Platystoma elizabethae, Bodner, L. & Freidberg, A., 2016

Bodner, L. & Freidberg, A., 2016, Taxonomy and immature stages of the Platystomatidae (Diptera: Tephritoidea) of Israel, Zootaxa 4171 (2), pp. 201-245 : 216-218

Platystoma elizabethae n. sp.

( Figs. 11 , 22 , 33 , 44 , 55 , 66, 80, 96)

Diagnosis. This species bears some resemblance to Platystoma malatiense Hennig , except for the following characters: ventral half of face shiny brown, without microtrichia; clypeus microtrichose only marginally; T5 of the male 7–14 times as long as T4 (significantly longer than in all other congeners).

Description. Head ( Figs. 11 , 22 ): Color and vestiture: Head mostly pale to dark brown, with orange-brown areas. Frons sparsely and irregularly microtrichose, with denser microtrichia at orbits and around bases of orbital and vertical setae. Ocellar triangle delimited by thin yellowish line of microtrichia. Lunule orange to dark brown, sometimes dorsomedially microtrichose, with yellowish lines delimiting scapes. Antenna brown to blackish, densely microtrichose (less pronounced in certain angles); pedicel sometimes yellowish or pale brown. Face mostly brown to blackish, with yellowish to orange-brown areas ventrally; dorsal 0.5 mostly grayish microtrichose with small, shiny brown to dark brown area medially; ventral 0.5, dorsally shiny brown to blackish, ventrally matte, and mostly yellowish-orange except blackish areas laterally. Clypeus with conspicuous microtrichose spots (sometimes forming narrow marginal bands): 1 (pair) dorsomedially, 1 (pair) dorsolaterally, 1 (pair) ventrolaterally, and 1 broad spot ventromedially. Palpus brown to dark brown with yellowish base. Chaetotaxy: 1–2 (pairs) orbital setae present; anterior seta, if present, short and setula-like. Postocellar seta absent. Lunule densely setulose. Gena with 2–3 setae and long blackish setulae. Postgena with thin, long, yellowish setulae; occiput with similar but shorter setulae. Ratios: Head: 1.37–1.50; frons anterior: 1.29–1.50; frons posterior: 1.10–1.32; ocellar triangle/frons: 0.27– 0.38; eye: 2.00–2.36; 1st flagellomere: 1.50–2.00; gena/eye: 0.26–0.35; parafacial/gena: 0.17–0.25; posterior orbital/anterior orbital: 1.79–2.75; medial vertical/lateral vertical: 1.06–1.27; posterior orbital/medial vertical: 0.50–0.67; ocellar/medial vertical: 0.41–0.57; ocellar/ocellar triangle: 1.07–1.42.

Thorax: Color and vestiture: Ground color mostly dark brown to black, sometimes with reddish-brown areas, with yellowish-gray microtrichia. Scutum with 5 microtrichose stripes. Postpronotal lobe ground color reddishbrown to dark brown. Posterior corner of postpronotal lobe and median articulation of anepisternum and katepisternum, shiny orange to brown. Scutellum mostly microtrichose, except black spots around bases of setae. Subscutellum dark brown to blackish, grayish microtrichose. Anepisternum with homogenous reticulate pattern of microtrichia. Katepisternum mostly shiny black, except irregularly microtrichose dorsally. Chaetotaxy: Postpronotal lobe with 1 seta and with long, yellowish-white to pale brown setulae. Scapullar setae, if present, thin and setula-like. Presutural supra-alar seta and postsutural supra-alar seta present (presutural seta sometimes setulalike). Anepisternum with short yellowish to pale brown setulae anterodorsally, and long yellowish to pale brown setulae posteriorly and ventrally. Katepisternum with long yellowish to orange setulae. Ratios: Scutum: 0.85–0.94; presutural supra-alar/intra-alar: 0.19–0.34; postsutural supra-alar/intra-alar: 0.40–0.68; postalar/intra-alar: 0.92– 1.12.

Legs: Color and vestiture: Leg type dark. Tarsi with yellowish areas as in genus. Coxae dorsally with fine microtrichia. Femora inconspicuously microtrichose. Chaetotaxy: Coxae anterodorsally setulose. Trochanters ventrally with brown setulae. Femora pale brown to blackish setulose: fore femur anterodorsally with short setulae and posteroventrally with long setulae; mid femur and hind femur mostly short setulose, except long setulae posterodistally and ventrally. Hind metatarsus and 2nd tarsomere with yellowish setulae ventrally.

