Panurginus romani Aurivillius

Romankova, Tatiana G. & Astafurova, Yulia V., 2011, Bees of the genus Panurginus in Siberia, Far East of Russia, and Allied Areas (Hymenoptera: Andrenidae, Panurginae), Zootaxa 3112, pp. 1-35 : 32-33

14. Panurginus romani Aurivillius

Panurginus romani Aurivillius, 1914: 96 , Ƥ; Osytshnjuk, 1978: 369; 1995: 527.

Diagnosis. Although exteriorly Panurginus romani fits into the herzi- group of species with shagreened metasomal terga, by the general shape of its pregenital/genital structures, this species belongs to the niger -group with narrow gonostyli, and penis valves apically triangularly widened and bent inside ( P. niger , P. c r a w f o rd i); S6 lacking lateral hair tufts, S7 apically with 2 laterally flattened (ventral view), parallel teeth narrowly separated to base, and S8 with lateral flaps transverse. Female of P. romani can be easily identified by its clypeus with antero-lateral angles protruded, and combination of the following characters: facial fovea well defined, deep, apically widened; labral plate rounded; T1 glossy, smooth or delicately tessellate, impunctate or with sporadic punctures; and the following terga are mostly shagreened.

Geographical distribution. NW Europe to Pacific coast (Siberia, Russian Far East from Magadan to Primorskiy Kray) ( Aurivillius, 1914, Finland; Warncke, 1972, Sweden, Osytshnjuk, 1995, Komi, Magadan Oblast, Sakhalin; Proshchalykin: 2003, Amur Oblast; 2004, Khabarovsk, Primorskiy Kray; 2007, Birobidjan; Proshchalykin, Kupianskaya, 2005, Kamchatka; Sidorov, 2010, Kemerovo Oblast).

Type material. Not examined.

Other material examined (50Ƥ, 343). RUSSIA: Komi, Ust’-Shugor, Pechora River, 14.VII.1970, 1Ƥ, L. Kupchikova; * Krasnoyarsk Kray, Turukhansk, 18.VII.1988, 1Ƥ, E. Sugonyaev; Kemerovo Oblast, Tisulsk Rayon., 10 km N Polutornik, 10.VII.2009, 4Ƥ, 13, on Rubus ideaus, D. Sidorov ; * Irkutsk Oblast, near Baykalsk, Solzan River, 24.VI.1978, 1Ƥ, 13, V. Shilenkov; 20 km E Baykalsk, Khara-Murin River, 10.VII.1984, 4Ƥ, S. Sinev; Arshan, Tunki River, 1–25. VII.1912, 1 Ƥ, Zvereva; Rassokha, S Irkutsk, 14.VII.1973, 33, D. Kasparyan; * Buryatia, Nizhneangarsk vicinity, 27.VII.1954, 1Ƥ, Popova; Komsomolsk-Selinskiy, 10.VI.1977, 1Ƥ, on Rosa sp., V. Mutin; Khamar-Daban Mountain Range, Salzan River, 16.VI.1979?, 13, Z. Maloletnyaya; * Zabaykalskiy Kray [Chitinskaya Oblast, nom. rej.]: Yamarovka, 18.VI.1905, 1Ƥ, Mikhno ; Chita, Zurmanskiy Pereval, forest, 15.VI.1991, 63, TR; Magadan Oblast, near Nechaevo, 15.VII.1963, 13, L. Ivlev; the upper reaches of Myakit River, 23.VII.1997, 13, V. Mutin; Sakhalin Island, Chekhov Mountain, 26.VII.1986, 1Ƥ, M. Nesterov (Osytshnjuk det.); Novoaleksandrovsk, 11.VII.1981, 23, YP; Tymovsk, 29.VI–2. VII.1981, 7 Ƥ, 13, YP; 15 km NE Yuzhno-Sakhalinsk, 12.VII.1981, 2Ƥ, on Hieracium aurantiacum , YP; Bolshoye Vavayskoye Lake, 19.VII.2002, 1Ƥ, AL; Khabarovsk Kray, 50 km SE Snezhnyi, Dzhaur River, 2.VII.2005, 7Ƥ, 13, AL, MP ( IBSS); Kody River, 60 km, S Lazarev, 2.VIII.2005, 7Ƥ, AL, S. Storozhenko; Myaochan Ridge, Amut Lake, 3.VII.2003, 1Ƥ, 13, V. Mutin; Myaochan Ridge, Tichiy, 28.VI.2005, 23, AL, MP ( IBSS); Kamennaya Pad Nature Reserve, 9.VII.1996, 13, Gritskevich; Amur Oblast, Kundur, 21.VI.2003, 1Ƥ, Bezborodov; 10 km W Ekimchan, 22-23. VI.2004, 1 Ƥ, 83, MP; 40 km NE Fevralsk, 19–20.VI.2004, MP; 2Ƥ, Primorskiy Kray, 70 km SE Chuguevka, Zov Tigra National Park, 16.VII.2010, 4Ƥ, V. Loktionov ( IBSS); Vysokogorsk, 12.VI.1986, 33, AL. FINLAND: Kuopio, 26.VII.1958, 1Ƥ, 27.VI.1959, 13, R. Elfving (R. Elfving det).

