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Figs 10−13 in Further notes on Asian fauna of Sepedon (Diptera, Sciomyzidae)

Figs 10−13. Sepedon, postabdomen and surstyli: 10 — S. hecate; 11 — S. spinipes; 12 — S. neanias; 13 — S. sphegea (12 and 13 from Li & Yang 2017)

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Fig. 5 in Further notes on Asian fauna of Sepedon (Diptera, Sciomyzidae)

Fig. 5. Sepedon spangleri, male, antenna (photo by W. Murphy) Рис. 5. Sepedon spangleri, самец, антенна (фото: W. Murphy)

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Fig. 4 in Further notes on Asian fauna of Sepedon (Diptera, Sciomyzidae)

Fig. 4. Sepedon spangleri, male, general view (photo by W. Murphy) Рис. 4. Sepedon spangleri, самец, общий виΑ (фото: W. Murphy)

Fig. 3 in Life-cycle of the Afrotropical snail-killing fly Sepedon (Parasepedon) ruficeps Becker, 1923

Fig. 3. General distribution of Sepedon (Parasepedon) ruficeps. Dots – known locations, stars – occurrence of the fly in a country is ubiquitous. Data from Verbeke (1950, 1961, 1962, 1963), Knutson et al. (1967), and our own collections as well as those of colleagues in some African countries.

Fig. 1 in Life-cycle of the Afrotropical snail-killing fly Sepedon (Parasepedon) ruficeps Becker, 1923

Fig. 1. Sepedon (Parasepedon) ruficeps, male: (A) Habitus, right hind leg is broken; (B) head, dorsal view. (Photos: A. Mantilleri)

Fig. 8 in Life-cycle of the Afrotropical snail-killing fly Sepedon (Parasepedon) ruficeps Becker, 1923

Fig. 8. Sepedon (Parasepedon) ruficeps, details of immature stages: (A–H, J–O) cephalopharyngeal skeleton:(A, B) first instar larva; (C–H) second instar larva; (J–O) third instar larva. (I, P) anterior spiracle of second and third instar larva, respectively. (Q, R) puparium: dorsal (Q) and lateral (R) views. Abbreviations: ant – anterior end, At – accessory teeth, (Dc) dorsal cornua, ES – epistomal sclerite, HS – hypostomal sclerite, LS – lingual sclerite, MH – mouth hook, pa – papilla, PB – parastomal bar, post – posterior end, PS – pharyngeal sclerite, Ss – spiracular scar, VA – ventral arch, Vc – ventral cornua. Scale bars in mm.

Fig. 5 in Life-cycle of the Afrotropical snail-killing fly Sepedon (Parasepedon) ruficeps Becker, 1923

Fig. 5. Sepedon (Parasepedon) ruficeps, span of life cycle and development of immature stages, in days.

Fig. 4 in Life-cycle of the Afrotropical snail-killing fly Sepedon (Parasepedon) ruficeps Becker, 1923

Fig. 4. Examples of annual population evolution of Sepedon (Parasepedon) ruficeps, based on adults collected in freshwater habitats: (A) Agnavo, typical temporary freshwater habitat; (B) Cotonou, typical permanent freshwater habitat. Histogram, rainfall; curve, number of flies.

Fig. 2 in Life-cycle of the Afrotropical snail-killing fly Sepedon (Parasepedon) ruficeps Becker, 1923

Fig. 2. Surstylus and aedeagus: (A, B) Sepedon (Parasepedon) ruficeps; (C, D) S. (P.) senegalensis. Arrows show main differences. (Modified from Verbeke (1950), © Institut Royal des Sciences Naturelles de Belgique)

Fig. 7 in Life-cycle of the Afrotropical snail-killing fly Sepedon (Parasepedon) ruficeps Becker, 1923

Fig. 7. Sepedon (Parasepedon) ruficeps, details of larval abdominal segments: (A) disposition of ventral tubercles; (B) disposition of lateral tubercles and sensilla nos 5 to 11; (C) enlargement of lateral tubercles showing their sensillum types; (D), dorsolateral no. 9 and dorsal 10a sensilla, and dorsal swimming tuft; (E) coeloconicum sensillum type showing basal seta-like expansions; (F–H) last abdominal segment: (F) first instar larva, ventral view; (G) first instar larva, posterior spiracular disc; (H) third instar larva, posterior spiracular disc. Abbreviations: An – anal plate, arabic numbers (including 10a) – sensilla, DL – dorsal lobe, DLL – dorsolateral lobe, IP – interspiracular processes, LL – lateral lobe, Lt1–Lt3 – lateral tubercles, Sp – spiracular plate, Ss – spiracular scar, VL – ventral lobe, VLL – ventrolateral lobe, Vt1–Vt3 – ventral tubercles, Wt – swimming tuft. Scale bar in μm.

