Agonoscena klapperichi, Malenovský & Lauterer & Labina & Burckhardt, 2012

Malenovský, Igor, Lauterer, Pavel, Labina, Eugenia & Burckhardt, Daniel, 2012, Jumping plant-lice (Hemiptera: Psylloidea) of Afghanistan, Acta Entomologica Musei Nationalis Pragae 52 (1), pp. 1-22 : 13-16

Agonoscena klapperichi sp. nov.

( Figs. 15–21 )

Type locality. Afghanistan, Nuristan, Bashgul Valley, at the Kabul river, 1200 m.

Material examined. HOLOTYPE: ♀, NURISTAN: ‘ Baschgultal (1200 m) / 10.4.1953 am Kabulfluss / J. Klapperich leg. Afgh. // HOLOTYPE, slide 1/5–5/5 / Agonoscena / klapperichi sp. nov. / det. Malenovský, Lauterer, / Labina & Burckhardt, 2012’ ( MMBC; slide-mounted on five slides in glycerin-gelatin and Liquid de Swan).

Description. Adult. Coloration (from slide-mounted specimen). Head and pronotum light with dark brown pattern consisting of several curved streaks and lines. Antenna pale with entire segments 1 and 9–10, basal half of segment 2 and apices of segments 4 and 6 darker brown. Mesopraescutum and mesoscutum marbled dark brown. Forewing membrane light brown, bearing a dark brown pattern consisting of many densely spaced small spots, confluent especially in the subapical part of the wing and along apices of veins, lighter brown and less distinct in the proximal half of wing; membrane lighter medially in cells r 2, m 1 and m 2 at wing margin and in the distal-posterior corner of cu 2; veins densely spotted dark brown, apices of veins Rs, M 1, M 2 and Cu 1a, and basal portions of Rs, M and Cu 1b light ( Fig. 15 ). Hind wing clear, infuscated brown basally.

Structure. Head broadly rounded anteriorly. Coronal suture almost fully developed, indistinct only at posterior vertex margin. Genal processes absent. Eyes hemispherical. Clypeus globular, bearing a group of several setae anteriorly. Antenna 10-segmented, relatively short (shorter than head width), flagellar segments robust, weakly widening to apex ( Fig. 20 ); a single oval rhinarium situated subapically on each of segments 4–9; terminal setae 0.8 and 1.05 times as long as segment 10 ( Fig. 21 ). Propleurites subequal. Forewing ovate, widest in the middle, broadly rounded apically ( Fig. 15 ); vein C+Sc convex, broad, indistinctly delimited towards cell c+sc; costal break developed; pterostigma developed, about half as wide as adjacent part of cell r 1; bases of veins Rs, M+Cu 1 and M indistinct; veins raised, covered in minute setae; surface spinules relatively large, forming irregular hexagonal pattern ( Fig. 16 ), present in all cells and reaching veins. Hind wing with seven equidistant costal setae basally and one curved seta distally. Metacoxa with weakly raised tubercular meracanthus and with relatively slender, small tubular process on trochanteral cavity ( Fig. 18 ). Metatibia smooth basally, with an open crown of eight evenly spaced sclerotised stout spurs and five unsclerotised thickened setae apically. Metabasitarsus with a single sclerotised spur subapically. Female terminalia relatively short; dorsal margin of proctiger, in lateral view, with median hump, convex distal of circumanal pore ring ( Fig. 17 ); ventral valvula with a row of five distinct ventral teeth; dorsal valvula cuneate, weakly curved downwards ( Fig. 19 ). Male and larva unknown.

Measurements (in mm). Head width: 0.57; antenna length: 0.51; forewing length: 1.56; forewing width: 0.74; metatibia length: 0.49; female proctiger length: 0.42; circumanal pore ring length: 0.19; female subgenital plate length: 0.29.

Differential diagnosis. Agonoscena Enderlein, 1914 includes thirteen described species in the Palaearctic, Afrotropical and Oriental biogeographical Realms ( BURCKHARDT & LAUTERER 1989, LI 2011). Agonoscena klapperichi sp. nov. shares with the other described Agonoscena species the presence of a well-developed nodal line on the forewing and the ventrally serrate ventral valvula, but it differs in the more or less uniformly dark forewing which lacks a well-delimited zig-zag pattern along the outer margin, and a well-delimited transverse band stretching from base of pterostigma to apex of cell Cu 1b. Agonoscena klapperichi sp. nov. resembles A. bimaculata Mathur, 1973 , from Iran and Pakistan in the body size, the structure and coloration of the forewing (wing apex broadly rounded, pterostigma present, vein C+Sc broad and convex, surface spinules relatively large and arranged into an irregular hexagonal pattern, membrane with pattern relatively dark and expanded), the structure of the metacoxa (meracanthus weakly raised, tubular process on trochanteral cavity relatively small and slender), and the female terminalia (female proctiger in profile with convex dorsal margin and a relatively long circumanal pore ring) ( MATHUR 1973, BURCKHARDT & LAUTERER 1989). Besides the different forewing pattern (in A. bimaculata consisting of two well-delimited transverse dark brown bands along the outer wing margin and the nodal line widely separated by a transparent piece of membrane), A. klapperichi sp. nov. differs from A. bimaculata also in the slightly shorter terminal setae on the antenna (in A. bimaculata 0.9 and 1.2 times as long as segment 10, in A. klapperichi sp. nov. 0.8 and 1.05 times), the relatively shorter and broader forewing (in A. bimaculata , the ratio forewing length/width = 2.27–2.41 while in A. klapperichi sp. nov. this ratio equals to 2.11) and the narrower pterostigma (in A. bimaculata , the pterostigma is about as wide as the adjacent part of the cell r 1 (see BURCKHARDT & LAUTERER 1989), in A. klapperichi sp. nov. about half as wide).

BURCKHARDT & LAUTERER (1989) proposed a phylogeny for Agonoscena which is partly based on characters of the male terminalia. More material, especially male specimens, are needed to place A. klapperichi sp. nov. into their phylogenetic scheme.

Etymology. Named after the entomologist Johann Friedrich Klapperich (1913–1987) who collected the holotype of A. klapperichi sp. nov. and many other psyllids cited in the paper.

General distribution. Known only from the type locality in north-eastern Afghanistan.

Host plant. Unknown. Other species of Agonoscena are associated with Pistacia , Rhus (both Anacardiaceae ), Ruta (Rutaceae) , Peganum (Zygophyllaceae) , and perhaps also Xanthoceras (Sapindaceae) and Reaumuria (Tamaricaceae) ( BURCKHARDT & LAUTERER 1989, LI 2011).

Figures

Figs. 15–16. Agonoscena klapperichi sp. nov., holotype. 15 – forewing; 16 – forewing, detail showing part of membrane between veins Rs and bifurcation of M.

Figs. 17–23. 17–21 – Agonoscena klapperichi sp. nov., holotype: 17 – female terminalia, with detail of structure of circumanal pore ring, lateral view; 18 – metacoxa, lateral view; 19 – dorsal valvula and apex of ventral valvula, lateral view; 20 – antenna; 21 – antennal segment 10. 22–23 – Trioza urticae (Linnaeus, 1758), paramere, inner surface, lateral view. 22 – specimen from Afghanistan, Baghlan province; 23 – specimen from the Czech Republic, Moravia. Scale bars: 16–17, 19, 21–22: 0.1 mm; 18, 20: 0.05 mm.