Description. MALE. Body length 6−8 mm. Shape. Head slightly transverse (0.8−0.86), wider than mesosoma. Antenna attaining scutellum; pedicel transverse, shorter than F1; F1 as long as wide; F2 slightly transverse, as long as F1; F3 longer than F2, elongate; other flagellomeres longer than wide. Genal area narrower than eye (0.7−0.9), on most of length wide, with longitudinal depression all length along. Labral plate rounded, twice wider than long, shiny, transversally depressed, with central, large, round depression ( Fig. 85 ). Facial fovea short, apically enlarged, wider than, or as wide as distance to eye. Middle basitarsus parallel-sided, narrow, about 5 times as long as wide, with straight apex; TM2 and TM3 conical, elongate; TM4 cordate, as long as wide. Hind basitarsus wide, 3 times as long as wide, parallel-sided, on both ends slightly narrowed, apically straight; conical TM2 and cordate TM3 are elongate; cordate TM4 as long as wide. Mesepisternum flattened. Metasomal terga with marginal zone distinctly depressed, on T1 and T4 ca 1/2, T2 and T3 equaling discal length; premarginal lines mostly abrupt. Metasomal Sterna & Genitalia ( Figs 76–84 ). S6 shoulders widely rounded (>90°); posterior margin medially elevated to arch 3 times wider than deep (posterior view) and inside pubescent; basal margin of the sternum incurved, obtusely angled. S7 apically with narrow bifurcation of parallel, flattened laterally, pointed projections narrowly separated to base and directed ventro-posteriorly (ventral view); posterior shoulders slanting, obtusely angled. S8 neck long, basally wide, narrowing towards distal end; lateral flaps transverse, ca 1/4 neck length; apical plate elongate; basal hill undefined, obtusely rounded (lateral view); ventral surface posteriorly with dense, short pubescence. Gonocoxite without dorso-apical excavation. Gonostylus narrow. Penis valve at middle of length bent inside, apically triangularly enlarged, axe-like, with long internal edge and narrow apical angle; with dorsal, longitudinal line of erect hairs. Sculpture. Moderately shiny, well sculptured. Vertex and paraocular area on upper part shiny, shagreened, with pits a diameter apart (10−15 µm / 0.5−2); paraocular area below glossy, with coarser pits wider spaced (20−30 μm/1−4). Clypeus smooth, with pits 1–4 diameters apart (20−30 µm). Supraclypeal and subantennal areas shiny, delicately tessellate or smooth, with fine pits a few diameters apart. Genal area shiny, with shallow pits 1–2 diameters apart. Frons shagreened, with sparse punctures. Scutum on anterior 1/3 and periphery delicately shagreened, medially smooth, glossy, with pits about a pit diameter apart (10−25 µm / 0.5−1.5). Scutellum glossy, with pits 1−2 diameters apart (10−25 µm / 0.5–4). Metanotum shagreened. Mesepisternum shiny, tessellate, with deep, dense pits a diameter or less apart (20−25 µm / 0.5−1.5). Propodeum laterally matt, shagreened; horizontal part of propodeal triangle with coarse, irregular wrinkles and wide, shiny spaces between; vertical part tessellate, shinier than surrounding surface. Metasomal terga shiny, finely shagreened, with marginal zone shinier and delicately tessellate; T1 usually smoother than following terga, medially glossy, with punctures and small pits (5−10 µm / 1−3 or sparser) (at one male from Chita, with transversal wrinkles); dorso-lateral convexities shiny, smooth, narrowly impunctate; T2−T4 shagreened, including dorso-lateral convexities, with large, dense pits (10−25 µm / 1–2). Metasomal sterna shiny, tessellate, with fine hair pores. Coloration. Antenna brown or black, sometimes, ventrally pale. Clypeus yellow, with distal margin laterally widely black. Wing grayish-brown, veins brown. Tegula brown, translucent, or dark. Legs brownish, yellow on fore tibiae anteriorly, fore and middle tarsi. Hind tarsus usually brown, sometimes yellow. Vestiture. Body abundantly white pubescent. Metasomal terga on disc with dense white hairs thin, short, laterally long. Metasomal sterna with white marginal fringe. T6 and T7 with white fimbria.