Fig. 6 in Life-cycle of the Afrotropical snail-killing fly Sepedon (Parasepedon) ruficeps Becker, 1923

Fig. 6. Sepedon (Parasepedon) ruficeps, details of larval immature stages: (A–D) egg, lateral (A) and ventral (B) views, anterior (C) and posterior (D) ends; (E–H) first instar larva: (E) anterior end showing cephalic (I) and thoracic (II–III) segments, frontal view; (F) first instar larva, anterior end in lateral view; (G) characteristic details of thoracic segment; (H) first instar larva more or less in ventrolateral view, segments I–IV showing position of the spinulate ventral band; (I) thoracic sensilla 2–8. Abbreviations:Ae – aeropyle, Ant – anterior end, AO – antennal organ, arabic numbers – sensilla, CL – cephalic lobe, DF – dorsal face, Gl – glue, I–IV – segment numbers, LF – lateral face, MO – maxillary organ, My – micropyle, Pst – posterior end, Post B – post oral spinulated band, Sdr – subdorsal ridge, Slr – sublateral ridge, Tsv B – transverse spinulate ventral band, VF – ventral face. Scale bars in μm.

Figs 4, 5 in Proboscis labellar hooks in southern African species of Sepedon (Diptera: Schizophora: Sciomyzidae)

Figs 4, 5. Sepedon pleuritica: (4) labellar surface showing distribution of labellar hooks (LH) and depressed pseudotracheal rings (PR), note upwardly furled section of interpseudotracheal membrane (arrow heads); (5) labellar hook, showing basal rod-like structure (arrowed), partially concealed within longitudinal groove. Magnifications: Fig. 4, 2250×; Fig. 5, 5220×.

Figs 2, 3 in Proboscis labellar hooks in southern African species of Sepedon (Diptera: Schizophora: Sciomyzidae)

Figs 2, 3. Sepedon neavei: (2) labellum, partially everted, showing paired labellar hooks (arrowed), elevated pseudotracheal rings (PR), and interpseudotracheal membrane (IM) with centrally excavated papillae; (3) labellum interior, showing paired labellar hooks in foreground, interpseudotracheal membrane (IM) and pseudotracheal ring tips (arrowed). Magnifications: Fig. 2, 2390×; Fig. 3, magnification details unavailable.

Figs 6, 7 in Proboscis labellar hooks in southern African species of Sepedon (Diptera: Schizophora: Sciomyzidae)

Figs 6, 7. Sepedon scapularis, partially everted labella, showing pseudotracheal rings (PR) of numerous pseudotracheae, and variously visible labellar hooks (arrowed) in the interpseudotracheal membrane. Magnification: 832×.

Fig. 1 in Proboscis labellar hooks in southern African species of Sepedon (Diptera: Schizophora: Sciomyzidae)

Fig. 1. Ethiolimnia geniculata, partially everted labellum, showing inconspicuous rows of pseudotracheal rings (arrowed), with largely undifferentiated interpseudotracheal membrane between the rows. Magnification: 1020×.

FIGURES 20–27 in A review of of the Holarctic Sepedon fuscipennis and S. spinipes groups with description of a new species (Diptera: Sciomyzidae)

FIGURES 20–27. Species of Sepedon spinipes group, male terminalia. 20–23. S. americana. 24–27. S. spinipes. 20, 24. Lateral view. 21, 25. Hypandrium in lateral view. 22, 26. Aedeagus in lateral view. 23, 27. Epiphallus in caudal view. Scales: 0.5 mm (Figs 20, 24), 0.3 mm (Figs 21–23, 24–27).

FIGURES 1–3 in A review of of the Holarctic Sepedon fuscipennis and S. spinipes groups with description of a new species (Diptera: Sciomyzidae)

FIGURES 1–3. Sepedon hecate sp. nov., male. 1. Head in dorsal view. 2. Head in lateral view. 3. Left hind leg in lateral view. Scales: 1.0 mm.

FIGURES 8–19 in A review of of the Holarctic Sepedon fuscipennis and S. spinipes groups with description of a new species (Diptera: Sciomyzidae)

FIGURES 8–19. Nearctic species of Sepedon fuscipennis group, details of male terminalia. 8, 12, 16. S. floridensis. 9, 13, 17. S. fuscipennis. 10, 14, 18. S. gracilicornis. 11, 15, 19. S. tenuicornis. 8–11. Hypandrium in lateral view. 12–15. Aedeagus in lateral view. 16–19. Epiphallus in caudal view. Scale: 0.3 mm.

FIGURES 4–7 in A review of of the Holarctic Sepedon fuscipennis and S. spinipes groups with description of a new species (Diptera: Sciomyzidae)

FIGURES 4–7. Sepedon hecate sp. nov., male terminalia. 4. Lateral view. 5. Hypandrium in lateral view. 6. Aedeagal complex in lateral view. 7. Epiphallus in caudal view. Scales: 0.3 mm. aa aedeagal apodeme, ae aedeagus, ce cercus, dph distiphallus, ea ejaculatory apodeme, ep epandrium, eph epiphallus, hy hypandrium, po postgonite, pr pregonite, ss surstylus.