186,428 research outputs found
Anaceratagallia turanica Dubovsky 1966
No full text<i>Anaceratagallia turanica</i> Dubovsky, 1966 <p> <i>Anacertagallia</i> <i>turanica</i> Dubovsky, 1966: 107. <i>Anaceratagallia turanica</i> (Dubovsky, 1966): Dlabola (1981). Recorded distribution in Iran: North.</p>Published as part of <i>Mozaffarian, Fariba & Wilson, Michael R., 2016, A checklist of the leafhoppers of Iran (Hemiptera: Auchenorrhyncha: Cicadellidae), pp. 1-63 in Zootaxa 4062 (1)</i> on page 42, DOI: 10.11646/zootaxa.4062.1.1, <a href="http://zenodo.org/record/256796">http://zenodo.org/record/256796</a>
Anaceratagallia tianshanica Dubovsky 1970
No full text<i>Anaceratagallia tianshanica</i> (Dubovsky, 1970) <p> <i>Agallia tianshanica</i> Dubovsky, 1970: 35.</p> <p> <i>Anaceratagallia tianshanica</i> (Dubovsky, 1970): Dlabola (1981). Recorded distribution in Iran: North.</p>Published as part of <i>Mozaffarian, Fariba & Wilson, Michael R., 2016, A checklist of the leafhoppers of Iran (Hemiptera: Auchenorrhyncha: Cicadellidae), pp. 1-63 in Zootaxa 4062 (1)</i> on page 42, DOI: 10.11646/zootaxa.4062.1.1, <a href="http://zenodo.org/record/256796">http://zenodo.org/record/256796</a>
Macrosteles razvjazkinae Dubovsky 1966
No full text<i>Macrosteles razvjazkinae</i> Dubovsky, 1966 <p> <i>Macrosteles razvjazkinae</i> Dubovsky, 1966: 158.</p> <p> <i>Macrosteles razvjazkinae</i> Dubovsky, 1966: Dlabola (1981). <i>Macrosteles razviaskinae</i> Dubovsky, 1966: (misspelling): Mirzayans (1995). Recorded distribution in Iran: North.</p>Published as part of <i>Mozaffarian, Fariba & Wilson, Michael R., 2016, A checklist of the leafhoppers of Iran (Hemiptera: Auchenorrhyncha: Cicadellidae), pp. 1-63 in Zootaxa 4062 (1)</i> on pages 21-22, DOI: 10.11646/zootaxa.4062.1.1, <a href="http://zenodo.org/record/256796">http://zenodo.org/record/256796</a>
Limotettix ferganensis Dubovsky 1966
No full text<i>Limotettix ferganensis</i> Dubovsky, 1966 <p> <i>Limotettix striola ferganensis</i> Dubovsky, 1966: 181. <i>Limotettix striola ferganensis</i> Dubovsky, 1966: Dlabola (1981). Recorded distribution in Iran: Northwest.</p>Published as part of <i>Mozaffarian, Fariba & Wilson, Michael R., 2016, A checklist of the leafhoppers of Iran (Hemiptera: Auchenorrhyncha: Cicadellidae), pp. 1-63 in Zootaxa 4062 (1)</i> on page 19, DOI: 10.11646/zootaxa.4062.1.1, <a href="http://zenodo.org/record/256796">http://zenodo.org/record/256796</a>
Pseudophlepsius ferganensis Dubovsky 1966
No full textPseudophlepsius ferganensis Dubovsky, 1966 (Figs. 72–73) This taxon is known to us only by the original description. Since it was published in Russian, here we provide its translation with comments in square brackets. “Smaller and slenderer than previous [i.e., P. binotatus], pale colored species. Main body coloration ash gray. Pattern similar to that of P. comma Hpt. [= P. binotatus], but less dense and paler. Differs well from it in aedeagus structure. Lateral lobes of aedeagus ribbon-shaped in lateral view, with protrusion in upper half on dorsal side; their apices angularly pointed, not elongated. Dorsal process straight, fingershaped, smoothly pointed. Pygofer lobe process short, spiny. Body length: ♁, 5.0– 5.2 mm; ♀, 6.2 mm. Uzbekistan, central Ferghana, Yazyavan Steppe between Khamzaabad and Yazyavan, four males, one female, two nymphs from Alhagi in dune sands, 8. VII. 1963 ”. For comparison, Dubovsky (1966) gives a drawing of the aedeagus of P. binotatus with elongated apices (Fig. 71). In fact, P. ferganensis does not differ from P. binotatus in the body length and only slightly if ever differs from it in the shape of aedeagus stem apices, since in P. binotatus their shape is highly variable. Still, it differs distinctly from P. binotatus by straight and smoothly pointed basal processes of aedeagus (Fig. 72). The shape of style is the same as in P. binotatus (Fig. 73). Eremophlepsius and Pseudophlepsius are closely related taxa. Emelyanov (1977) and Mityaev (2002, 2015) consider them to be synonyms and include P. binotatus into Eremophlepsius; in Emelyanov (1977), Pseudophlepsius is treated as a separate subgenus. Still, Emelyanov (1999) and Zahniser & Dietrich (2013) consider them separate genera. Indeed, these two taxa distinctly differ in the shape of the subgenital plates and styles, whereas within each taxon their shape is similar. Possibly, molecular analysis can be used to more accurately determine their rank.Published as part of Tishechkin, Dmitri Yu., 2023, Contributions to the study of the subtribe Eremophlepsiina Dmitriev, 2002 (Hemiptera: Cicadellidae: Deltocephalinae: Opsiini), pp. 573-583 in Zootaxa 5270 (3) on page 582, DOI: 10.11646/zootaxa.5270.3.8, http://zenodo.org/record/786357
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Macropsis validiuscula Dubovsky 1966
