Begonia is the world’s fastest-growing genus and a focus of intense taxonomic research. To support this, stable useful sectional classification needed. This paper reviews feasibility challenges creating an infrageneric for based on phylogenetic data, how to overcome conflict. In particular, it (i) tests genus-wide patterns incongruence between phylogenies nuclear, chloroplast mitochondrial geno...

Wyeomyia exallos, a new mosquito species from Atlantic Forest of southeastern Brazil, is described based on morphological characters of the adult female, male, male genitalia, pupa and fourth-instar larva. The morphological characters of Wy. exallos sp. nov. are compared with those of different subgenera of Wyeomyia as well as of species without subgeneric position. It is proposed that the new ...

Subgeneric groups have been circumscribed in Iris based on a small number of morphological characters. Recent DNA sequence data has indicated that several of the subgenera, sections, and series that have previously been delineated are paraphyletic or polyphyletic. The evolution of characters that have traditionally been used to distinguish sub generic and sectional groups within Iris was invest...

The field of molecular systematics has benefited greatly with the advent of high-throughput sequencing (HTS), making large genomic datasets commonplace. However, a large number of targeted Sanger sequences produced by many studies over the last two decades are publicly available and should not be overlooked. In this study, we elucidate the phylogenetic relationships of the plant genus Burmeiste...

A new species of Ripipteryx Newman (Orthoptera: Tridactyloidea: Ripipterygidae) is described from a fragment of primary Andean forest on the slopes of the extinct Pasochoa volcano in Pichincha Province, northern Ecuador. Ripipteryx pasochoensis sp. nov. is distinguished from congeners by the morphology of the male terminalia, particularly the structure of the subgenital plate. Based on colourat...

The understanding of evolutionary relationships in Arctostaphylos has been hampered by taxonomic difficulties in this large and complex genus. A phylogenetic analysis of sequences from the ITS region for 38 species was used to provide a phylogenetic perspective for interpreting evolutionary patterns and relationships in Arctostaphylos. Phylogenetic relationships were estimated using maximum lik...

The discovery of the first known Ethiopian species of the syrphid genus Myolepta has prompted a review of the subgeneric classification of that genus. Until recently Myolepta was unknown from the Old World tropics and was assumed to be primarily a North Temperate group with a limited distribution in the New World tropics. In 1971 I described the first two Myolepta from the Oriental tropics, the...

The present survey of leaf-blade trichomes Mendoncia used SEM and light microscopy to investigate the diversity trichome types in Neotropical Paleotropical species genus. eglandular are filiform, uniseriate, with asymmetric epidermal cells arranged radially around trichome, these may be short or elongated, oriented two groups. These cells, when covered epicuticular wax, forming smooth thick pla...

Mathis, Wayne N. Studies of Ephydrinae (Diptera: Ephydridae), I I I : Revisions of Some Neotropical Genera and Species. Smithsonian Contributions to Zoology, number 303, 50 pages, 77 figures, 1980.—The systematics phylogeny, classification, and natural history of four genera, three subgenera, and one species of a fourth subgenus of Neotropical Scatellini are revised. Other taxa of Scatellini no...