Wing ( Fig. 33 ): Pattern: Generally non-uniformly reticulate, with small to medium-size sub-hyaline and hyaline spots; combined area of hyaline and subhyaline spots less than combined area of pigmented pattern; larger such spots mostly around periphery of wing; smaller subhyaline spots mostly arranged in two parallel marginal rows along cells r2+3, br, r4+5 and dm; subhyaline spots otherwise irregular or arranged in 1 or several rows. Discrete transverse dark bands present as follows: 1 band from middle of costal cell to anterobasal margin of cell cu1; 1 band from distal tip of costal cell to end of vein A1+Cu2, fading posteriorly; 1 band from costa between subcostal vein and R1 to middle of vein Cu1; 1 broad band aligned with crossvein R-M, extending from costa to posterior margin of cell cu1; 3 somewhat oblique bands beyond level of crossvein DM-Cu, converging medially towards cell r4+5: Proximal two forming "X" shape; apical band C-shaped. Costal cell subhyaline to hyaline with 3–4 large dark spots. Venation: Veins and sclerites mostly dark brown, except yellowish to pale brown costa, humeral, subcostal and stem vein. Vein M ends slightly posterior to wing tip. Crossvein DM-Cu slightly sinuous, without stump vein. Calypters subequal; dorsal calypter with longer fringes than ventral calypter. Halter base and knob brown, stem yellowish-brown. Chaetotaxy: Costa ventrally with seta and long whitish setulae, and with conspicuously long setulae basally. Ratios: Wing: 2.56–2.85.

Abdomen: Structure: Male T4 either shorter, or about as long as T3, less than 0.20 times as long as T5. Female T4 longer than T3 and about as long as T5. Color and vestiture: T1+2 densely and irregularly microtrichose; T3 mostly metallic black with sparse microtrichia; T 4 in male medially microtrichose, in female uniformly and sparsely microtrichose; T 5 in male microtrichose mostly or only in distal 0.5, in female uniformly and more densely microtrichose. Male terminalia ( Figs. 44 , 55 , 66): Epandrium in lateral view dorsoventrally narrowed, posterior margin concave; ventral concavity wide deep; subepandrial sclerite conspicuously elongated and almost completely exposed (in lateral view), anteriorly extended beyond margin of epandrium and posteroventrally with conspicuously long narrow bridges; lateral surstylus short, ventrally broad, anteriorly concaved (in lateral view), posteriorly and apically rounded; medial surstylus broad and ambiguous; prensisetae strongly curved mesally. Terminal filaments equally long, and conspicuously longer than distiphallus. Female terminalia (Fig. 80): 2 spermathecae present; spermatheca short ovoid, with small protuberances. Ratios: Male: T3/T4: 0.50–1.17; T4/T5: 0.06–0.14; T3+4/T5: 0.10–0.30; epandrium: 0.47–0.52; preglans: 1.25–1.40; glans: 1.89–2.31; preglans/glans: 0.33–0.50; acrophallus/preglans+glans: 12.56–14.40; distiphallus/preglans+glans: 5.35–6.47. Female: T3/T4: 1.25–1.36; T4/T5: 1.00–1.14; T3+4/T5: 2.25–2.67; aculeus: 5.00–7.20; cercal unit: 2.00–3.50; cercal unit/aculeus: 0.17–0.19.

Measurements (mm). Body length: 3.60–4.70; wing length: 3.80–4.60.

