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A new species of Olecryptotendipes Zorina from China (Diptera, Chironomidae)
No full textYan, Chuncai, Liu, Ting, Zhao, Guangjun, Shi, Yafeng, Wang, Xinhua (2017): A new species of Olecryptotendipes Zorina from China (Diptera, Chironomidae). Zootaxa 4299 (2): 291-296, DOI: https://doi.org/10.11646/zootaxa.4299.2.1
FIGURE 5A–D. P in Two new and one newly recorded species of Polypedilum Kieffer 1912 with DNA barcodes from Oriental China (Chironomidae: Diptera)
No full textFIGURE 5A–D. P. (U.) paraconvictum Yamamoto, Yamamoto & Hirowatari. A—Body in ventral view; B—Dorsal view of hypopygium; C—Ventral view of hypopygium; D—Superior volsella.Published as part of Yan, Chuncai, Song, Chao, Liu, Ting, Zhao, Guangjun, Hou, Ziyuan, Cao, Wei & Wang, Xinhua, 2017, Two new and one newly recorded species of Polypedilum Kieffer 1912 with DNA barcodes from Oriental China (Chironomidae: Diptera), pp. 109-118 in Zootaxa 4238 (1) on page 116, DOI: 10.11646/zootaxa.4238.1.8, http://zenodo.org/record/34504
Two new and one newly recorded species of Polypedilum Kieffer 1912 with DNA barcodes from Oriental China (Chironomidae: Diptera)
No full textYan, Chuncai, Song, Chao, Liu, Ting, Zhao, Guangjun, Hou, Ziyuan, Cao, Wei, Wang, Xinhua (2017): Two new and one newly recorded species of Polypedilum Kieffer 1912 with DNA barcodes from Oriental China (Chironomidae: Diptera). Zootaxa 4238 (1): 109-118, DOI: https://doi.org/10.11646/zootaxa.4238.1.
Olecryptotendipes Zorina.
No full textKey to known males of the genus Olecryptotendipes in the world 1 Acrostichals absent, R bare.............................................................. O. secundus (Zorina) - Acrostichals present, R with setae.........................................................................2 2 Anal point parallel-sided, thorax without dark brown spots.....................................................3 - Anal point not as above, thorax with dark brown spots........................................................4 3 Inferior volsella absent, antepronotals 2....................................................... O. lenzi (Zorina) - Inferior volsella lobe-like, antepronotals 6–7............................................ O. exilis Yan, Wang & Bu 4 Legs without spots, superior volsella banana-like without projection....................... O. arienus Yan & Wang sp.n - Legs with spots, superior volsella curved basally, straight distally, with large posterolateral projection................................................................................................ O. melasmus Yan, Wang & BuPublished as part of Yan, Chuncai, Liu, Ting, Zhao, Guangjun, Shi, Yafeng & Wang, Xinhua, 2017, A new species of Olecryptotendipes Zorina from China (Diptera, Chironomidae), pp. 291-296 in Zootaxa 4299 (2) on page 295, DOI: 10.11646/zootaxa.4299.2.10, http://zenodo.org/record/83590
Olecryptotendipes lenzi Zorina 2001
No full textOlecryptotendipes lenzi (Zorina, 2001) Cryptotendipes lenzi Zorina, 2001: 31; Yan, Wang & Bu, 2005: 4. Olecryptotendipes lenzi (Zorina) Zorina, 2007: 350; Yan, Wang & Bu, 2012: 45 Specimens examined. 9♂♂, CHINA: Xinjiang Autonomous Region, Habahe River, Baihualin Natural Conservation, 15–16.VII.2002, sweep net, H. Tang Diagnostic characters. Thorax and legs without blackish brown spots. Tergite IX with a digitiform shoulderlike posterior margin, superior volsella without protrusion and covered by microtrichia, inferior volsella absent and anal point narrow parallel-sided. Gonostylus curved inwards in its distal part. Distribution. Russian Far East, Palaearctic China (Xinjiang Uygur Autonomous Region).Published as part of Yan, Chuncai, Liu, Ting, Zhao, Guangjun, Shi, Yafeng & Wang, Xinhua, 2017, A new species of Olecryptotendipes Zorina from China (Diptera, Chironomidae), pp. 291-296 in Zootaxa 4299 (2) on page 295, DOI: 10.11646/zootaxa.4299.2.10, http://zenodo.org/record/83590
