynx; 24) maxilla; 25) coxal projection of hind coxa; 26) foreleg; 27) middle leg; 28) hind leg; 29) comblike setae of middle leg; 30) details of setae of hind margin of middle femur; 31) fore tarsal claw; 32) middle tarsal claw; 33) hind tarsal claw.
FIGURES 2–5 in Two new species of Caenis Stephens, 1835 (Ephemeroptera: Caenidae) from South America
FIGURES 2–5. Male imago of Caenis amacayacu sp. nov.: 2) detail of prosternum; 3) dorsal view of head and thorax; 4) ventral view of genitalia; 5) detail of forceps.
FIGURES 16–19 in Two new species of Caenis Stephens, 1835 (Ephemeroptera: Caenidae) from South America
FIGURES 16–19. Nymph of Caenis elidioi sp. nov.: 16) habitus; 17) opercular gill; 18) details of microtrichia from submarginal row on ventral surface of opercular gill; 19) sternum IX.
FIGURES 6–9 in Two new species of Caenis Stephens, 1835 (Ephemeroptera: Caenidae) from South America
FIGURES 6–9. Male imago of Caenis elidioi sp. nov.: 6) dorsal view of abdomen; 7) ventral view of head and prothorax; 8) ventral view of genitalia (AP=apophysis; BS=basolateral sclerite; CS=central sclerite; LS=lateral sclerite; P=penis; SP=styliger plate); 9) dorsal view of genitalia (DP=dorsal projection of penes).
FIGURES 14–15 in Two new species of Caenis Stephens, 1835 (Ephemeroptera: Caenidae) from South America
FIGURES 14–15. Eggs of Caenis elidioi sp. nov.: 14) detail of surface (c=chorion; pc=polar cap); G) detail of micropyle (mc=micropylar canal). Scale bar: 10µm.
FIGURES 8–10. Caenis reissi, nymph. 8, dorsal view. 9, opercular gill. 10 in New distributional records and life stage description of Caenis species (Ephemeroptera: Caenidae) from Brazil
FIGURES 8–10. Caenis reissi, nymph. 8, dorsal view. 9, opercular gill. 10, detail of IX sternum (ventral view).
FIGURES 4–7. Caenis spp., eggs. 4-5, C in New distributional records and life stage description of Caenis species (Ephemeroptera: Caenidae) from Brazil
FIGURES 4–7. Caenis spp., eggs. 4-5, C. cuniana: 4, detail of surface (c=chorion; mc=micropylar canal; pc=polar cap); 5, detail of polar cap. 6-7, C. reissi: 6, detail of surface (c; chorion; mc=micropylar canal; pc=polar cap); 7, detail of micropyle.
FIGURES 11–16. Caenis reissi, nymph. 11, labrum. 11a in New distributional records and life stage description of Caenis species (Ephemeroptera: Caenidae) from Brazil
FIGURES 11–16. Caenis reissi, nymph. 11, labrum. 11a, detail of anterior margin of labrum. 12, hypopharynx. 13, maxilla. 14, foreleg. 14a, detail of foreleg. claw, 15, mid leg. 15a, metacoxal process. 15b, detail of mid leg claw. 16, hind leg. 16a, detail of hind leg claw.
FIGURE 6. Caenis binda n in The first record of Caenis Stephens, 1835 in Australia (Ephemeroptera: Caenidae) with descriptions of two new species
FIGURE 6. Caenis binda n. sp., male imago. a, wing, markings at margins show extent of hairs along the posterior margin; b, genitalia; c, forceps showing apical bristles; d, antenna; e pedicel and scape of antenna; f, femur of foreleg; g, fore tarsus. Scale lines, a, d, f, g = 0.2 mm; b, c, e = 0.1 mm.
FIGURE 2. Caenis hanleyi n in The first record of Caenis Stephens, 1835 in Australia (Ephemeroptera: Caenidae) with descriptions of two new species
FIGURE 2. Caenis hanleyi n. sp. nymph. a, antenna base; b, pronotum; c, foreleg; d, tarsal claw of foreleg; e, mid leg; f, tarsal claw of mid leg; g, hindleg; h, tarsal claw of hind leg with comb of bristles; i, foreleg transverse row of bifid setae; j, second gill; k, margin of second gill and microtrichia; l, setae on mesal ridge of second gill. Scale lines = 0.1 mm.
FIGURE 3. Caenis hanleyi n in The first record of Caenis Stephens, 1835 in Australia (Ephemeroptera: Caenidae) with descriptions of two new species
FIGURE 3. Caenis hanleyi n. sp. mouthparts of nymph. a, labrum; b, maxilla; c, labium, dorsal (left), d, ventral (right); e, right mandible; f, left mandible; g, right incisors; h, left incisors. Scale lines = 0.1 mm.
FIGURE 5. a, Caenis hanleyi n in The first record of Caenis Stephens, 1835 in Australia (Ephemeroptera: Caenidae) with descriptions of two new species
FIGURE 5. a, Caenis hanleyi n. sp. prosternum of male imago; b, enlarged photo of prosternum arrowed; c, C. binda n. sp. prosternum of male arrowed; d, C. hanleyi nymphal gill IV; e, ornamentation on head; f, enlarged detail of tubercles on frons; g, ornamentation on mesonotum; h, enlarged detail of tubercles on pronotum; i, ornamentation on 2nd gill. Scale lines a, c, d, e, g = 0.12mm; b, f, h, i = 0.03mm.
FIGURE 4. Caenis hanleyi n in The first record of Caenis Stephens, 1835 in Australia (Ephemeroptera: Caenidae) with descriptions of two new species
FIGURE 4. Caenis hanleyi n. sp. nymph. a, abdominal setae; b, setae on base of terminal filaments; c, setae on mid area of terminal filaments; d, first gill; e, habitus. Scale lines = 0.1 mm.
FIGURE 1. Caenis hanleyi n in The first record of Caenis Stephens, 1835 in Australia (Ephemeroptera: Caenidae) with descriptions of two new species
FIGURE 1. Caenis hanleyi n. sp. male imago. a, wing, dotted markings show the extent of the marginal hairs; b, hairs on wing margin; c, abdomen with lateral projections; d, antenna; e antennal base; f, genitalia; g, forceps; h, fore tarsus. Scale lines a–h = 0.1 mm.
FIGURES 162–164 in South American Caenis Stephens (Ephemeroptera, Caenidae), new species and stage descriptions
FIGURES 162–164. Nymph, general view: 162, C. tenella; 163, C. plaumanni; 164, C. uruzu.
FIGURES 17–18 in A new mayfly species of Caenis from headwater of Zijin Hill (Nanjing, Eastern China) (Ephemeroptera: Caenidae)
FIGURES 17–18. Forceps of Caenis pycnacantha sp. nov. (SEM photo). 17, forceps; 18, forceps tip
FIGURE 16 in A new mayfly species of Caenis from headwater of Zijin Hill (Nanjing, Eastern China) (Ephemeroptera: Caenidae)
FIGURE 16. Male imago of Caenis pycnacantha sp. nov. (digital photo)
FIGURE 19 in A new mayfly species of Caenis from headwater of Zijin Hill (Nanjing, Eastern China) (Ephemeroptera: Caenidae)
FIGURE 19. Habitat of Caenis pycnacantha sp. nov. (digital photo)
FIGURE 19 in A new mayfly species of Caenis from headwater of Zijin Hill (Nanjing, Eastern China) (Ephemeroptera: Caenidae)
FIGURE 19. Habitat of Caenis pycnacantha sp. nov. (digital photo)
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