skip to main content
US FlagAn official website of the United States government
dot gov icon
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
https lock icon
Secure .gov websites use HTTPS
A lock ( lock ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.


This content will become publicly available on February 19, 2026

Title: No end to endemism – contributions to the difficult Nasa Weigend Series Alatae (Loasaceae). A new species from Peru and the rehabilitation of “ Loasa” calycina Benth.
A new species of Nasa ser. Alatae (Urban & Gilg) Weigend from Northern Peru is described and illustrated.Nasa katjaesp. nov.was at first encountered by an observation on iNaturalist and subsequently collected in the humid Andean forests near Colasay in the province of Jaén (Cajamarca, Peru). Whilst comparing the new species with closely relatedNasa loxensis(Kunth) Weigend, a taxon widespread in Southern Ecuador (and tentatively adjacent Peru), a reevaluation of the status of earlier synonymizedLoasa calycinaBenth. became necessary. Consequently,Nasa calycinacomb. nov.is rehabilitated at species level andNasa loxensisis redefined.  more » « less
Award ID(s):
2019425
PAR ID:
10631638
Author(s) / Creator(s):
; ; ; ; ;
Publisher / Repository:
PhytoKeys
Date Published:
Journal Name:
PhytoKeys
Volume:
252
ISSN:
1314-2011
Page Range / eLocation ID:
163 to 186
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
More Like this
  1. The genus-level taxonomy of the ant subfamily Leptanillinae (Hymenoptera: Formicidae) is here revised, with the aim of delimiting genus-level taxa that are reciprocally monophyletic and readily diagnosable based upon all adult forms. This new classification reflects molecular phylogenetics and is informed by joint consideration of both male and worker morphology. Three valid genera are recognized in the Leptanillinae:Opamyrma,Leptanilla(=Scyphodonsyn. nov.,Phaulomyrma,Leptomesites,Noonillasyn. nov.,Yavnellasyn. nov.), andProtanilla(=Anomalomyrmasyn. nov.,Furcotanilla).LeptanillaandProtanillaare further divided into informal, monophyletic species groups. Synoptic diagnoses are provided for all genera and informal supraspecific groupings. In addition, worker-based keys to all described species within the Leptanillinae for which the worker caste is known are provided; and male-based keys to all species for which males are known, plus undescribed male morphospecies for which molecular data are published. The following species are described as new:Protanilla wallaceisp. nov.,Leptanilla acherontiasp. nov.,Leptanilla belantansp. nov.,Leptanilla bethyloidessp. nov., andLeptanilla najaphallasp. nov. 
    more » « less
  2. In this study, a morphological revision was conducted ofAgroecotettixBruner, a group of grasshoppers inhabiting open xeric desert scrub, shrublands, and plains, spanning central Texas to central Mexico. The genus was originally described by Bruner in 1908, with two taxa added by Hebard in 1922.Agroecotettixhas remained unrevised despite numerous collections. This exploration, spurred by a novel discovery of significant male genitalia variation inAgroecotettix aristus aristus, suggests undescribed species. Through morphological specimen comparisons, sixteen new species are described from biologically rich regions of the South Texas Plains, Chihuahuan Desert, and Sierra Madre Oriental. The new taxa described here areA. silverheelsisp. nov.,A. xiphophorussp. nov.,A. glochinossp. nov.,A. texmexsp. nov.,A. cumbressp. nov.,A. burtonisp. nov.,A. mooreisp. nov.,A. chiantiensissp. nov.,A. dornisp. nov.,A. chisosensissp. nov.,A. turnerisp. nov.,A. quitmanensissp. nov.,A. vaquerosp. nov.,A. forcipatussp. nov.,A. idicsp. nov., andA. kahloaesp. nov.This discovery sheds light on desert biodiversity and hints at a Pleistocene radiation akin to other melanoplines, urging further exploration to enrich our understanding of this fascinating lineage and unravel the biogeographic history within these arid landscapes. 
