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Apanteles thoracartus Liu & Chen, sp. n.
No full textApanteles thoracartus Liu & Chen, sp. n. Figure 10 Description. Female. Body length ca. 2.2 mm, fore wing length ca. 2.6 mm. Head. Less transverse in dorsal view, 1.8 as wide as long (23.4:13.0) and wider than mesosoma (23.4:20.0). Temple shiny, rather constricted posteriorly (Fig. 10 f), with coarse punctures. Face subquadrate, 0.9 as high as wide, relatively dull, heavily punctate, sparsely pubescent (Fig. 10 a), inner margin of eyes subparallel. Ocelli relatively small, distance between fore and a hind ocellus longer than diameter of an ocellus, posterior tangent to the anterior ocellus touching the posterior pair, POL:OD:OOL=3.0:2.0:3.0. Antenna almost as long as body length, penultimate antennomere 2 longer than wide. Mesosoma. Length to breadth and height 34.0:20.0: 22.6. Disc of mesonotum relatively dull, heavily but sparsely and unevenly punctate, interspaces usually larger than diameter of punctures. Scutellar sulcus almost straight, narrow with weak carinae in between. Scutellum highly polished with only trace of punctures. Propodeum relatively shiny, with sparse independent punctures anteriorly, polished except a few short carinae on posterolateral field and around nucha. Mesopleuron highly polished, its anterior half with shallow punctation of even size. Hind femur of normal size. Spines on outer side of hind tibia sparse. Inner spur of hind tibia almost 2 × longer than the outer one, 2 / 5 length of basitarsus, outer spur is 1 / 5 length of basitarsus. Hind basitarsus as long as tarsal segments 2–4 combined. Wings. Pterostigma 3.2 × as long as its widest part. Vein 1 -R 1 (metacarp) 1.4 × longer than pterostigma, it is 6.2 × as long as its distance from apex of the marginal cell. Vein r slightly longer than width of pterostigma, vein r nearly as long as (or faintly shorter than) vein 2 -SR, both veins distinctly angled at their meeting, vein 2 -M half of vein 2 -SR. 1 st discal cell nearly 1 / 4 wider than high. Vein cu-a slightly curved. Vannal lobe beyond its widest part straight and without projecting setae. Metasoma. 1.2 × as long as thorax (40.0:34.0). T 1 narrowed towards apex, basal width 2 × hind width, 2 × longer than basal width. Concave at basal 2 / 5, highly shiny, polished, with only six punctures in an arc posteriorly. T 2 triangular, 1.6 × wider than long in the middle. T 3 1.4 × as long as T 2 (7.0:5.0). Tergites after T 1 relatively shiny, smooth. Hypopygium shorter than apex of abdomen. Ovipositor sheath 1.3 × longer than hind tibia (40.0:30.0), relatively thin. Colour. Body black except abdomen reddish yellow (it becomes darker at base and apex of abdomen). Flagellum and ovipositor sheath yellowish brown. Labrum and mandible dark reddish brown. Palpi, tegulae and spurs of tibiae pale yellow. Legs bright reddish yellow, hind coxa reddish brown. Fore wing membrane hyaline, faintly brownish, vein 1 -R 1, C+SC+R and pterostigma brown, other veins slightly pale. FIGURE 11. Distribution map of lacteus- and laspeyresiella- group of Apanteles species in China. ⋅: Apanteles basicavus Liu & Chen, sp. n.; •: Apanteles brevivena Liu & Chen, sp. n.; ★: Apanteles laspeyresiella Papp, 1972; ˔: Apanteles parapholetesor Liu & Chen, sp. n. FIGURE 12. Distribution map of mycetophilus -group of Apanteles species in China. •: Apanteles artustigma Liu & Chen, sp. n.; ■: Apanteles hainanensis Liu & Chen, sp. n.; ˔: Apanteles magnioculus Liu & Chen, sp. n.; ★: Apanteles odites Nixon, 1965; ♦: Apanteles sparsus Liu & Chen, sp. n.; ♥: Apanteles thoracartus Liu & Chen, sp. n. Male. Unknown. Host. Unknown. Material examined. Holotype: ♀, Chebaling, Shixing, Guangdong, 2003. VIII. 21, Xu Zaifu, No. 20052553. Distribution. China (Province: Guangdong). Etymology. The specific name “ thoracartus ” derives from the Latin “thorac-” and “artus”, referring to the distinctly narrow mesosoma. Remarks. This species is similar to A. odites Nixon, but can be separated by the following: mesoscutum without satin-like sheen (in the latter species satin-like); ovipositor not falcate towards apex (in the latter species markedly falcate); and metacarp shorter (in the latter species extremely long, almost closing the marginal cell).Published as part of Liu, Zhen, He, Jun-Hua & Chen, Xue-Xin, 2015, The lacteus-, laspeyresiella - and mycetophilus - groups of Apanteles Foerster, 1862 (Hymenoptera, Braconidae, Microgastrinae) in China, with descriptions of eight new species, pp. 370-392 in Zootaxa 3949 (3) on pages 387-391, DOI: 10.11646/zootaxa.3949.3.4, http://zenodo.org/record/23865
Amiota bachlii Cao and Chen, sp. nov.
