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FIGURE 18 A–C in Revision of black fungus gnat species (Diptera, Sciaridae) described from the Hawaiian Islands by D.E. Hardy and W.A. Steffan, and a contribution to the knowledge of the sciarid fauna of the Galápagos Islands

FIGURE 18 A–C. Scatopsciara hardyi sp. n. A. Holotype. Hypopygium; B. Basal segments of antenna; C. Wings.

FIGURE 17 A–E in Revision of black fungus gnat species (Diptera, Sciaridae) described from the Hawaiian Islands by D.E. Hardy and W.A. Steffan, and a contribution to the knowledge of the sciarid fauna of the Galápagos Islands

FIGURE 17 A–E. Pseudolycoriella setigera (Hardy, 1960). Holotype. A. Hypopygium; B. Head; C. Flagellomeres 3–5; D. Apex of fore tibia; E. Wing.

FIGURE 16 A–D in Revision of black fungus gnat species (Diptera, Sciaridae) described from the Hawaiian Islands by D.E. Hardy and W.A. Steffan, and a contribution to the knowledge of the sciarid fauna of the Galápagos Islands

FIGURE 16 A–D. Pseudolycoriella nigrofemoralis sp. n. Holotype. A. Hypopygium; B. Flagellomeres 3–5; C. Palpus; D. Claw.

FIGURE 15 A–D in Revision of black fungus gnat species (Diptera, Sciaridae) described from the Hawaiian Islands by D.E. Hardy and W.A. Steffan, and a contribution to the knowledge of the sciarid fauna of the Galápagos Islands

FIGURE 15 A–D. Phytosciara (Prosciara) vulcanata Steffan, 1973. A. Hypopygium; B. Flagellomeres 3–5; C. Apex of fore tibia; D. Claw.

FIGURE 3 A–D. Bradysia bishopi Steffan, 1973. Holotype. A in Revision of black fungus gnat species (Diptera, Sciaridae) described from the Hawaiian Islands by D.E. Hardy and W.A. Steffan, and a contribution to the knowledge of the sciarid fauna of the Galápagos Islands

FIGURE 3 A–D. Bradysia bishopi Steffan, 1973. Holotype. A. Hypopygium; B. Flagellomeres 4–5; C. Tibial organ of fore tibia; D. Wing.

FIGURE 9 A–B in Revision of black fungus gnat species (Diptera, Sciaridae) described from the Hawaiian Islands by D.E. Hardy and W.A. Steffan, and a contribution to the knowledge of the sciarid fauna of the Galápagos Islands

FIGURE 9 A–B. Cosmosciara hartii (Johannsen, 1912) Holotype of Plastosciara brevicalcarata Hardy. A. Gonostylus; B. Head and palpus.

FIGURE 4 A–C in Revision of black fungus gnat species (Diptera, Sciaridae) described from the Hawaiian Islands by D.E. Hardy and W.A. Steffan, and a contribution to the knowledge of the sciarid fauna of the Galápagos Islands

FIGURE 4 A–C. Bradysia crassicornis (Skuse, 1890). Specimen from Barbers Point, O'ahu. A. Hypopygium; B. Head with basal segments of flagellomeres; C. Tibial organ of fore tibia.

FIGURE 2 A–D in Revision of black fungus gnat species (Diptera, Sciaridae) described from the Hawaiian Islands by D.E. Hardy and W.A. Steffan, and a contribution to the knowledge of the sciarid fauna of the Galápagos Islands

FIGURE 2 A–D. Austrosciara hawaiiensis (Hardy, 1956). Specimen from Mauna Loa East Slope. A. Hypopygium; B. Apex of fore tibia; C. Head with palpus and basal flagellomeres; D. Wing.

FIGURE 10 A–D in Revision of black fungus gnat species (Diptera, Sciaridae) described from the Hawaiian Islands by D.E. Hardy and W.A. Steffan, and a contribution to the knowledge of the sciarid fauna of the Galápagos Islands

FIGURE 10 A–D. Cratyna adrostylata (Hardy, 1956). Holotype. A. Hypopygium; B. Basal segments of antenna; C. Palpus; D. Apex of fore tibia.

FIGURE 6 A–C in Revision of black fungus gnat species (Diptera, Sciaridae) described from the Hawaiian Islands by D.E. Hardy and W.A. Steffan, and a contribution to the knowledge of the sciarid fauna of the Galápagos Islands

FIGURE 6 A–C. Corynoptera latistylata (Hardy, 1956). Holotype. A. Hypopygium; B. Flagellomeres 3–5; C. Apex of fore tibia.

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Figs 4–12 in Contribution to the knowledge of the fauna of fungus gnats (Diptera: Bolitophilidae, Keroplatidae, Mycetophilidae) from the Republic of Dagestan

Figs 4–12. Male genitalia: 4–8 — Mycomya (Mycomya) matilei; 9–12 — Rymosia beaucournui; 4–5 — sternal synsclerite; 6 — tergite 9 and proctiger; 7–11 — hypopygium; 12 — tergite 9, cerci and aedeagus; 4, 6, 9, 12 — dorsal view; 5, 8, 10 — ventral view; 7 — lateral view; 11 — caudal view. Not to the same scale. Рис. 4–12. Гениталии самцов: 4–8 — Mycomya (Mycomya) matilei; 9–12 — Rymosia beaucournui; 4–5 — стернальный синсклерит, сверху; 6 — тергит 9 и проктигер; 7–11 — гипопигий; 12 — тергит 9, церки и Эдеагус; 4, 6, 9, 12 — сверху; 5, 8, 10 — сниЗу; 7 — сбоку; 11 — сЗади. МасШтаб раЗный.

