A new species of Characidium Reinhardt (Characiformes: Crenuchidae) from the Río Huallaga, central Peruvian Amazon, with a review of secondary sexual characters in the genus

2020 ◽  
Author(s):  
Tulio F. Teixeira ◽  
Marcelo R. S. Melo
Keyword(s):  
New Species ◽  
Peruvian Amazon ◽  
Secondary Sexual Characters ◽  
A New Species ◽  
Secondary Sexual

scholarly journals A new species of Sybistroma Meigen, 1824 (Diptera: Dolichopodidae) from China

2020 ◽  
Vol 418 ◽  
pp. 1-8
Author(s):  
I. Ya. Grichanov ◽  
Keyword(s):  
New Species ◽  
Yunnan Province ◽  
Hind Femur ◽  
Secondary Sexual Characters ◽  
A New Species ◽  
Secondary Sexual

A new species Sybistroma genriki sp. n. from the Yunnan province of China is described. It belongs to S. incisa group of species, differing from other species in mostly yellow antenna with arista-like stylus much longer than postpedicel; postpedicel elongated, much longer than wide, acute apically; stylus apical, with dark and white apical swelling; lower postocular setae white; legs mostly yellow except mostly black mid and hind coxae and brown-black distal spot on hind femur. A key to 11 species from Sichuan and Yunnan is provided, based mainly on male secondary sexual characters. The known distribution of the dolichopodine genus Sybistroma Meigen, 1824, is briefly discussed.

NOTES ON THE SEXUAL CHARACTERS OF SAPRINUS (HISTERIDAE, COLEOP.) WITH THE DESCRIPTION OF A NEW SPECIES

1935 ◽  
Vol 67 (9) ◽  
pp. 189-190
Author(s):  
Rupert L. Wenzel
Keyword(s):  
New Species ◽  
Undescribed Species ◽  
Secondary Sexual Characters ◽  
A New Species ◽  
Secondary Sexual

In the course of an investigation of the secondary sexual characters of Saprinus assimilis Payk, the writer found five specimens of an hitherto undescribed species of Saprinus. At the request of Mr. Henry Dybas, who submitted the material for determination and study, the description of the species is included with the following notes.

A New Species of Dolichopus from North Carolina (Diptera: Dolichopodidae)

1962 ◽  
Vol 94 (5) ◽  
pp. 502-505 ◽  
Author(s):  
J. R. Vockeroth
Keyword(s):  
North Carolina ◽  
New Species ◽  
Lateral Surface ◽  
Wing Length ◽  
Metallic Copper ◽  
Normal Length ◽  
The Third ◽  
Secondary Sexual Characters ◽  
A New Species ◽  
Secondary Sexual

The species described below is closely related to Dolichopus dorycerus Loew, 1864, but differs in both sexes in the colour of the lower orbital cilia and, in the male, in many details of the secondary sexual characters.Dolichopus phyllocerus, new speciesMale.–Length 6.3 mm.; wing length 6.2 mm. Face long, narrow, slightly broadened above, pale golden-brown, silvery below. Front metallic copper or coppery-green. Antenna (Fig. 1b) with first two segments yellow, the third black with about basal third yelllow; first segment of normal length; second very short, especially on lateral surface where it is scarcely visible; third short, broad, blunt. Arista black, about 21/2 times as long as rest of antenna, very slender, with a broad, blunt apical lamella. Lateral and lower orbital cilia yellow, upper cilia black.

A new species of Ungla (Neuroptera: Chrysopidae) that exhibits remarkable homoplasy in male secondary sexual characters

Zootaxa ◽  
2019 ◽  
Vol 4700 (1) ◽  
pp. 87-101
Author(s):  
CATHERINE A. TAUBER
Keyword(s):  
New Species ◽  
Sexually Dimorphic ◽  
Generic Level ◽  
Secondary Sexual Characters ◽  
Green Lacewings ◽  
A New Species ◽  
Secondary Sexual

A new and very unusual species of green lacewings, Ungla pseudomeleoma sp. nov. is described from Peru. Males of this species exhibit a remarkable example of generic-level homoplasy with Meleoma. Its abdominal and genitalic features are completely consistent with the genus Ungla. However, its external sexually dimorphic features resemble those of both Ungla and Meleoma. Females of the new species also express cranial modifications that resemble those of some female Meleoma species. 

