A revision of Hierochloe sect. Monoecia (Anthoxanthinae, Pooideae, Poaceae)

Phytotaxa ◽  
2021 ◽  
Vol 478 (1) ◽  
pp. 92-104
Author(s):  
IRENE LEMA-SUÁREZ ◽  
ELVIRA SAHUQUILLO ◽  
MANUEL PIMENTEL

We propose a new taxonomic arrangement for the South American species of Hierochloe sect. Monoecia, based on a recently published study combining morphological, molecular and cytological data. Only four out of the eight commonly accepted species of this section (H. pusilla, H. juncifolia, H. quebrada and H. redolens pro parte) are recognised using both phylogenetic (apomorphic) and phenetic species concepts. The four remaining species (H. altissima, H. gunckelii, H. spicata and H. utriculata) are reduced to varieties of the widespread H. redolens due to weak molecular, macro- and micromorphological differentiation. These varieties are presented here as new taxonomical combinations: H. redolens var. gunckelii, H. redolens var. spicata, H. redolens var. utriculata and H. redolens var. altissima. Lectotypes are designated for the names H. pusilla, H. juncifolia, H. redolens var. utriculata, and H. redolens var. altissima.

2020 ◽  
Vol 105 (2) ◽  
pp. 183-194
Author(s):  
Fernando O. Zuloaga ◽  
Sandra S. Aliscioni ◽  
M. Amalia Scataglini

Generic boundaries of the South American species Panicum longipedicellatum Swallen are explored and compared with allied genera of the tribe Paniceae. On the basis of morphological, anatomical, and molecular characters a new genus, Cnidochloa Zuloaga, is proposed. The phylogenetic position of the new genus within the Paniceae is evaluated.


Zootaxa ◽  
2021 ◽  
Vol 5071 (4) ◽  
pp. 451-491
Author(s):  
ANDREY I. KHALAIM ◽  
ENRIQUE RUÍZ-CANCINO

Mexican species of three pimpline genera, Apechthis Förster (one  species), Itoplectis Förster (six species) and Pimpla Fabricius (20 species, including one unidentified taxon), are reviewed. Four species of Pimpla are described as new to science: P. chamela sp. nov., P. oaxacana sp. nov., P. tequila sp. nov. and P. xalapana sp. nov. Pimpla thoracica Morley, 1914 is found to be a junior synonym of P. ellopiae Harrington, 1892 (syn. nov.). Apechthis zapoteca (Cresson) is recorded for the first time from Venezuela, Pimpla dimidiata (Townes) from Mexico, P. caeruleata Cresson, P. croceiventris (Cresson), P. sanguinipes Cresson and P. sumichrasti Cresson from Honduras, P. ichneumoniformis Cresson and P. viridescens Morley from Guatemala and Honduras, and P. punicipes Cresson from Panama. The South American species Pimpla caerulea Brullé and the Nearctic species P. pedalis Cresson are excluded from the Mexican fauna. Male of Itoplectis mexicana and female of Pimpla dimidiata are recorded for the first time. Identification keys to the species of Itoplectis and Pimpla occurring in Mexico are provided.  


Zootaxa ◽  
2021 ◽  
Vol 4953 (1) ◽  
pp. 1-111
Author(s):  
JESÚS GÓMEZ-ZURITA

In this work, the Chrysomelinae leaf beetle subgenus Calligrapha s. str. Chevrolat, 1836 is revised, offering redescriptions and keys for identification of twelve species currently considered in this group, allied to the South American species Calligrapha polyspila (Germar, 1821), the generic type of Calligrapha. The current species count results from important taxonomic changes. These include reversing a long-held synonymy, resurrecting the name Calligrapha mexicana Stål, 1859 stat. rev. for a species that is different from Chrysomela serpentina Rogers, 1856; upgrading the status of Polyspila serpentina var. discrepans Achard, 1923 to Calligrapha discrepans (Achard) stat. rev.; and formally proposing a number of new synonymies for several species, including: (1) Calligrapha discrepans (Achard) (= Calligrapha serpentina ssp. temaxensis Bechyné, 1952 syn. nov.); (2) Calligrapha fulvipes (Gistel, 1848) (= Calligrapha bajula Stål, 1860 syn. nov.; = Calligrapha nupta Stål, 1859 syn. nov.; = C. sponsa Stål, 1859 syn. nov.); and (3) Calligrapha polyspila (Germar) (= Polyspila polyspila var. bilineolata Achard, 1923 syn. nov.; = Polyspila polyspila var. plagata Achard, 1923 syn. nov.). 


Zootaxa ◽  
2020 ◽  
Vol 4751 (1) ◽  
pp. 75-104
Author(s):  
MAURICIO M. ROCHA ◽  
ELIANA M. CANCELLO

In this contribution we present updates on the taxonomy and morphology of the South American species of Amitermes. Two new species are described: Amitermes bandeirai, sp. n., from Brazil, and Amitermes lilloi, sp. n., from Argentina. Amitermes nordestinus is a junior synonym of Amitermes aporema. The imago of A. aporema is described for the first time. Detailed comparative gut anatomy of the eight species is presented for the first time. The geographic distribution of Amitermes in South America is expanded and the distribution patterns of some species are discussed. 


1998 ◽  
Vol 27 ◽  
Author(s):  
Danúncia Urban

São estudadas as espécies de Svastra Holmberg, da América do Sul: é descrita Svastra maculata sp. n., da Argentina; Svastra bombilans Holmberg, 1884 é considerada sinônimo únior de Svastra flavitarsis (Spinola, 1851); Svastra detecta Holmberg, 1884, permanece como boa espécie. ABSTRACT The South American species of the Neotropical genus Svastra are studied. Svastra maculata sp.n. from Argentina is described; Svastra bombilans (Holmberg, 1884 is considered junior synonym of Svastra latitarsis (Spinola, 1851) and Svastra detecta Holmberg, 1884 remains as a good species. RÉSUMÉ Les espêces du genre Svastra du Chile et de l'Argentina sont étudiés. Svastra maculata sp. n. est décrit. Svastra bombilans Holmberg, 1884. est considéré comme synonyme jeune de Svastra flavitarsis (Spinola, 185 1) et Svastra detecta Holmberg, 1884, une bonne espéce.


1993 ◽  
Vol 96 (1) ◽  
pp. 178
Author(s):  
John J. Engel ◽  
D. J. Galloway

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