196,244 research outputs found
Distoleon tappa
No full textDistoleon tappa (Walker, 1853) (Figs 5B, 7 A–B, 8A–C, 9A–B, 10A–C, 11A–D, 17A, 18A, 19B) Myrmeleon tappa Walker, 1853: 364. Type locality: Nepal. Myrmecaelurus tappa: Hagen, 1860: 367. Formicaleo tappa: McLachlan, 1868: 278. Distoleon tappa: Stange, 2004: 162. Diagnosis. This species resembles Distoleon verendus but can be distinguished by the narrow median and lateral yellow stripes on thorax (Figs 8A, C), the presence of black stripe below antennal toruli (Fig. 8B), and the lack of cubital marking on forewing (Figs 9 A–B). Moreover, the male sternum 9 is nearly quadrate in ventral view, without deep incision on the posterior median margin (Fig. 11D). Measurement (♂ n=6, ♀ n=3; unit mm). Forewing: ♂ length 30.1–33.5, width 7.7–9.3, ♀ length 36.5–39.5, width 9.8–10.5; hind wing: ♂ length 30.5–33.5, width 6.4–7.7, ♀ length 38.0–38.5, width 8.1–8.2; body length: ♂ 27.0–29.5, ♀ 28.0–29.7. Re-description. Head. Face yellow with a black stripe around the base of antennal toruli; interantennal marking indistinct, yellowish, without setae; frons yellow, covered with short yellow setae (Fig. 8B). Vertex raised, dark brown, with a longitudinal median yellow stripe that is interrupted at middle, covered with short brown setae. Occiput with crown-shaped yellow marking (Fig. 8C). Antennae longer than length of head and prothorax combined; clavate; toruli yellow; scape and pedicel yellow but brownish at base; flagellomeres annulated with brown and pinkish rings, covered with short black setae (Figs 8B, 10C). Maxillary and labial palps, labrum, clypeus, gena and face yellow; labrum with brown, erect setae; clypeus with long yellowish brown and black setae. Labial palpi with distal palpomere spindle-shaped with an acute apex, palpimacula brownish, small and circular, with proximal half slightly narrow (Figs 5B, 8B). Thorax. Brownish black (Fig. 8A). Pronotum narrow, slightly broader than long, with a median and lateral yellow stripes, lateral stripes not reaching to posterior margins; anterolateral margin yellowish; pronotum not wholly covered with short black setae, bare after transverse suture between lateral yellow stripes; anterolateral margins with thin fine and short black setae, lateral margins with a few long black and white setae, posterolateral margin with black setae. Mesonotum brownish black, with a narrow median yellow stripe that is indistinct at prescutum; anterolateral margins of prescutum with a linear yellow stripe, covered with short black, and white setae; posterolateral margins of mesoscutum yellowish brown with long white setae, posteromedially and above wing base with two yellow spots; posterior margin of mesoscutum yellowish brown with long white setae. Metanotum dark brown with a distinct median yellow strip on metascutum; metascutellum medially and posterior margin yellowish brown, posterior margin covered with long white setae. Thoracic pleurites dark brown, covered with long white setae (Fig. 5B). Legs. Foreleg. Coxa yellow, brownish black ventrally with a narrow yellow stripe, covered with yellow setae. Trochanter yellow. Femur yellow, posterodorsally dark brown, covered mostly with short, white setae and a few long, black setae, femoral sense hair longer than fore femora. Tibia yellow with dispersed black dots at setal bases, dorsally with three black rings, covered with black and white setae, tibial spurs curved, as long as tarsomeres 1–4. Tarsomeres yellow, tarsomeres 1–3 brownish apically, last tarsal segment as long as tarsomeres 1–4, black apically. Middle leg. Coxa yellow, brownish at base, covered with long yellow setae. Trochanter yellowish. Femora yellow with mixed black and white setae, femoral sense hair longer than fore femora. Tibia yellow with black dots at setal bases, dorsally with three black rings, covered with black and white setae, tibial spurs curved, as long as tarsomeres 1–4. Hind leg similar to mid leg except last tarsal segment as long as tarsomeres 1–3 and tibia without dorsal black rings (Fig. 5B). Wings. Relatively broad, subacute at apex, membrane hyaline, longitudinal veins with alternate sections of black with many yellow stripes, bearing short black sparse setae; distal part and posterior margin of both wings with forked veins, base of each fork at distal region brownish. Forewing with 7–8 presectoral crossveins; Rs diverged from R beyond cubital fork; Rs with 13–14 branches; pterostigma pinkish; cubital mark indistinct. Hind wing with one presectoral crossvein; Rs diverged from R beyond cubital fork; Rs with 15 branches; pterostigma pinkish; cubital mark indistinct; distal part of hind wing in female with an oblong brown marking at marginal fork of MP1 (Figs 9 A–B). Abdomen. Pale brown, covered with short black and white setae. Male genitalia (Figs 11 C–D): Tergum 9 quadrate; sternum 9 nearly