Berdeniella kocii, Ježek, 2006

Ježek, Jan, 2006, Psychodidae (Diptera) of the Jeseníky Protected Landscape Area and its environs with descriptions of two new Berdeniella species from the Czech Republic, Acta Entomologica Musei Nationalis Pragae 46, pp. 151-192 : 156-160

Berdeniella kocii sp. nov.

( Figs. 16-31 )

Type locality. Czech Republic, north-western Moravia, Hrubý Jeseník Mts., environs of Branná, Kronfelzov (= Pastviny), Brusný potok brook near a hill (667.8 m a.s.l.).

Type material. HOLOTYPE: J, CZECH REPUBLIC: MORAVIA bor.-occ., Branná ( NW vicinity) (5867), Kronfelzov (= Pastviny), Brusný potok brook near a hill (667.8 m a.s.l.), small forest flows, pastures, swamps, flocullated iron, 11.vii.1994, Loc. no. 25. Vegetation: Picea , Alnus , Acer, Fraxinus, Rubus, Aruncus , Petasites, Mentha, Lysimachia , Poaceae . Slide with dissected specimen, Cat. No. 34312, Inv. No. 14810 ( NMPC). PARATYPES: 59 JJ (slides, NMPC). The same locality as holotype [25], date and collector, Cat. No. 34319-34323, Inv. No. 14817-14821 (5 JJ). Branná (5867), limestone quarry, stream, 19.vii.1999, Loc. no. 14. Vegetation: Salix , Acer , Alnus , Betula, Valeriana, Stachys , Petasites, Nasturtium , Calamagrostis, Urtica , Apiaceae . Cat. No. 34324-34326, Inv.No. 14822- 14824 (3 JJ). Between Branná and Ostružná (5868), margin of Jeseníky PLA, forest brook, 12.vii.1994, Loc. no. 16. Vegetation: Picea , Fagus, Rosa, Rubus , Petasites, Mentha, Caltha, Urtica, Vaccinium , Apiaceae, Musci. Cat. No. 34355-34357, Inv. no. 14853-14855 (3 JJ). Přední Alojzov (5868), drain near cottages, 3.viii.1994, Loc. no. 26. Vegetation: Acer, Urtica. Cat. No. 34358-34359, Inv. No. 14856-14857 (2 JJ). Horní Domašov env., Filipovice (settlement) (5868), stream, 23.vi.1999, Loc. no. 42. Vegetation: Betula , Picea , Alnus , Salix, Fraxinus, Rubus , Petasites, Senecio , Aegopodium . Cat. No. 34328-34334, Inv. No. 14826-14832 (7 JJ). Filipovice (5868), W of Úsvit rehabilitation centre, small forest brooks, 27.vi.1999, Loc. no. 44. Vegetation: Picea , Fagus, Pteropsida, Myosotis, Nasturtium. Cat. No. 34335-34337, Inv. No. 14833-14835 (3 JJ). Jeseník env. (5769), 1 km NE of Bílé skály Mt. (922.4 m a.s.l.), forest spring, boulders in stream spray zone, 25.vii.1994, Loc. no. 60. Vegetation: Picea , Fagus , Betula, Senecio, Marchantiopsida, Musci. Cat. No. 34314-34315, Inv. No. 14812-14813 (2 JJ). Karlov pod Pradědem env. (5969), Velká kotlina basin (lower part), forest swamps, streams, spring area and avalanche scar, 26.vii.-5.viii.1994, Loc. no. 81. Vegetation: Picea , Fagus, Pinus , Betula , Alnus, Daphne, Ajuga, Asplenium, Oxalis, Juncus, Urtica, Asperula, Caltha, Equisetum, Viola , Petasites, Coeloglossum, Nasturtium, Vaccinium, Trollius, Telekia, Senecio, Pteropsida , Apiaceae, Musci. Cat. No. 34360, Inv. No. 14858 (1 J). Kouty nad Desnou, Annín (5868), Hučivá Desná river, small forest tributary, debris, 18.viii.1999, Loc. no. 100. Vegetation: Fagus , Acer , Betula, Fraxinus , Petasites, Aconitum, Senecio, Stachys, Caltha, Pteropsida. Cat. No. 34313, Inv. No. 14811 (1 J). Lipová Lázně env. (5768), 1.5 km SE of railway station, small forest brook, swamps, mud wallow, drains and meadows, pastures, debris, 27.vii.1994, Loc. no. 107. Vegetation: Picea , Fagus, Sorbus, Rubus, Pteropsida, Marchantiopsida, Musci , Poaceae . Cat. No. 34344-34346, Inv. No. 14842-14844 (3 JJ). Lipová Lázně env. (5768), Javořický potok brook near Javořík hill (772.1 m a.s.l.), forest swamps and mud wallows, 1.viii.1994, Loc. no. 111. Vegetation: Alnus , Acer, Frangula, Sambucus , Petasites, Senecio, Impatiens, Urtica, Pteropsida, Musci. Cat. No. 34338-34343, Inv. No. 14836-14841 (6 JJ). Lipová Lázně env. (5768), between Javořík hill (772.1 m a.s.l.) and Miroslav hamlet, small forest brook, 22.vii.1998, Loc. no. 113. Vegetation: Picea , Fagus , Petasites, Senecio, Equisetum, Pteropsida, Musci. Cat. No. 34349-34351, Inv. No. 14847-14849 (3 JJ). Lipová Lázně env. (5768), Na Pomezí cave env., small forest brook, 30.vii.1995, Loc. no. 114. Vegetation: Picea , Acer , Alnus, Sorbus, Stachys, Equisetum, Veratrum, Oxalis, Pteropsida, Musci. Cat. No. 34352-34354, Inv. No. 14850-14852 (3 JJ). Loučná nad Desnou env., Vernířovice (5968), meadows, small brook, 21.vii.1995, Loc. no. 120. Vegetation: Tilia , Acer , Alnus, Fraxinus, Sorbus, Ribes, Aruncus, Urtica, Senecio , Poaceae, Musci. Cat. No. 34361-34370, Inv. No. 14859- 14868 (10 JJ). Loučná nad Desnou env. (5968), Vlčí sedlo saddle near Kluč Mt. (892 m a.s.l.) and Sedmidvory hamlet, small forest brook, 21.vii.1995, Loc. no. 122. Vegetation: Alnus, Fraxinus, Sorbus, Equisetum, Senecio, Myosotis, Scirpus, Rumex , Poaceae, Musci. Cat. No. 34371, Inv. No. 14869 (1 J). Rejvíz env. (5769), Bleskovec Mt., 871 m a.s.l., small forest brook, 25.vii.1994, Loc. no. 150. Vegetation: Picea, Rubus, Vaccinium, Maianthemum , Poaceae, Pteropsida, Marachantiopsida, Musci. Cat.No. 34316-34318,Inv.No.14814-14816 (3 JJ). Šumperk env., Nový Malín (6068), upper part of Malínská rokle valley, forest brook, 2.viii.1995, Loc. no. 190. Vegetation: Acer, Fraxinus, Stachys , Petasites , Aegopodium, Senecio, Pteropsida. Cat. No. 34347-34348, Inv. No. 14845- 14846 (2 JJ). All specimens J. Ježek leg. (by sweeping) except Loc. no. 81 (Malaise trap, Ištváneh leg.).

