Perlesta placida (Hagen), an eastern nearctic species complex (Plecoptera: Perlidae)

1989 ◽  
Vol 20 (3) ◽  
pp. 263-286 ◽  
Author(s):  
Bill P. Stark

AbstractPerlesta placida (Hagen), long regarded as a widespread variable species, is a complex of at least 12 species which differ in pigmentation, egg morphology and male and female genital structures. Species removed from the synonymy of P. placida (= Chloroperla virginica Banks, 1898; = P. virginica immaculata Klapálek, 1921) include P. cinctipes (Banks, 1905), P. decipiens (Walsh, 1862) (= Perla brunnipennis Walsh, 1862, syn. n.; = Isoperla texana Banks, 1914, syn. n.; = P. costalis Klapálek, 1921, syn. n.) and P. nitida Banks, 1948. New species described include P. adena, P. baumanni, P. bolukta, P. browni, P. lagoi, P. nelsoni and P. shubuta. Lectotypes are designated for most older species, including P. frisoni Banks, 1948, which is also valid, and all are redescribed from types.

2013 ◽  
Vol 65 (2) ◽  
pp. 773-780
Author(s):  
S. Curcic ◽  
D. Antic ◽  
T. Radja ◽  
S. Makarov ◽  
B. Curcic ◽  
...  

A new endogean bembidiine ground beetle species, Winklerites serbicus sp. n., from a cave in the southeastern part of Serbia is both described and diagnosed. Male and female genital structures and other taxonomically important characters are illustrated. The new species is clearly distinct from its closest congeners. Fifteen species of the genus so far known are arranged in six groups. The new species is both endemic and relict, inhabiting southeastern Serbia only.


Nematology ◽  
2012 ◽  
Vol 14 (1) ◽  
pp. 109-119 ◽  
Author(s):  
Majid Pedram ◽  
Ebrahim Pourjam ◽  
Robert T. Robbins ◽  
Weimin Ye ◽  
Mohammad Reza Atighi ◽  
...  

Xiphinema mazandaranense n. sp. is described and illustrated. The new species belongs to morphospecies group 6, which is characterised by having two equally developed female genital branches that have spines in the uteri and a short, rounded tail. The new species is characterised by having spines in the tubular portion of the uterus, body 3.7-5.2 mm long, odontostyle 163-173 μm long, odontophore 96-100 μm long, body 62-80 μm diam., rounded tail, four juvenile stages, males rare with three ventromedian supplements next to the adcloacal pair and spicules 85 μm long. The polytomous identification codes of the new species are: A4-B3-C7b-D6-E456-F45-G4-H2-I23-J7b-K2-L1. The new species appears closely related to the members of X. pyrenaicum group which are characterised by a rounded tail with or without an inconspicuous projecting bulge and a uterus devoid of Z-differentiation but showing spiniform structures. The new species differs from members of the X. pyrenaicum group, which includes the recently described X. iranicum, by a more rounded tail without any projection. Beside morphological and morphometric data, molecular analyses of the near-full-length small subunit rDNA gene (SSU) placed the new species in close relationship with some species belonging to Xiphinema morphospecies group 6 and further separated this species from the X. pyrenaicum complex.


Zootaxa ◽  
2018 ◽  
Vol 4402 (2) ◽  
pp. 339 ◽  
Author(s):  
ANTON V. VOLYNKIN ◽  
KAREL ČERNÝ

The Barsine zebrina species-complex is revised. Three new species, Barsine subzebrina Volynkin & Černý, sp. nov. (Nepal, NE India, N Myanmar), Barsine bucseki Volynkin & Černý, sp. nov. (Malay Peninsula) and Barsine navneetsinghi Volynkin & Černý, sp. nov. (NE India and N Myanmar) are described. A new combination is established: Barsine zebrina (Moore, 1878), comb. nov. Adult, male and female genitalia are illustrated. 


Zootaxa ◽  
2021 ◽  
Vol 4948 (2) ◽  
pp. 151-183
Author(s):  
DANIEL CHIRIVI JOYA

Mexico is the country with the largest diversity of the genus Phrynus (Amblypygi: Phrynidae); however, many species could remain hidden due to the conservative morphology of the group. Two of the Mexican species, P. operculatus, and P. jalisco show enough variation, between populations from different localities, to be considered as possible species complexes. The scarce taxonomic information of these species and the few analyses of their variation could cause misidentifications and sub estimation of the diversity. Specimens morphologically similar to P. operculatus from different Mexican localities were analyzed, using characters from the male and female genitals. Four new species are described, presenting illustrations of SEM for the male genitals. Details of the morphologic variation in this group of species are discussed, as well as the usefulness of sexual characters like the size proportions, and sclerotization in the female gonopods, and ornaments in males, to improve the diagnoses of the Mexican Phrynus. The known distribution of P. operculatus is large in comparison with those of the other species, after the result of this research, the possibility that it is a larger species complex is evident, thus, it is necessary to increase the morphologic and genetic population studies in this group. 