    more » « less
  3. Species of the genusLathrobiumGravenhorst (Coleoptera: Staphylinidae: Paederinae) from North America north of Mexico are reviewed and 41 species are recognized. Morphology and mitochondrial COI sequence data were used to guide species designations in three flightless lineages endemic to the southern Appalachian Mountains, a biologically diverse region known for cryptic diversity. Using a combination of phylogeny, algorithm-based species delimitation analyses, and genitalic morphology, five new cryptic species are described and possible biogeographic scenarios for their speciation hypothesized:L. balsamenseHaberski & Caterino,sp. nov.,L. camplyacraHaberski & Caterino,sp. nov.,L. islaeHaberski & Caterino,sp. nov.,L. lividumHaberski & Caterino,sp. nov.,L. smokienseHaberski & Caterino,sp. nov.Five additional species are described:L. absconditumHaberski & Caterino,sp. nov.,L. hardeniHaberski & Caterino,sp. nov.,L. lapidumHaberski & Caterino,sp. nov.,L. solumHaberski & Caterino,sp. nov., andL. thompsonorumHaberski & Caterino,sp. nov.Two species are transferred fromLathrobiumtoPseudolathraCasey:Pseudolathra parcum(LeConte, 1880),comb. nov.andPseudolathra texana(Casey, 1905),comb. nov.Twenty-six names are reduced to synonymy. Lectotypes are designated for 47 species. Larvae are described where known, and characters of possible diagnostic value are summarized. Species diagnoses, distributions, illustrations of male and female genitalia, and a key toLathrobiumspecies known from the Nearctic region (including several introduced species) are provided. 
    more » « less
  4. This revision is based on sampling efforts over the past three decades in the southern Appalachian Mountains which have providedNesticus(Araneae, Nesticidae) collections of approximately 2100 adult specimens from more than 475 unique collecting events. Using a “morphology first” framework we examined recently collected specimens plus museum material to formulate morphology-based species hypotheses for putative new taxa (discovery phase). Using sequence capture of nuclear ultraconserved elements (UCEs) we analyzed 801 nuclear loci to validate new (and prior) morphology-based species hypotheses (validation phase) and reconstructed a robust backbone phylogeny including all described and new species. Sanger sequencing and UCE-bycatch were also used to gather mitochondrial data for more than 240 specimens. Based on our integrative taxonomic framework ten newNesticusspecies are herein described, includingN. binfordaesp. nov.,N. bondisp. nov.,N. caneisp. nov.,N. cherokeensissp. nov.,N. dellingerisp. nov.,N. dykemanaesp. nov.,N. jemisinaesp. nov.,N. lowderisp. nov.,N. roanensissp. nov., andN. templetonisp. nov.Previously unknown males are also described forN. bishopiGertsch, 1984,N. crosbyiGertsch, 1984, andN. silvanusGertsch, 1984, as well as the previously unknown female forN. mimusGertsch, 1984. Based on combined evidenceN. cooperiGertsch, 1984 is placed in synonymy withN. reclususGertsch, 1984. Overall, the montane radiation of AppalachianNesticusreveals a general lack of species sympatry and compelling biogeographic patterns. Several regionalNesticustaxa are rare, microendemic habitat specialists that deserve conservation attention and detailed future monitoring as conservation sentinels. 
    more » « less
  5. We describe five new Neotropical species ofRipersiellaliving in association withAcropygaants:R. campensissp. nov.,R. illicianssp. nov.,R. montanaesp. nov.,R. pediandensissp. nov., andR. telaliasp. nov.We also redescribeR. andensisandR. colombiensisbased on type specimens and other collections. Together, these seven species form a morphologically similar group that we informally refer to as theandensis-complex ofRipersiella. All members of theandensis-complex are confirmed or are speculated to be mutualists ofAcropygaants. We discuss the implications of these associations and provide an identification key to the Neotropical species ofRipersiellathat are lacking bitubular cerores, including the new species. 
    more » « less