Description. Male. Eyes not touching, eye-bridge of four facet rows, frontoclypeus with ca rectangular patch of insertions of hairs connected with dorso-ventral stripe of irregularly arranged hair pits between dorsal margins of eyes ( Fig. 16 ). Minimum distance between eyes 2.5 times as wide as diameter of facets. Ratios of distance of tangential points of ends of eyes to minimum width of frons 4.3: 1, to facet diameter 10.8: 1. Frontal suture simple, arched. Antenna with 16 antennomeres. Scape short ( Fig. 25 ), somewhat widened distad. Pedicel almost globular. Basal flagellomeres spindle-shaped, distal ones smaller, cask-shaped. Terminal flagellomere with excentric, slightly prolonged protuberance ( Fig. 18 ). Sensory filaments (ascoids) thin, simple, needle-shaped, bent basally, paired. Length ratios of maxillary palpomeres 1: 1.5: 1.7: 2.6. Last palpomere annulate ( Fig. 20 ). Terminal lobe of labium as in Fig. 19 . Ratio of maximum length of cibarium to length of epipharynx 1.5: 1. Thoracic sclerites as in Fig. 21 . Wings ( Fig. 26 ) pericomoid, lancet-shaped, clear, 2.1-2.9 mm (2.2 mm in holotype) long, wing membrane bare. Fusion of Sc with R 1 in one point, radial and medial forks complete. Following veins or their parts strengthened: Sc, R 1, bases of R 4 and M 1+2, short basal part of M 4 and almost entire Cu. Basal costal nodes distinct, Sc uninterrupted. M 3 and Cu with connection to M 4. R 5 extending distally and reaching wing margin a little behind apex of wing. Veins r-r, r-m and m-m visible. Medial wing angle 158° (BCD). Wing indices AB: AC: AD = 4.4: 4.4: 4.2; BC: CD: BD = 1: 1.6: 2.5. Maximum wing length equal to 2.5 times its maximum width. Maximum length ratio of haltere to its maximum width 2.5: 1. Length ratios of femora, tibiae and first tarsal segments: P 1 = 1.8: 1.8: 1; P 2 = 1.9: 2.2: 1.1; P 3 = 2: 2.5: 1.1. Fore claws ( Fig. 27 ) bent, form depending on angle of view, gradually tapering to apex. Basal apodeme of male genitalia straight and narrowed proximally to sharp end in dorsal view, excised in lateral view. Distal part of basal apodeme forming large double cavity (proximal cell very small) with two tubular rods at base ( Figs. 23 , 30, 31 ). Copulatory organ characteristic, inner lamellae separated ( Fig. 30 ). Gonocoxite cylindrical, rather long and straight, without lateral protuberance. Gonostyle with small strengthening in tapered part, ending by small hook ( Figs. 28, 30 ). Epandrium broad and short, with two large patches of separated hair areas and two elliptic openings proximally ( Figs. 22 , 29 ). Sclerotized remainders of tergite and sternite 10 inside of epandrium of characteristic shape. Hypandrium narrow ( Fig. 30 ), bare, with two small white cells in middle. Epiproct small, triangular, haired. Hypoproct large, broad, tongue-shaped, with narrow basis, haired ( Figs. 22 , 29 ). Surstyli long, bent from lateral view, twice as long as epandrium, subapically with one moderately long retinaculum and two developed small sensory spines.

