Osornodella gabrielae, n. gen. and n. sp., a new falklandellid (Amphipoda: Gammaridea) from freshwaters of the Chilean Coastal Range

Zootaxa ◽  
2013 ◽  
Vol 3599 (5) ◽  
pp. 446-456 ◽  
Author(s):  
JORGE PÉREZ-SCHULTHEISS
Keyword(s):  
New Species ◽  
Falkland Islands ◽  
New Taxon ◽  
Secondary Sexual Characters ◽  
Coastal Range ◽  
Secondary Sexual

The first species of falklandellid amphipod outside the Falkland Islands: Osornodella gabrielae n. gen., n. sp. is described from freshwaters of subterranean origin in the Coastal Range of Osorno province, Chile. The new taxon is characterized principally by the absence of secondary sexual characters in pereopods 3–4, uropod 3 aequiramous and telson slightly cleft. The new species is described and illustrated and its morphological relationships with other known species of this group are discussed.

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.

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.

Minjerribah (Diptera: Dolichopodidae), a new genus from coastal Queensland, Australia

Zootaxa ◽  
2019 ◽  
Vol 4686 (4) ◽  
pp. 593-599
Author(s):  
DANIEL J. BICKEL
Keyword(s):  
New Species ◽  
New Genus ◽  
Coastal Habitat ◽  
Diagnostic Characters ◽  
Secondary Sexual Characters ◽  
Secondary Sexual

A monotypic new genus, Minjerribah (Diptera: Dolichopodidae), and an included new species, M. litoura, are described from North Stradbroke Island in southeastern Queensland. The genus is assigned to the subfamily Hydrophorinae based on the pair of distinct converging postvertical setae on the dorsal postcranium, out of line with the postocular setae. Other diagnostic characters in Minjerribah include the highly encapsulated and reduced male postabdomen, the antennal pedicel with a conus (visible both in lateral and median view) projecting into the postpedicel, strong setation on tibia I, and very few male secondary sexual characters. It has only been collected in August from low coastal habitat and is probably a winter flying species. 

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).

Eight new species of Dolichopodinae (Diptera: Dolichopodidae) from northern Iran

Zootaxa ◽  
2017 ◽  
Vol 4242 (1) ◽  
pp. 111 ◽  
Author(s):  
FARZANEH KAZERANI ◽  
SAMAD KHAGHANINIA ◽  
ALI ASGHAR TALEBI ◽  
MAGNUS PERSSON ◽  
MARC POLLET
Keyword(s):  
New Species ◽  
Northern Iran ◽  
European Species ◽  
Secondary Sexual Characters ◽  
East And West ◽  
West Azerbaijan ◽  
Malaise Traps ◽  
Secondary Sexual

Dipterological surveys were conducted in different sites in western and central parts of northern Iran (Guilan, Mazandaran, Kordestan, East and West Azerbaijan and Ardabil provinces) during 2010–2011 using Malaise traps, and during 2012–2014 employing sweep nets. A total of 110 species were collected, including 42 Dolichopodinae. Eleven dolichopodine species proved new to science, eight of which are described here: Dolichopus fuscicercus sp. nov., D. subimmaculatus sp. nov., Gymnopternus flavitibia sp. nov., G. atratus sp. nov., Hercostomus setitibia sp. nov., H. albicoxa sp. nov., Poecilobothrus annulitarsis sp. nov. and P. innotabilis sp. nov. Some of these species strongly resemble European species and even share near identical conspicuous male secondary sexual characters. 

scholarly journals Eleven new species of Amblypsilopus Bigot (Diptera: Dolichopodidae: Sciapodinae) and a key to the species of Madagascar and adjacent islands

2021 ◽  
Vol 755 ◽  
Author(s):  
Igor Ya. Grichanov
Keyword(s):  
New Species ◽  
Indian Ocean ◽  
Western Indian Ocean ◽  
Identification Key ◽  
Secondary Sexual Characters ◽  
Afrotropical Region ◽  
First Time ◽  
Secondary Sexual

Eleven new species of Amblypsilopus Bigot, 1888 from Madagascar are described and illustrated: A. analamazaotra sp. nov., A. andasibensis sp. nov., A. ankarana sp. nov., A. bairae sp. nov., A. fianarantsoa sp. nov., A. freidbergi sp. nov., A. friedmani sp. nov., A. leonidi sp. nov., A. marinae sp. nov., A. olgae sp. nov., and A. romani sp. nov. New species differ from other representatives of the genus in morphology of male surstylus and cercus mainly and male secondary sexual characters on legs. A. flavus (Vanschuytbroeck, 1962) is redescribed. Presently, ca 60 species of Amblypsilopus are known from the Afrotropical region, and 25 species are found on Madagascar. Western Indian Ocean species are associated with the Indo-Pacific A. pallidicornis group, the Pantropical A. abruptus group and the Madagascan A. stuckenbergi group of species. An identification key to males of 28 species of Madagascar and adjacent islands is compiled for the first time.

Nematode-induced demasculinisation of Dolichopus males (Diptera: Dolichopodidae)

Zootaxa ◽  
2008 ◽  
Vol 1689 (1) ◽  
pp. 51 ◽  
Author(s):  
JERE KAHANPÄÄ
Keyword(s):  
New Species ◽  
Male Genitalia ◽  
Abdominal Cavity ◽  
Species Level ◽  
Parasitic Nematodes ◽  
Diagnostic Features ◽  
Secondary Sexual Characters ◽  
Level Identification ◽  
Secondary Sexual

Species-level identification of male dolichopodid flies (Diptera: Dolichopodidae) is based on the structure of genitalia and secondary sexual characters. The effect of parasitic nematodes on the diagnostic features was studied in a sample of over 6000 Dolichopus adults collected mostly from Finland. Large nematodes were found in the abdominal cavity of 45 Dolichopus males. Parasitised males of the small to mid-sized species D. fraterculus Zetterstedt, D. lepidus Staeger, D. longitarsis Stannius and D. picipes Meigen were clearly demasculinised. Secondary sexual characters like a narrowed face, long ciliae on hind femora and modified tarsal segments were weakly developed or absent. Changes in the size, shape and position of male genitalia were also found. Larger species like D. discifer Stannius and D. popularis Wiedemann were less affected by the parasites. Some of the nematode-infected males have been described as new species and they are here synonymised as follows: Dolichopus brachyurus Zetterstedt 1859=D. fraterculus Zetterstedt, 1843; D. consimilis Wahlberg, 1850=D. picipes Meigen, 1824; D. cruralis Wahlberg, 1850=D. lepidus Staeger, 1842; D. kowarzianus Stackelberg, 1928=D. longitarsis Stannius, 1831; D. lapponicus Becker, 1917=D. lepidus Staeger, 1842; D. micropygus Wahlberg, 1850=D. fraterculus Zetterstedt, 1843; D. parvicaudatus Zetterstedt, 1843=D. plumipes (Scopoli, 1763); D. pectinitarsis Stenhammar, 1851=D. plumipes (Scopoli, 1763) syn. nov.

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