No full textMacropsis validiuscula Dubovsky, 1966 Figs. 2–7, 17– 46 Description. Body green or brownish yellow to brown, apex of crown without black spot in all specimens studied (Figs. 2–6). Forewings semihyaline, of same colour as body or infumose, darkest on clavi and in apical parts. Green colour form (Figs. 2, 5) is most abundant in all localities studied. Abdominal apodemes of 2 nd tergite in male narrow, separated by broad rounded notch, with more or less rounded tips slightly bent inwards (Figs. 17–20). Sternal apodemes as a rule with expanded bases and wide lobes, strongly convergent or even somewhat overlapping with each other (Figs. 21–25). Pygofer processes almost straight or slightly bent forward (Figs. 29–30). Penis in side view rather long and narrow (Figs. 26–28). Styles as in other poplar- or willow-dwelling Macropsis species (Figs. 31–33). 2 nd valvulae of ovipositor with 1 + 2 or 2 + 2 preapical teeth (Figs. 34–36). FIGURES 17–36. Macropsis validiuscula Dubovsky. 17–20 ―male abdominal apodemes of the 2 nd sternite; 21–25 —the 2 nd tergite; 26–28 ―penis, lateral view; 29–30 ―pygofer process, lateral view; 31–33 ―end of style; 34–36 ―the 2 nd valvulae of ovipositor. Body length (including tegmina): ♂, 4.4–4.8 mm; ♀, 5.0–5.6 mm. Nymph almost hairless, green to yellowish-green with minute brown dots (Fig. 7). M. validiuscula, M. graminea (Fabricius, 1798) and M. suspecta Tishetshkin, 1994 form a group of closely related poplar-feeding species. M. validiuscula differs from two other species by the absence of black frontal spot and by the shape of 2 nd abdominal apodemes. In addition, these three species are allopatric. M. graminea occurs in Europe including European Russia, in Northern Caucasus, Transcaucasia, North Iran (Elburs Mtn. Range), Northern and Eastern Kazakhstan, in southern part of West Siberia and in North America (introduced). The range of M. suspecta includes North Tien-Shan Mts. (Northern shore of Issyk-Kul’ Lake, Kyrgyzstan), South-Eastern Kazakhstan (Dzhungarskiy Alatau Mtn. Range), South Siberia from Altai Mts. to Transbaikalia, South Yakutia, the Russian Far East, and adjacent regions of China. M. validiuscula up to now was found only in West Tien Shan and Hissar-Darvaz Mts. Host. Populus spp. from the section Aigeiros including both native (P. afganica) and introduced (P. nigra var. pyramidalis) species and hybrids (P. x jablokowii). Calling signal. In poplar-feeding Macropsis species no clear-cut distinction exists between calling and courtship signals. As a rule, single male produces simple signal (calling in the strict sense), but occasionally it can produce more complex signal containing additional components. Courting male sitting close to female produces only complex signal. Simple calling of M. validiuscula is a phrase lasting from 2 to 8 – 10 s (Figs. 37–38, 40 – 42). Complex signal (Figs. 39, 43–46) consists of the same phrase as a simple one (Figs. 43–44), followed by low-amplitude trill sounding like monotonous buzz (the second half of the oscillogram on Fig. 44 and the first half of the oscillogram on Fig. 45) and a succession of alternating long and short pulses (Fig. 46). Material examined. 1 — Kyrgyzstan, Chatkal Mtn. Range, Sary-Chelekskiy Biosphere Nature Reserve, environs of Arkyt Village, D. Tishechkin, from Populus x jablokowii: 20. VII. 2008, 6 ♂, 34 ♀, calling signals of 3 ♂ recorded on disk at 20–21 o C; 2. VII. 2009, 14 ♂, 4 ♀, 5 nymphs; 3. VII. 2011, 3 ♂, 3 ♀, calling signals of 3 ♂ recorded on disk at 21 o C; from P. afganica: 30. VI – 6. VII. 2009, 6 ♀; 12. VII. 2011, 1 ♀; from P. nigra var. pyramidalis, 8. VII. 2009, 1 ♀ (ZMMU). 6 ― Kyrgyzstan, Ferghana Mtn. Range, environs of Arslanbob Town (type locality), from “black poplar”, G. Anufriev, 14. VII. 1991, 6 ♂, 7 ♀, 1 nymph (ZMMU), 4 ♂, 22 ♀, 1 nymph (coll. Anufriev). 7 ― Kyrgyzstan, Ferghana Mtn. Range, environs of Kara-Alma Village, from “black poplar”, G. Anufriev, 19. VII. 1991, 3 ♀ (ZMMU), 6 ♀ (coll. Anufriev). Distribution. West Tien Shan Mts. (foothills and midlands of Karatau, Karzhantau, Chatkal and Ferghana Mtn. Ranges) and Hissar-Darvaz (Turkestan and Hissar Mtn. Ranges). Remark. Interpretation of this species is based on the original description and investigation of material from the type locality.Published as part of Tishechkin, Dmitri Yu., 2014, Taxonomic study of Central Asian species of the genus Macropsis Lewis, 1836 (Homoptera: Auchenorrhyncha: Cicadellidae: Macropsinae). II: Redescriptions of poorly known species, new synonyms, and description of a new willow-dwelling species, pp. 103-118 in Zootaxa 3815 (1) on pages 104-108, DOI: 10.11646/zootaxa.3815.1.7, http://zenodo.org/record/22752
Appropriate Similarity Measures for Author Cocitation Analysis
No full textWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
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