Female. Unknown.

Variability. Double cavity of distal part of basal apodeme of aedeagal complex and tubular rods somewhat variable in shape, depending on angle of view ( Figs. 23 , 30- 31 ). Some paratypes have only one small sensory spine near basis of retinaculum on one surstylus (Inv. No. 14819, 14830, 14837, 14843 and 14858), however, the second surstylus always has two sensory spines ( Fig. 29 ).

Differential diagnosis. Berdeniella kocii sp. nov. is characterized by the combination of the following characters: one point fusion of Sc with R 1 ( Fig. 26 ), inner lamellae of aedeagal complex separated ( Fig. 30 ), double cavity in the distal end of the basal apodeme of male genitalia developed ( Figs. 23 , 30-31 ), gonostyle with a small strengthening in the tapered part ( Fig. 30 ), hypandrium with only two white cells in the middle ( Fig. 30 ), and two developed small sensory spines near the basis of retinaculum ( Figs. 22 , 29 ). Berdeniella gardinii Salamanna & Raggio, 1984 , has Sc without a connection to R 1, inner lamellae of the aedeagal complex are fused, the cavity in the distal end of basal apodeme is missing, the gonostyle is not strengthened in the middle, the hypandrium has four cells, and the surstyle with only one small sensory spine near the basis of retinaculum.

Etymology. The new species is dedicated to Karel Kočí (Management of the Jeseníky PLA, Jeseník – Bukovice, Czech Republic), who kindly supported my research in north-western Moravia for many years.

Bionomics. Unknown. The adults were collected on shores of mountain rivers and streams, meadow brooks, pasture drains and forest swamps, as well in wet avalanche scars. Distribution. Czech Republic, northern Moravia.

Figures

Figs. 16-24. Berdeniella kocii sp. nov., J. 16 – head; 17 – facets; 18 – apical antennomeres; 19 – dorsal view of terminal lobe of labium; 20 – maxilla and maxillary palpus; 21 – lateral view of thoracic sclerites; 22 – lateral view of epandrium and surstylus; 23 – dorsal view of apodemal cavity (variability); 24 – lateral view of aedeagal complex. Scales = 0.1 mm.

Figs. 25-31. Berdeniella kocii sp. nov., J. 25 – basal antennomeres; 26 – wing; 27 – dorsal view of fore claw; 28 – lateral view of gonocoxite and gonostyle; 29 – dorsal view of epandrium and surstyli; 30 – dorsal view of aedeagal complex and gonopode; 31 – dorsal view of apodemal cavity (variability). Scales = 0.1 mm (Figs. 25, 27-31); 1 mm (Fig. 26).