A new species of Hoplosaenidea Laboissiere, 1933 from Malaysia (Coleoptera: Chrysomelidae: Galerucinae)

Zootaxa ◽  
2009 ◽  
Vol 2300 (1) ◽  
pp. 47-50
Author(s):  
MOHAMED S. MOHAMEDSAID
Keyword(s):  
New Species ◽  
Secondary Sexual Characters ◽  
Chrysomelid Beetles ◽  
A New Species ◽  
Secondary Sexual

Recently, the author described two species of the genus Hoplosaenidea Laboissiere, 1933 (Coleoptera: Chrysomelidae: Galerucinae) where the male having a peculiar secondary sexual characters: clypeus excavated, furnished with projections, and the antennal first segment large, broadened, excavated and spined at apex. The two species are H. takizawai Mohamedsaid, 2001 (Fig. 5) and H. singaporensis Mohamedsaid, 2002 (Fig. 6) described from Bali and Singapore, respectively. The presence of secondary sexual characters in males is most prevalent in the chrysomelid beetles of the subfamily Galerucinae (Mohamedsaid 2004b).

Cis pickeri sp. nov. (Coleoptera: Ciidae) from Southern Africa

Zootaxa ◽  
2009 ◽  
Vol 2117 (1) ◽  
pp. 56-64 ◽  
Author(s):  
CRISTIANO LOPES-ANDRADE ◽  
NATALIA MATUSHKINA ◽  
GERDA BUDER ◽  
KLAUS-DIETER KLASS
Keyword(s):  
South Africa ◽  
New Species ◽  
Southern Africa ◽  
Male Genitalia ◽  
Morphological Characters ◽  
Species Group ◽  
External Morphology ◽  
Secondary Sexual Characters ◽  
A New Species ◽  
Secondary Sexual

A new species of ciid beetle from southwestern South Africa is described. Images of the habitus, male genitalia and other characters of the external morphology are provided. The observed variations of male secondary sexual characters are briefly discussed. The similarities of external morphological characters of Cis pickeri sp. nov. to other species of Cis Latreille are discussed, and the new species is tentatively included in the bilamellatus species group.

Review of the spoon tarsus subgroup of Hawaiian Drosophila (Drosophilidae: Diptera), with a description of one new species

Zootaxa ◽  
2009 ◽  
Vol 2003 (1) ◽  
pp. 53-68 ◽  
Author(s):  
RICHARD T. LAPOINT ◽  
KARL N. MAGNACCA ◽  
PATRICK M. O’GRADY
Keyword(s):  
New Species ◽  
Junior Synonym ◽  
Species Boundaries ◽  
Key To Species ◽  
Hawaiian Drosophila ◽  
Secondary Sexual Characters ◽  
One New Species ◽  
A New Species ◽  
Secondary Sexual

The spoon tarsus species subgroup is revised and this clade is placed in the modified tarsus group of Hawaiian Drosophila. The species boundaries in this group are discussed in light of diagnostic secondary sexual characters of males. Drosophila septuosa Hardy is regarded as a junior synonym of Drosophila percnosoma Hardy. A new species, Drosophila kikalaeleele Lapoint, Magnacca & O’Grady is described. Drosophila fastigata Hardy, a species endemic to O‘ahu, is added to the species subgroup, bringing the total number of known species to 12. An updated key to species is provided to the spoon tarsus subgroup.

