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28 results for “Syscia”
Fig. 13 in Integrating UCE Phylogenomics With Traditional Taxonomy Reveals a Trove of New World Syscia Species (Formicidae: Dorylinae)
Fig. 13. Distribution map, face view, lateral view of petiole-AIV, and dorsal view of AIII-AIV of Syscia latepunctata (holotype worker), S. borowieci (holotype worker), S. volucris (holotype worker), S. JTL076 (queen, CASENT0614221),S. JTL064 (worker, CASENT0631661), S. JTL033 (worker, CASENT0611831),S. grandis (holotype worker), and S. JTL003 (worker, INB0003213589). Species are in order of mean HW, which is shown in the lower left of the distribution map. Scale bars 0.2 mm. On distribution maps, red dots are sites with UCE sequence data. Red boxes are type locality.
Fig. 9 in Integrating UCE Phylogenomics With Traditional Taxonomy Reveals a Trove of New World Syscia Species (Formicidae: Dorylinae)
Fig. 9. Distribution map, face view, lateral view of petiole-AIV, and dorsal view of AIII-AIV of Syscia pervagata (holotype worker), S. peten (holotype worker), S. JTL074 (worker, MCZ-ENT00511564), S. brachyptera (holotype worker), S. valenzuelai (holotype worker), S. JTL071 (worker, FMNHINS0000095759), S. quisquillis (holotype worker), S. sumnichti (holotype worker), S. JTL060 (worker, CASENT0644220), and S. JTL085 (worker, CASENT0602939). Scale bars 0.2 mm. Species are in order of mean HW, which is shown in the lower left of the distribution map. On distribution maps, red dots are sites with UCE sequence data. Red boxes are type locality.
Fig. 2 in Integrating UCE Phylogenomics With Traditional Taxonomy Reveals a Trove of New World Syscia Species (Formicidae: Dorylinae)
Fig. 2. Variation in Syscia subpetiolar process. (A) Subtriangular with flat to concave posterior margin. (B) Subtriangular with convex posterior margin. (C) Subtriangular with small tooth on posterior margin. (D) Subquadrate. (E) Subtriangular with large acute tooth on posterior margin. F. With fenestra and notch on posterior margin.
Fig. 4 in Integrating UCE Phylogenomics With Traditional Taxonomy Reveals a Trove of New World Syscia Species (Formicidae: Dorylinae)
Fig. 4. Illustrations of Syscia measurements. HL: head length, HW: head width, MSL: mesosoma length, AIIIL: abdominal tergite III length, AIIIW: abdominal tergite III width, AIVL: abdominal tergite IV length, AIIVW: abdominal tergite IV width.
Fig. 12 in Integrating UCE Phylogenomics With Traditional Taxonomy Reveals a Trove of New World Syscia Species (Formicidae: Dorylinae)
Fig. 12. Distribution map, face view, lateral view of petiole-AIV, and dorsal view of AIII-AIV of Syscia tolteca (lectotype worker), S. atitlana (holotype worker), S. lacandona (holotype worker), S. JTL049 (worker, CASENT0644222), S. JTL065 (worker, CASENT0602939), S. amblyogyna (holotype worker), S. ticomontana (holotype worker), S. JTL017 (worker, INB0003693097), S. JTL079 (worker, CASENT0642985), and S. transisthmica (holotype worker). Species are in order of mean HW, which is shown in the lower left of the distribution map. Scale bars 0.2 mm. On distribution maps, red dots are sites with UCE sequence data. Red boxes are type locality (not shown for S. tolteca, with type locality 'Guatemala').
Fig. 8 in Integrating UCE Phylogenomics With Traditional Taxonomy Reveals a Trove of New World Syscia Species (Formicidae: Dorylinae)
Fig. 8. Distribution map, face view, lateral view of petiole-AIV, and dorsal view of AIII-AIV of Syscia minuta (holotype worker), S. parva (holotype worker), S. JTL067 (worker, CASENT0644012), S. pollula (holotype worker), S. JTL069 (worker, CASENT0644008), S. JTL068 (queen, CASENT0613276), S. austrella (holotype worker), S. JTL037 (worker, CASENT0635747), S. quisquillis Arizona form (worker, FMNHINS0000095772), and S. boudinoti (holotype worker). Species are in order of mean HW, which is shown in the lower left of the distribution map. Scale bars 0.1 mm for S. minuta to S. JTL037, 0.2 mm for S. quisquillis Arizona form and S. boudinoti. On distribution maps, red dots are sites with UCE sequence data. Red boxes are type locality.
Integrating UCE phylogenomics with traditional taxonomy reveals a trove of New World Syscia species (Formicidae, Dorylinae)
<p>The ant genus <em>Syscia</em> is part of the cryptic ant fauna inhabiting leaf litter and rotten wood in the Asian and American tropics. It is a distinct clade within the Dorylinae, the subfamily from which army ants arose. Prior to this work the genus comprised seven species, each known from a single or very few collections. Extensive collecting in Middle America revealed an unexpected and challenging diversity of morphological forms. Locally distinct forms could be identified at many sites but assignment of specimens to species spanning multiple sites was problematic. To improve species delimitation, Ultra-Conserved Element (UCE) phylogenomic data were sequenced for all forms, both within and among sites, and a phylogeny was inferred. Informed by phylogeny, species delimitation was based on monophyly, absence of within-clade sympatry, and a subjective degree of morphological uniformity. UCE phylogenomic results for 130 specimens were complemented by analysis of mitochondrial COI (DNA barcode) data for an expanded taxon set. The resulting taxonomy augments the number of known species in the New World from 3 to 57. We describe and name 31 new species, and 23 species are assigned morphospecies codes pending improved specimen coverage. Queens may be fully alate or brachypterous, and there is a wide variety of intercaste female forms. Identification based on morphology alone is very difficult due to continuous character variation and high similarity of phylogenetically distant species. An identification aid is provided in the form of a set of distribution maps and standard views, with species ordered by size.</p>
Fig. 5 in Integrating UCE Phylogenomics With Traditional Taxonomy Reveals a Trove of New World Syscia Species (Formicidae: Dorylinae)
Fig. 5. Mesosomal structure of fully alate (A) vs. brachypterous (B) queen.
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