No full textAmiota bachlii Cao and Chen, sp. nov. (Figs 13–16) Diagnosis. Aedeagus basally expanded, nearly triangular and separated from parameres (Fig. 16). Description. Male terminalia. Epandrium small, constricted more than 1 / 2 width mid-dorsally, with 13 setae near posterior to ventral margins per site (Fig. 13). Surstylus, 10 th sternite and hypandrium like as in A. protuberantis sp. nov. (Figs 10, 14). Parameres slightly longer than aedeagus, roundly expanded and with ca. 6 sensilla basally, narrowed distally, slightly acute apically (Figs 15, 16). FIGURES 13–16. Amiota bachlii Cao & Chen, sp. nov. ɗ. 13. epandrium, cercus and surstylus; 14. surstylus and 10 th sternite; 15. parameres, aedeagus and aedeagal apodeme; 16. ditto (For orientation, abbreviations and scale lines see Figs 8–12). Measurements. BL = 2.75 mm in holotype; ThL = 1.24 mm; WL = 2.52 mm; WW = 0.94 mm. Indices: arb = 4 / 2, avd = 0.86, adf = 1.17, flw = 1.50, FW/HW = 0.40, ch/o = 0.06, prorb = damage, rcorb = damage, vb = 0.46, dcl = 0.54, presctl = 0.50, sctl = 1.17, sterno = damage, orbito = 2.50, dcp = 0.27, sctlp = 1.25, C = 1.88, 4 c = 1.62, 4 v = 2.43, 5 x = 1.40, ac = 4.86, M = 0.67, C 3 F = 0.86. Type materials. Holotype ɗ (SCAU, No. 120462), labelled “ CHINA: Jianfeng, Ledong, Hainan Is., 19.v. 2004, ex tree trunk, HW Chen”. Paratypes. 1 ɗ, 2 Ƥ (SCAU, Nos 120713 - 15), same data as the holotype except 16.v. 2005. Distribution. China (Hainan). Etymology. Patronym, in honor of Dr. G Bächli (Zoological Museum, University Zürich).Published as part of He, Xiaofang, Jiang, Jian-Jun, Cao, Hua-Zhi & Chen, Hong-Wei, 2009, Taxonomy and molecular phylogeny of the Amiota nagatai species group (Diptera: Drosophilidae), pp. 53-61 in Zootaxa 2193 on pages 57-58, DOI: 10.5281/zenodo.18944
Imma phuocbuu Buchsbaum, Chi & Chen, sp. nov. from south Vietnam (Lepidoptera: Immidae)
No full textDuring a faunal survey of Lepidoptera in 2023, Imma phuocbuu Buchsbaum, Chi & Chen, sp. nov. was discovered and represents the first record of the genus in Vietnam. A single male specimen was collected from atransitional biotype between mangrove and semi-deciduous dry lowland forest habitats near the coast. The newspecies is distinguished from Imma transversella (Snellen, 1878), I. semicitra Meyrick, 1937 and I. semiclara Meyrick, 1929 by differences in wing pattern and genitalia morphology.Während einer faunistischen Untersuchung von Lepidoptera im Jahr 2023 wurde Imma phuocbuu Buchsbaum, Chi & Chen, sp. nov. entdeckt und stellt den ersten Nachweis der Gattung in Vietnam dar. Ein einzelnes männliches Exemplar wurde in einem Übergangs biotop zwischen Mangroven und halbtrockenen Tieflandwäldern in Küstennähe gesammelt. Die neue Art unterscheidet sich von Imma transversella (Snellen, 1878), I. semicitra Meyrick, 1937 und I. semiclara Meyrick, 1929 durch Unterschiede in der Flügelzeichnung und der Morphologie der Genitalien.Durante un estudio faunístico de Lepidóptera en 2023, se descubrió Imma phuocbuu Buchsbaum, Chi & Chen, sp. nov. y representa el primer registro del género en Vietnam. Se recogió un único espécimen macho en un biotipo de transición entre los hábitats de manglar y de bosque seco semi-caducifolio de tierras bajas cerca de la costa. La nueva especie se distingue de Imma transversella (Snellen, 1878), I. semicitra Meyrick, 1937 e I. semiclara Meyrick, 1929 por diferencias en el patrón alar y la morfología de la genitalia
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe 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
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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