quadrate, slightly wider at lateral margins, covered with long black and a few short white setae; ectoproct oval, ventrolaterally elongated, covered with black setae becoming much longer ventrally, white setae along lateral margins. Female genitalia (Figs 11 A–B): Tergum 8 quadrate; gonocoxite 8 distinct, digitiform, covered with long black setae; tergum 9 ovate; gonocoxite 9 club-shaped, covered with short hair-like setae and robust digging setae; ectoproct round, covered with digging setae. Material examined. PAKISTAN. Azad Jammu and Kashmir state: 8♂, 8♀, District Poonch, Khai Gala, [33°51’4.32612” N, 73°49’46.34681” E], 1757 m, 4.ix.2019, leg. M.A. Hassan (CAU), 7♂, 4♀, District Haveli, Farwad Kahuta, [33°53’03.74” N, 74°06’11.85” E], 1353 m, 5.viii.2019, leg. A. Mateen (CAU); Khyber Pakhtunkhawa province: 2♂, 1♀, District Mansehra, Pakistan Forest Institute (PFI) Filed Station, Shinkiari, [33°28’58.41102” N, 73°17’37.43297” E], 1334 m, 19.viii.2019, leg. R. Hussain (PMNH), 1♀, District Swat, [35.054092°N, 72.564847°E], 760 m, 11.ix.2019, leg. Fazullah (CAU). Distribution. Nepal (Walker 1853); Pakistan: Azad Jammu and Kashmir state and Khyber Pakhtunkhawa province.Published as part of Hassan, Muhammad Asghar, Zheng, Yuchen & Liu, Xingyue, 2020, Taxonomic notes on the antlion genus Distoleon Banks (Neuroptera: Myrmeleontidae) from Pakistan, pp. 347-368 in Zootaxa 4869 (3) on pages 354-359, DOI: 10.11646/zootaxa.4869.3.3, http://zenodo.org/record/441870
Increase in chemiluminescence induced by receptor-independent stimulation of polymorphonuclear cells from psoriatic patients]
No full textUsing a lucigenin-dependent chemiluminescence the authors have measured the "respiratory burst" in polymorphonuclear cells from psoriatic patients and controls. Measurements were performed under stimulation with zymosan, phorbol 12-myristate 13-acetate and latex beads. It has been revealed that the response after stimulation with zymosan increased although there was no significant difference between patients and controls, while the response after stimulation with phorbol 12-myristate 13-acetate and latex beads was significantly increased. Our results suggest an enhanced metabolic activity of polymorphonuclear cells induced by stimuli acting independently from cell-membrane receptors. Therefore an enhanced excitability of polymorphonuclear leukocytes of psoriatic patients is supposed
Abnormal immuno-morphological features of hair follicles in alopecia areata. A quantitative investigation.
No full textStudio morfo-funzionale dell’azione “in vitro” del CAI (carbossiamido-triazolo) sul clone C87 del carcinoma di Lewis.
No full text
Late neogene laminated and opal-rich facies from the Mediterranean region: Geochemical evidence for mechanisms of formation
No full textThe mechanisms for the formation of laminated and opal-rich sediments from southern Italy (Bianco and Vrica) and southern Sicily (Gela) are investigated using a geochemical approach. The Vrica laminates are relatively rich in organic carbon while the Gela laminites are not. Carbon/nitrogen ratios, carbon isotopic composition and lipid content of the organic matter at Vrica indicate that the laminates represent periods of increased input of terrestrial organic matter and enhanced preservation. Based on oxygen isotopic studies of planktonic foraminifera, a basin stratification model is presented to explain the formation of laminites at both Vrica and Gela. Biogenic silica and carbonate content, and the carbon isotopic composition of benthic foraminifera suggest that the Bianco diatomites represent periods of increased productivity. The isotopic composition of planktonic foraminifera from Bianco indicates that the increased productivity was a result of basin eutrophication brought on by continental runoff. The low organic carbon content of the Bianco diatomites is attributed to continuous bottom water ventilation. The results of laminites studies indicate that they are not always rich in organic matter, as generally assumed. Moreover the formation of organic-rich laminites can be the result of enhanced preservation, not increased productivity. Results from Bianco indicate that preservation plays a primary role in controlling the organic carbon content of sediments. © 1988
Tissue expansion improvement: The role of epidermal growth factor
No full textIn order to achieve the most satisfactory results in tissue expansion, a cream containing human recombinant epidermal growth factor (EGF) was applied daily to the expanding skin. The capacity of EGF to stimulate tissue repair has been evaluated on expanded skin flaps, comparing surgical procedures carried out with and without EGF. The present clinical, morphological, immunohistochemical and morphometric results demonstrate that EGF used together with the tissue expander may improve skin repair after mechanical stretching
- …