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Figs 1–3 in Contribution to the knowledge of the fauna of fungus gnats (Diptera: Bolitophilidae, Keroplatidae, Mycetophilidae) from the Republic of Dagestan

Figs 1–3. Some collecting localities: 1 — Agachaul env.; 2 — Derbent env.; 3 — Gerga env. Рис. 1–3. Некоторые места сборов: 1 — окр. Агачаула; 2 — окр. Дербента; 3 — окр. Герги.

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Figs 13–21 in Contribution to the knowledge of the fauna of fungus gnats (Diptera: Bolitophilidae, Keroplatidae, Mycetophilidae) from the Republic of Dagestan

Figs 13–21. Male genitalia: 13 — Rymosia beaucournui; 14— Tarnania dziedzickii; 16–17 — Phronia basalis; 18–19 — Sceptonia tenuis;20–21 — Trichonta foeda; 13, 17 — gonostylus; 14–16, 20–21 — hypopygium; 18–19 — hypopygium (tergite 9 and cerci removed); 13, 17 — inner view; 14, 19–20 — dorsal view; 15, 16, 21 — ventral view; 18 — lateral view. Not to the same scale. Рис. 13–21. Гениталии самца: 13 — Rymosia beaucournui; 14— Tarnania dziedzickii; 16–17 — Phronia basalis; 18–19 — Sceptonia tenuis;20–21 — Trichonta foeda; 13, 17 — гоностиль; 14–16, 20–21 — гипопигий; 18–19 — гипопигий (тергит 9 и церки удалены); 13, 17 — иЗнутри; 14, 19–20 — сверху; 15, 16, 21 — сниЗу; 18 — сбоку. МасШтаб раЗный.

Fig. 3 in Fungus gnats in the Botanical garden Jean Massart on the outskirts of Brussels: 52 new country records and a pictorial atlas of the genera (Diptera: Sciaroidea)

Fig. 3. Fluctuation of species diversity during the whole collecting period. The dotted line separates two more diverse periods. Blue line indicates results from MT1, red line from MT2 and green line summarizes collecting with both traps. Numbers of the outer circle represent these of the subsequent samples.

Fig. 8 in Fungus gnats in the Botanical garden Jean Massart on the outskirts of Brussels: 52 new country records and a pictorial atlas of the genera (Diptera: Sciaroidea)

Fig. 8. Species accumulation curves (EstimateS, Version 9.1.0, Copyright R. K. Colwell). S(est) is the observed number of species. Vertical axis = number of species, horizontal axis = number of samples.

Fig. 4 in Fungus gnats in the Botanical garden Jean Massart on the outskirts of Brussels: 52 new country records and a pictorial atlas of the genera (Diptera: Sciaroidea)

Fig. 4. Habitus of fungus gnats of the families Bolitophilidae (A), Ditomyiidae (B), Diadocidiidae (F) and Keroplatidae (C, D, E, G). A – Bolitophila (Bolitophila) saundersii; B – Symmerus annulatus; C – Macrorrhyncha flava; D – Neoplatyura modesta; E – Keroplatus testaceus; F – Diadocidia (Diadocidia) ferruginosa; G – Platyura marginata.

Fig. 7 in Fungus gnats in the Botanical garden Jean Massart on the outskirts of Brussels: 52 new country records and a pictorial atlas of the genera (Diptera: Sciaroidea)

Fig. 7. Habitus of fungus gnats of the family Mycetophilidae. A – Exechia contaminata; B – Exechiopsis (Exechiopsis) fimbriata; C – Rymosia spinipes; D – Tarnania fenestralis; E – Mycetophila signatoides; F – Dynatosoma fuscicorne (terminalia detached); G – Trichonta fragilis (terminalia detached); H – Sceptonia cryptocauda; I – Phronia biarcuata; J – Platurocypta punctum; K – Zygomyia valida.

Fig. 1 in Fungus gnats in the Botanical garden Jean Massart on the outskirts of Brussels: 52 new country records and a pictorial atlas of the genera (Diptera: Sciaroidea)

Fig. 1. Location of the Jardin Massart on the outskirts of Brussels. Red dot on left is the Malaise trap No 1 (MT1) and that on right side the Malaise trap No 2 (MT2).

Fig. 5 in Fungus gnats in the Botanical garden Jean Massart on the outskirts of Brussels: 52 new country records and a pictorial atlas of the genera (Diptera: Sciaroidea)

Fig. 5. Habitus of fungus gnats of the families Ditomyiidae (A), Keroplatidae (B, C, M) and Mycetophilidae (D, E, F, G, H, I, J, K, L, N, O). A – Ditomyia fasciata; B – Orfelia bicolor; C – Pyratula zonata; D – Monoclona rufilatera; E – Acnemia nitidicollis; F – Mycomya (Mycomya) cinerascens; G – Apolephthisa subincana; H – Megalopelma nigroclavatum; I – Coelosia flava; J – Neoempheria pictipennis; K – Boletina gripha; L – Sciophila fenestella; M – Macrocera phalerata; N – Coelophthinia thoracica; O – Grzegorzekia collaris.

Fig. 6 in Fungus gnats in the Botanical garden Jean Massart on the outskirts of Brussels: 52 new country records and a pictorial atlas of the genera (Diptera: Sciaroidea)

Fig. 6. Habitus of fungus gnats of the family Mycetophilidae. A – Saigusaia flaviventris; B – Synapha fasciata; C – Tetragoneura sylvatica; D – Ectrepesthoneura hirta; E – Greenomyia mongolica; F – Clastobasis loici; G – Megophthalmidia crassicornis; H – Leia winthemii; I – Docosia flavicoxa; J – Brevicornu proximum; K – Anatella simpatica; L – Cordyla fissa; M – Allodia (Allodia) lugens.