Olecryptotendipes exilis Yan, Wang & Bu 2012
No full textOlecryptotendipes exilis Yan, Wang & Bu, 2012 Olecryptotendipes exilis Yan, Wang & Bu, 2012: 43 Specimens examined. Type material: Holotype and Paratype. 2♂♂. CHINA: Hainan Province, Ledong Li Nationality Autonomous County, Jianfengling Nature Conservation area, 18°14'45.96"N, 109°30'42.69"E, 21.iv.1985, X. Wang. Diagnostic characters. Thorax and legs without blackish brown spots. Anal tergite bands Y-shaped, superior volsella apically with a partially sclerotized beak-like protrusion and a slender spur-like posterolateral projection, anal tergite with posterolateral weak lobes and anal point parallel-sided. Gonostylus swollen at base, curved inwards and slender to apex. Distribution. Oriental China (Hainan province).Published as part of Yan, Chuncai, Liu, Ting, Zhao, Guangjun, Shi, Yafeng & Wang, Xinhua, 2017, A new species of Olecryptotendipes Zorina from China (Diptera, Chironomidae), pp. 291-296 in Zootaxa 4299 (2) on page 294, DOI: 10.11646/zootaxa.4299.2.10, http://zenodo.org/record/83590
FIGURE 3 in A new record and two new species of Cryptochironomus Kieffer, 1918 from China (Diptera, Chironomidae)
No full textFIGURE 3. Cryptochironomus protuberans Yan & Wang sp. n., male. A—frontal tubercles; B—inferior volsella; C—wing; D—hypopygium (dorsal view); E—hypopygium (ventral view).Published as part of Yan, Chuncai, Zhao, Guangjun, Liu, Ting, Guo, Qin, Hou, Ziyuan, Wang, Xinhua & Pan, Baoping, 2016, A new record and two new species of Cryptochironomus Kieffer, 1918 from China (Diptera, Chironomidae), pp. 485-493 in Zootaxa 4208 (5) on page 491, DOI: 10.11646/zootaxa.4208.5.6, http://zenodo.org/record/21186
Olecryptotendipes melasmus Yan, Wang & Bu 2012
No full textOlecryptotendipes melasmus Yan, Wang & Bu, 2012 Olecryptotendipes melasmus Yan, Wang & Bu, 2012: 88. Specimens examined. Type material: Holotype ♂ (BDN No. 04250). CHINA: Shaanxi Province, Baoji City, Feng County, Qinling, Dongyu, 33°54'42.03"N, 106°31'21.10"E, 30. vii.1994, sweep net, W. Bu. Paratype (BDN No. 20598). CHINA: 1♂, Fujian Province, Jianning County, 26°49'51.25"N, 116°50'45.90"E, 25. ix. 2002, light trap, Z. Liu. Diagnostic characters. Thorax and legs with blackish brown spots. Anal point concave in its median portion, rounded apically, superior volsella curved basally, straight distally, with large posterolateral projection and inferior volsella with reduced lobate caudal projection. Gonostylus swollen at base, concave medially and slender to apex. Distribution. China (Palaearctic China: Shaanxi Province, Oriental China: Fujian Province).Published as part of Yan, Chuncai, Liu, Ting, Zhao, Guangjun, Shi, Yafeng & Wang, Xinhua, 2017, A new species of Olecryptotendipes Zorina from China (Diptera, Chironomidae), pp. 291-296 in Zootaxa 4299 (2) on page 295, DOI: 10.11646/zootaxa.4299.2.10, http://zenodo.org/record/83590
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
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