A New Species of thePristimantis conspicillatusGroup from the Peruvian Amazon (Anura: Craugastoridae)

2016 ◽  
Vol 83 (3) ◽  
pp. 207-218 ◽  
Author(s):  
José M. Padial ◽  
Giussepe Gagliardi-Urrutia ◽  
Juan C. Chaparro ◽  
Roberto C. Gutiérrez
Keyword(s):  
New Species ◽  
Peruvian Amazon ◽  
A New Species

Evaluation of the evolution of jaw morphology in New World hirudiniform leeches, with a description of a new blood-feeding species of Oxyptychus (Annelida:Hirudiniformes) from the Peruvian Amazon

2012 ◽  
Vol 26 (1) ◽  
pp. 17 ◽  
Author(s):  
Alejandro Oceguera-Figueroa ◽  
Amalie K. Barrio ◽  
Maria I. Aldea-Guevara ◽  
Mark E. Siddall
Keyword(s):  
New Species ◽  
Phylogenetic Relationships ◽  
New World ◽  
Null Distribution ◽  
Blood Feeding ◽  
Morphological Characters ◽  
Phylogeny Reconstruction ◽  
Peruvian Amazon ◽  
Reproductive Anatomy ◽  
A New Species

Morphological characters of well-established taxonomic utility are infrequently examined for their relative phylogenetic consistency. Second only to characters of reproductive anatomy, jaw morphology and dentition commonly are employed as diagnostic characters for hirudiniform leeches, yet these features are highly variable across the group. Patterns of change were investigated for number of jaws and number of denticles per jaw in a phylogenetic context across 17 hirudiniform leeches representing three families. Phylogeny reconstruction employed 16 morphological characters, as well as two nuclear and two mitochondrial loci, and was evaluated with parsimony and likelihood. Rather than constrain the ancestral number of denticles to extant states, this meristic was optimised with squared-change parsimony. The degree to which dentition patterns were explained by phylogenetic relationships was assessed against a null distribution defined by permutation of extant states across terminals. Dentition was found to be non-randomly explained by phylogeny and, thus, corroborative of relationships among hirudiniform leeches as well as of the uniqueness of a new species of Oxyptychus described here from the Peruvian Amazon.

Evolutionary gain of male secondary sexual structures in the widespread Neotropical montane genus Lathecla (Lepidoptera, Lycaenidae, Eumaeini)

2015 ◽  
Vol 46 (1) ◽  
pp. 47-78 ◽  
Author(s):  
Robert K. Robbins ◽  
Robert C. Busby
Keyword(s):  
New Species ◽  
Phylogenetic Tree ◽  
Dorsal Surface ◽  
Ventral Surface ◽  
Wing Pattern ◽  
Sexual Organ ◽  
Species Diversification ◽  
Secondary Sexual Characters ◽  
Adult Wing ◽  
Secondary Sexual

Lathecla is a widespread, primarily montane, Neotropical genus. It consists of seven species that have a relatively uniform adult wing pattern coupled with a diverse set of male secondary sexual structures. Taxonomically, we describe five species — Lathecla mitzi Robbins new species, Lathecla fernandezi Robbins & Busby new species, Lathecla vichai Robbins & Busby new species, Lathecla carolyna Busby new species and Lathecla winnie Robbins & Busby new species and remove one name from synonymy — Thecla mimula Draudt, revised status. Evidence is presented for transferring Lathecla from the Thestius Section of the Eumaeini to the Micandra section, next to Podanotum. Topology of an inferred phylogenetic tree for Lathecla is stable when male secondary sexual characters are omitted or under a variety of implied weighting options. A scent patch on the cubital vein of the dorsal surface of the forewing is unique to Lathecla and evolved (and was not lost) in the ancestor of a four-species lineage. Its sister lineage contains two species. A scent patch on the ventral surface of the forewing evolved (and was not lost) in the ancestor of a six-species lineage in Lathecla. Its sister lineage contains one species. These results, along with previous data, show the viability for the Eumaeini of the hypothesis that the evolutionary gain of a male secondary sexual organ increases the rate of species diversification.

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