FEMALE. Body length 7−8 mm. Shape. Head slightly transverse (0.8–0.9); unremarkably wider than mesosoma. Clypeus with lateral angles produced, as long as wide ( Fig. 104 ). Antenna reaching tegula; pedicel as long as wide; F1 elongate, 1.4 times longer than F2; F2 and F3 transverse; other flagellomeres as long as or slightly longer than wide. Facial fovea well defined, deep, apically widened, truncate, 1–1.5 times wider than distance from eye; lower end closer to eye. Labral plate rounded, 1.5 times wider than long. Genal area little wider than eye, on most of length wide, parallel-sided. Middle basitarsus 3 times as long as wide, parallel-sided; TM2–TM4 conical, elongate. Hind basitarsus 4 times longer than wide, slightly enlarged towards apex; mediotarsi conical, TM2 and TM3 elongate, TM4 as long as wide. Metasomal terga with distinctly depressed marginal zone, on T1 and T4 ca 1/2, T2 and T3 ca 4/5 discal length. Sculpture. Vertex and paraocular area on upper part shiny, delicately tessellate or smooth, with round pits 1–2 diameters apart (10−15 µm / 0.5−2); lower part of paraocular area glossy, with pits coarser and sparser (20−30 µm / 1–4), along premandibular margin widely impunctate. Frons densely tessellate, with sparse punctures and pits (5–10 µm / 1−6). Genal area glossy, on upper 1/3 with pits about 0.5–1 pit diameter apart, along eye widely impunctate; lower 2/3 with pores and pits sparser (10 μm / 3–many). Supraclypeal and subantennal areas shiny, delicately tessellate, with pits a few diameters apart (10 μm / 2–4). Clypeus smooth or basally tessellate, with large, deep, round pits 2–4 diameters apart (20−30 μm). Scutum on anterior half tessellate, posteriorly smooth and glossy; with deep, round pits on disc sparser (10−20 μm / 1–3), on periphery confluent. Scutellum glossy, medially with pits 1–4 diameters apart. Metanotum shagreened, with confluent pits. Mesepisternum shiny, tessellate, with shallow pits 1–2 diameters apart. Metasomal terga with marginal zone tessellate and impunctate; T1 glossy, smooth or delicately tessellate, with several punctures or impunctate; T2 and T3 shiny, medially smooth, laterally shagreened, or Т3 completely shagreened, with fine punctures and pits (5−10 μm / 1−3); T4 tessellate. Metasomal sterna shiny, tessellate, with fine hair pores a few diameters apart. Coloration. Flagellum from F4, beneath light-brown. Wing grayish-brown, veins brown. Spurs yellow. Pygidial plate reddish, or with black apex. Vestiture. Pubescence dominantly white, on head brownish. Metasomal sterna with sparse white hairs long and erect; S4 and S5 with hair fringe dense, long, yellowish. Prepygidial and pygidial fimbriae beige or brownish.

Figures

FIGURES 64 – 85. 64 — 72, Panurginus niger, male: 64 — genitalia dv, 65 — labral plate, 66 — S 8 dv, 67 — S 8 apical plate, 68 — 8 l, 69 — S 7 v, 70 — S 7 l, 71 — S 6 v, 72 — S 6 l; 7 3 — 75, P. m ur a v i ov i, sp. n.: 73 – S 6 v, 74 — labral plate (male), 75 — labral plate (female); 7 6 — 85, P. ro m a n i, male: 76 — genitalia dv, 77 — gonostylus l, 78 — S 8 dv, 79 — S 8 apical plate, 80 — S 8 l, 81 — S 7 v, 82 — S 7 l, 83 — S 6 v, 84 — S 6 l, 85 — labral plate. Abbreviations: l—lateral, d—dorsal, v—ventral views. Lateral views oriented with the ventral side on right.

FIGURES 104 – 117. 104 — Panurginus romani, female, head; 105 — P. h e r z i, female, head; 106 – 111, P. arsenievi, male: 106 — genitalia dv, 107 — clypeus, 108 — S 8 v, 109 — S 8 l, 110 — S 7 v, 111 — S 6 v; 112 – 117, P. nigripes, male: 112 — genitalia dv, 113 — genitalia l, 114 — S 8 dv, 115 — S 8 l, 116 — S 7 v, 117 — S 6 v. Abbreviations: l—lateral, d—dorsal, v—ventral views. Lateral views oriented with the ventral side on right.