Material examined. Holotype: Ƌ, ISRAEL, Nahal Keziv , Monfort, 10.iii.1981, A. Freidberg . Paratypes: same collection data as holotype (18Ƌ, 23♀); additional paratypes (all from Israel; for explanation of the variant locality names on the labels, see Comments ): Nahal Keziv, Montfort, 400m, 33°02'N 35°14'E, 24.ii.2011, L. Bodner (6Ƌ, 2♀), AF (3Ƌ, 3♀) ; 24.ii–14.iii.2011, L. Bodner (7Ƌ, 8♀); 2.iii.1987, AF (3Ƌ, 8♀), A. Shlagman (2Ƌ, 7♀), I. Yarom (3Ƌ, 1♀); 4.iii.1976, AF (21Ƌ, 12♀), M. Kaplan (3Ƌ, 4♀); 4.iii.1993, AF (1Ƌ, 1♀); 400m, 33°02'N 35°14'E, 4.iii.2010, AF (1♀); 33°02.635'N 35°14.271'E, 4.iii.2010, AF (1Ƌ); 5.iii.1978, M. Kaplan (1♀); 5.iii.1978, AF (1Ƌ); 33°02.7'N 35°14.6'E, 5.iii.2008, AF (2♀); 9.iii.1982, AF (5Ƌ, 2♀); 10.iii.1981, AF (19Ƌ, 23♀), F. Kaplan (4Ƌ, 4♀), T. Furman (3Ƌ, 2♀); 14.iii.1985, AF (5♀); 33°02'N 35°14'E, 14.iii.2011, AF (11Ƌ, 13♀), D. Furth (2Ƌ, 2♀); 400m, 33°02'N 35°14'E, 14.iii.2011, E. Morgulis (1Ƌ, 14♀), L. Bodner (4Ƌ, 9♀); 17.iii.1983, AF (11Ƌ, 4♀); 18.iii.1973, D. Furth (1♀); 4.iv.1976, AF (1♀); 10.iv.1993, AF (7Ƌ, 2♀).

The holotype ( Fig. 96 ) is double-mounted (minutien pin and polyporus block), in excellent condition, and deposited at the SMNHTAU. Most paratypes are deposited at the SMNHTAU; some paratypes will be deposited at the museums listed in the Material and Methods section.

Distribution. Israel.

Distribution in Israel. Upper Galilee: Lower Nahal Keziv (Montfort).

Adult activity in Israel. February to April.

Etymology. This species is named after our colleague, Elizabeth Morgulis, who has contributed to the senior author's research in many ways. It is an adjective.

Comments. This species has been collected to date only at the Monfort crusader castle and within a radius of about one kilometer from it, constituting one of the most beautiful sites in Israel. The locality names originally used and cited on the labels, i.e., “Montfort”, “Monfort”, “Nahal Keziv”, “Nahal Keziv, Monfort” and “N. Keziv” (Nahal, in Hebrew, meaning river or stream) more or less refer to the same site.

Figures

FIGURES 8 – 18. Head, frontal view. 8. Platystoma arcuatum. 9. P. dalia. 10. P. dimidiatum. 11. P. elizabethae. 12. P. geula. 13. P. malatiense. 14. P. nitidiventre. 15. P. pubescens. 16. P. torridum. 17. P. trigonum. 18. Rivellia israelica. Postocular setae not always visible in this view.

FIGURES 19 – 29. Head, lateral view. 19. Platystoma arcuatum. 20. P. dalia. 21. P. dimidiatum. 22. P. elizabethae. 23. P. geula. 24. P. malatiense. 25. P. nitidiventre. 26. P. pubescens. 27. P. torridum. 28. P. trigonum. 29. Rivellia israelica.

FIGURES 30 – 40. Wing. 30. Platystoma arcuatum. 31. P. dalia. 32. P. dimidiatum. 33. P. elizabethae. 34. P. g e ul a. 35. P. malatiense. 36. P. nitidiventre. 37. P. pubescens. 38. P. torridum. 39. P. trigonum. 40. Rivellia israelica.

FIGURES 41 – 51. Epandrial complex, ventral view. 41. Platystoma arcuatum. 42. P. dalia. 43. P. dimidiatum. 44. P. elizabethae. 45. P. g e ul a. 46. P. malatiense. 47. P. nitidiventre. 48. P. pubescens. 49. P. torridum. 50. P. trigonum. 51. Rivellia israelica.

FIGURES 52 – 62. Epandrial complex, lateral view. 52. Platystoma arcuatum. 53. P. dalia. 54. P. dimidiatum. 55. P. elizabethae. 56. P. g e ul a. 57. P. malatiense. 58. P. nitidiventre. 59. P. pubescens. 60. P. torridum. 61. P. trigonum. 62. Rivellia israelica.

FIGURES 95 – 100. Habitus of newly-described species, holotypes. 95. Platystoma dalia. 96. P. elizabethae. 97. P. geula. 98. P. torridum. 99. P. trigonum. 100. Rivellia israelica.