Figs. 1–4
Elachista synethes Meyrick, 1897. Egg: 1, dorsolateral view; 2, chorionic cells showing location of aeropyles (indicated by closed arrow in
Fig. 1); 3, micropylar region (indicated by open arrow in
Fig. 1); 4, aeropyle in detail. Scale bars = 50, 10, 5 and 1 μm, respectively.
Figs. 5–9
Elachista synethes Meyrick, 1897. First larval instar: 5, general, dorsal view; 6, head, ventral; 7, mouth parts, ventral; 8, antenna, laterodorsal; 9, prothoracic spiracle, anterolateral. Scale bars = 100, 25, 5, 5 and 2 μm, respectively.
Figs. 10–13
Elachista synethes Meyrick, 1897. Last larval instar: 10, head chaetotaxy, frontal view; 11, thoracic and abdominal chaetotaxy, lateral view; 12–13, head and prothorax, dorsal and ventral views, respectively (open arrows indicate prothoracic legs). Scale bars = 150, 300, 200 and 200 μm, respectively.
Figs. 14–25
Elachista synethes Meyrick, 1897. Scanning electron micrographs of last larval instar: 14, head, lateral view; 15, stemmata, lateral; 16, antenna, lateral; 17, head and prothorax, dorsal; 18, labrum and dorsal stemmata in detail, dorsal; 19, maxilla and labium, ventral; 20, prothorax, ventral; 21, detail of prothorax left portion, dorsal; 22, spiracle of abdominal segment A1, lateral; 23, prothoracic leg, posterolateral; 24, proleg of abdominal segment A4, ventral; 25, last abdominal segments, lateral. Scale bars = 100, 15, 10, 200, 50, 20, 150, 50, 20, 50, 50 and 100 μm, respectively.
Figs. 10–13
Elachista synethes Meyrick, 1897. Last larval instar: 10, head chaetotaxy, frontal view; 11, thoracic and abdominal chaetotaxy, lateral view; 12–13, head and prothorax, dorsal and ventral views, respectively (open arrows indicate prothoracic legs). Scale bars = 150, 300, 200 and 200 μm, respectively.
Figs. 14–25
Elachista synethes Meyrick, 1897. Scanning electron micrographs of last larval instar: 14, head, lateral view; 15, stemmata, lateral; 16, antenna, lateral; 17, head and prothorax, dorsal; 18, labrum and dorsal stemmata in detail, dorsal; 19, maxilla and labium, ventral; 20, prothorax, ventral; 21, detail of prothorax left portion, dorsal; 22, spiracle of abdominal segment A1, lateral; 23, prothoracic leg, posterolateral; 24, proleg of abdominal segment A4, ventral; 25, last abdominal segments, lateral. Scale bars = 100, 15, 10, 200, 50, 20, 150, 50, 20, 50, 50 and 100 μm, respectively.
Figs. 26–28
Elachista synethes Meyrick, 1897. 26, pupa in dorsal, 27, ventral and 28, lateral views, respectively. Scale bar = 300 μm.
Figs. 29–40
Elachista synethes Meyrick, 1897. Scanning electron micrographs of pupa: 29, head and thorax, dorsal view; 30, head, anterior; 31, head, ventral; 32, mesothoracic lateral tubercles in detail, dorsal; 33, terga of abdominal segments A2-4, dorsal view; 34, tergal ridges in detail, dorsal; 35, spiracle of abdominal segment A2, lateral; 36, spiracle of abdominal segment A6, dorsal; 37–39, last abdominal segments, in dorsal, ventral and lateral views, respectively; 40, cremaster setae on ninth abdominal segment, lateral. Scale bars = 200, 150, 150, 100, 200, 25, 250, 20, 100, 100, 100 and 20 μm, respectively.
Figs. 41–45
Elachista synethes Meyrick, 1897. Life history: 41, mine on leaf of Bromus catharticus, Azapa Valley, Arica municipality, Chile (open arrows indicate empty chorion and beginning of linear section of the mine; closed arrow indicates last-instar larva visible through transparent blotch section of the mine); 42, egg on leaf upper surface; 43, young mine in detail (open and closed arrows indicate respectively the empty chorion and first-instar larva seen by transparence); 44, last-instar larva weaving the cocoon; 45, pupa seen by transparence within cocoon. Scale bars = 2, 0.5, 0.5, and 1 mm, respectively.
Figs. 46–47
Transverse histological sections of leaf of Bromus catharticus, showing the organization levels of mine of Elachista synethes Meyrick, 1897 in relation to larval ontogeny: 46, first instar, initial, linear section of mine; 47, last instar, final, blotch section of mine. Asterisks indicate leaf mines. Ab abaxial surface of epidermis; Ad adaxial surface of epidermis; Me mesophyll; Ph phloem; Sc sclerenchyma; Xy xylem. Scale bars = 150 and 400 μm, respectively.