Crustaceana ◽  
2015 ◽  
Vol 88 (3) ◽  
pp. 324-342 ◽  
Author(s):  
E. Suárez-Morales ◽  
R. J. Wasserman ◽  
T. Dalu

Recent collections from the Eastern Cape Province of South Africa yielded an undescribed species of the freshwater diaptomid copepod genus Lovenula. It is probably the largest paradiaptomine known and closely resembles L. falcifera (Lovén, 1845). This species, L. raynerae n. sp., differs in several characters, including the shape of the female genital operculum, but particularly in details of the male and female leg 5: on the female the size of the endopod, a distinctive protuberance on the first exopodal segment; on male leg 5, the features of the seta adjacent to the claw of the right leg, a subdistal endopodal spine of the same ramus and details of the claw, with a middle gap on the inner margin. As with L. falcifera, the new species was collected from an ephemeral habitat. A record of L. falcifera from Ethiopia probably represents an undescribed species. A key to the species of the genus is provided.


1985 ◽  
Vol 16 (4) ◽  
pp. 399-413 ◽  
Author(s):  
P.G. Mason

AbstractFour new nearctic species belonging to the Cryptochironomus fulvus species complex are discussed. The male imago, pupa and larva of C. curryi; the male and female imagines, pupae and larvae of C. conus, C. eminentia, and C. ramus are described and important taxonomic features figured. Preliminary keys to male imagines and pupae of the known nearctic species in the complex are given.


Lankesteriana ◽  
2017 ◽  
Vol 17 (2) ◽  
Author(s):  
Mark Wilson ◽  
Katharine Dupree ◽  
Wiel Driessen ◽  
Bruno T. Larsen ◽  
Armin Löckher ◽  
...  

In this paper we summarize the taxonomic history of Pleurothallis crocodiliceps Rchb.f. and demonstrate that the species described by Reichenbach did not possess the stereotypical minute, pubescent, tri-lobed lip, with basal lobes modified into “horns”. The first two species described with such a lip were P. arietina and P. nelsonii. Rather than a single widely distributed, variable species, with a morphologically constant lip, P. crocodiliceps, we recognize the P. arietina-P. nelsonii species complex. Herein we describe four new species in this complex and discuss the morphological characters useful in distinguishing among the members of the complex. We also discuss the nature of the lip possessed by members of this complex and propose that it may mimic a female insect luring a male fly into pollinating the flower by pseudocopulation.


Zootaxa ◽  
2017 ◽  
Vol 4281 (1) ◽  
pp. 135 ◽  
Author(s):  
ÂNGELO PARISE PINTO ◽  
GABRIEL MEJDALANI ◽  
DANIELA MAEDA TAKIYA

The taxonomy of the Proconiini genus Diestostemma Amyot & Serville is revisited and the D. bituberculatum species complex is proposed to include D. bituberculatum (Signoret), D. rubriventris (Schmidt), and four new species. A revision of this species complex includes a new geographical record for D. rubriventris and description and illustration of three Ecuadorian and one Brazilian new species based on males and females: D. albinoi sp. nov. (Ecuador: Orellana Province), D. cavichiolii sp. nov. (Brazil: Mato Grosso State), D. gervasioi sp. nov. (Ecuador: Orellana Province), and D. olivia sp. nov. (Ecuador: Orellana Province). These species, all named as homages to the treehopper specialist Dr. Albino Morimasa Sakakibara and his former students, are very similar to D. bituberculatum in general appearance, differing mainly by the shape of the male and female terminalia, but also by slight aspects of the external morphology. The status of the name-bearing specimen of D. rubriventris is modified from lectotype to holotype. The study shows that the species diversity of Diestostemma is far from being entirely known. However, several old available names should be evaluated in a full revision context before description of other new species. 


Mycologia ◽  
2011 ◽  
Vol 103 (4) ◽  
pp. 841-853 ◽  
Author(s):  
Gábor M. Kovács ◽  
Tímea K. Balázs ◽  
Francisco D. Calonge ◽  
María P. Martín

Zootaxa ◽  
2020 ◽  
Vol 4881 (1) ◽  
pp. 196-200
Author(s):  
RUKİYE TANYERİ ◽  
ÜNAL ZEYBEKOĞLU

Tshurtshurnella sinopei sp. nov. is described after the specimens collected in Sinop, Western Black Sea Region of Turkey, in August 2017. External morphology including male and female genital structures of the new species are described and illustrated.


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