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The Neotropics harbor an enormous diversity of tachinid flies (Diptera: Tachinidae), yet the fauna remains poorly understood. This is especially true of the tribe Blondeliini, which is particularly diverse in this region and in great need of taxonomic attention. Here, the Neotropical blondeliine genus Erythromelana Townsend is revised. This genus is widely distributed from southern Mexico to northern Argentina, with the Andes being a hotspot of diversity. Known hosts belong to the genus Eois Hübner (Lepidoptera: Geometridae). This revision includes the redescription of three previously described species and the description of 11 new species based on characteristics of adults and immatures. The new species are E. arciforceps sp. nov., E. catarina sp. nov., E. convexiforceps sp. nov., E. cryptica sp. nov., E. curvifrons sp. nov., E. distincta sp. nov., E. ecuadoriana sp. nov., E. eois sp. nov., E. leptoforceps sp. nov., E. napensis sp. nov., and E. woodi sp. nov. A morphological database of 62 characters was constructed to assess morphological variation within and among species and species groups using Principal Components Analysis. Means and medians for these morphological traits were calculated to infer phylogenetic relationships using parsimony. Additionally, a maximum likelihood phylogenetic analysis was performed using COI mtDNA sequences for a subset of eight species. Nominal species E. obscurifrons (Wulp) is treated as a nomen dubium within Erythromelana. Two species previously assigned to Erythromelana appear to represent distinct genera with unclear relationships to this genus and are reinstated as monotypic genera: Myiodoriops marginalis Townsend and Euptilodegeeria obumbrata (Wulp), revived status. Biological and phylogenetic data are used to infer modes of diversification within Erythromelana.
Birding and butterfly watching have been popular outdoor activities for decades. Now, dragonfly watching is catching on as a fascinating and enjoyable pursuit. Dragonflies are large, colorful insects with amazing and easily observed behavior. Noted entomologist Dr Robert Cannings introduces students, naturalists and outdoor enthusiasts to the world of dragonflies. In this compact book, he shows readers where to find dragonflies and how to watch and study them in the field. In the introduction, Dr Cannings outlines the natural history of these insects - their structure, life cycles, habitats and behavior. Then he describes the 88 species known in British Columbia and the Yukon, noting habitat preferences and distribution. To make identification easy, each description has one or more color photographs and comparisons with similar species.
The present volume presents a detailed account of the taxonomy, biology and distribution of the European species of Siphonini. This group of tachinid Diptera totals 58 species in Europe of which 6 are here described as new to science. In most species, the immatures live as endoparasitolds of lepidopterous larvae, but a few species even attack tipulid larvae. Several species of Siphonini are of great economic interest as agents for the control of lepidopterous and tipulid pests in agriculture and forestry. An analysis and proposal on the systematic position of the Siphonini is given together with a key to larger taxonomic entities of Tachinidae. The generic classification is also critically emphasized. A separate chapter summarizes aspects of the group's natural history: life-cycles, mating behaviour, oviposition strategies, etc. The taxonomic part contains identification keys to genera and species, and for each species a diagnosis, a description and accounts on the nomenclature, biology and distribution is given. A separate catalogue details the provincial distribution of the 47 species occurring in Fennoscandia and Danmark. No less than 275 line drawings and 15 colour illustrations accompany the text.