Skuhrovec Jiří, Gosik Rafał, Caldara Roberto, Košťál Michael
Group Function of Invertebrate and Plant Biodiversity in Agrosystems, Crop Research Institute, Prague 6 - Ruzyně, Czech Republic.; Email:
Department of Zoology, Maria Curie-Skłodowska University, Akademicka 19, 20-033 Lublin, Poland.; Email:
Zootaxa. 2015 May 4;3955(2):151-87. doi: 10.11646/zootaxa.3955.2.1.
The larvae and pupae of six species of the Palaearctic genus Sibinia Germar, 1817 are described in detail for the first time. Five of them develop in seeds of Caryophyllaceae and belong to Sibinia (s. str.): S. attalica Gyllenhal, 1835; S. femoralis Germar, 1824; S. tibialis Gyllenhal, 1835; and S. viscariae (Linnaeus, 1760), which are included in the S. femoralis group, and S. sicana Ragusa, 1908, which is included in the S. unicolor Fåhraeus, 1843 group. The sixth species is S. sodalis Germar, 1824, which develops in seeds of Plumbaginaceae and belongs to the subgenus Dichotychius Bedel, 1885. The larvae and pupae of these species are compared with those previously described for some species of the third subgenus, Microtychius Casey, 1910 from the Americas. Some larval characters, but no pupal ones, are useful to support the three subgenera and the two previously mentioned groups of Sibinia s. str., which were previously postulated based on a few adult morphological characters. The immatures of Sibinia are also compared with those of the closely related genus Tychius Germar, 1817, providing some distinctive characters between both genera. New bionomic data on larval and pupal development and adult emergence are reported for all the described species. These data suggest that species in this genus are highly homogeneous in life history traits.
首次详细描述了古北区1817年命名的西宾叶甲属（Sibinia Germar）6个物种的幼虫和蛹。其中5种在石竹科植物种子中发育，属于西宾叶甲属（狭义）：1835年命名的阿氏西宾叶甲（S. attalica Gyllenhal）；1824年命名的股胫西宾叶甲（S. femoralis Germar）；1835年命名的胫节西宾叶甲（S. tibialis Gyllenhal）；以及属于股胫西宾叶甲类群的1760年命名的粘叶西宾叶甲（S. viscariae (Linnaeus)），和1908年命名的西西里西宾叶甲（S. sicana Ragusa），后者属于1843年命名的单色西宾叶甲（S. unicolor Fåhraeus）类群。第六个物种是1824年命名的索氏西宾叶甲（S. sodalis Germar），它在蓝雪科植物种子中发育，属于1885年命名的二叉叶甲亚属（Dichotychius Bedel）。将这些物种的幼虫和蛹与之前描述的来自美洲的1910年命名的第三亚属微叶甲亚属（Microtychius Casey）的一些物种的幼虫和蛹进行了比较。一些幼虫特征（而非蛹的特征）有助于支持这三个亚属以及之前基于少数成虫形态特征假设的西宾叶甲属（狭义）的上述两个类群。还将西宾叶甲属的未成熟阶段与近缘的1817年命名的叶甲属（Tychius Germar）的未成熟阶段进行了比较，给出了两个属之间的一些显著特征。报告了所有描述物种幼虫和蛹发育以及成虫羽化的新生物数据。这些数据表明该属物种在生活史特征上高度一致。
