Stibarokris mariasi sp. nov. – a new quill mite species (Acariformes: Syringophilidae) parasitizing Puffinus pacificus (Gmelin) (Procellariidae) on Johnston Atoll

2015 ◽  
Vol 60 (4) ◽  
Author(s):  
Eliza Glowska

AbstractA new quill mite species Stibarokris mariasi sp. nov. (Acariformes: Syringophilidae) is described from the Wedge-tailed Shearwater Puffinus pacificus (Gmelin) (Procellariiformes: Procellariidae) from Johnston Atoll. Females of S. mariasi sp. nov. differ from most similar species S. phoeniconaias Skoracki and OConnor, 2010 by the longitudinal branch of the peritremes consisting of 11-14 chambers (vs 15-17 chambers in S. phoeniconaias), the movable cheliceral digit 145 long (vs 170), setal bases c1 situated distinctly anterior to the level of setae se (vs setal bases c1 and se situated at the same transverse level), the propodonotal shield punctate on the whole surface (vs propodonotal shield punctate at the lateral margins), the small, balloonlike hysteronotal shield, bearing bases of setae d1 and densely punctate on the whole surface (vs hysteronotal shield bearing setal bases d1 and e2 and punctate at the anterior part), the pseudanal setae ps1 1.8 times longer than setae ps2 (vs setae ps1 and ps2 subequal in length), subequal lengths of setae h1 and f1 (vs setae h1 twice longer than f1) and the lengths of setae ag1, ag2, and ag3 145-170, 105-125, 120-165, respectively (vs ag1, ag2 and ag3 245-285, 245-270, 330-340, respectively). A key to all known species of the genus Stibarokris Kethley, 1970 is proposed.

2019 ◽  
Vol 24 (10) ◽  
pp. 1851-1867
Author(s):  
Ioana Cristina Constantinescu ◽  
Gabriel Bogdan Chișamera ◽  
Daniel R. Gustafsson ◽  
Fasheng Zou ◽  
Xingzhi Chu ◽  
...  

Two new pteronyssid feather mite species are described from passeriform birds in China: Pteroherpus pomatorhinae sp. nov. from the Streak-breasted Scimitar-babbler Pomatorhinus ruficollis Hodgson (Passeriformes, Timaliidae), and Pteroherpus chinensis sp. nov. from the Collared Finchbill Spizixos semitorques Swinhoe (Passeriformes, Pycnonotidae). Pteroherpus pomatorhinae sp. nov. belongs to the diploplax species group. The males of Pteroherpus pomatorhinae sp. nov. have the prodorsal shield elongated, the opisthosoma narrowed to posterior end, the opisthosomal lobes slightly elongated, and two pairs of small additional sclerites (one dorsally, between prodorsal and hysteronotal shield, and one ventrally posterior to genital apparatus). The females of Pteroherpus pomatorhinae sp. nov. have a pair of anterior hysteronotal sclerites, a central sclerite, a pair of lateral opisthosomal sclerites partially split into lateral and inner fragments and a pair of pygidial sclerites. The central sclerite has almost parallel lateral margins and concave posterior margin, and the posterior ends of the fragments of opisthosomal shields are connected by a thick bridge. Pteroherpus chinensis sp. nov. belongs to the hoplophorus species group. The males of Pteroherpus chinensis sp. nov. have prodorsal shield slightly longer than wide, the opisthosoma moderately narrowed to posterior end, the opisthosomal lobes wide and short and the adanal shield with irregular form. The females of Pteroherpus chinensis sp. nov. have the anterior hysteronotal sclerite fused with the prodorsal shield into a complex shield, a central sclerite, a pair of lateral opisthosomal sclerites and a pair of pygidial sclerites. The central sclerite is well delimited, and shaped as a longitudinal plate, slightly narrower posteriorly, with slightly convex anterior margin, concave lateral margins, and strongly convex posterior end.


Zootaxa ◽  
2012 ◽  
Vol 3481 (1) ◽  
pp. 27 ◽  
Author(s):  
SERGEY G. ERMILOV ◽  
STANISLAV KALÚZ

Four new oribatid mite species of the superfamily Galumnoidea, Pergalumna paradecoratissima sp. nov., Pergalumnaparalongisetosa sp. nov., Pergalumna ecuadorensis sp. nov. and Galumnopsis lanceosensilla sp. nov., are described fromEcuador. The genus Galumnopsis is recorded for the first time for the Ecuador. Pergalumna paradecoratissima sp. nov.is very similar in having the combination of foveolate prodorsum, striate notogaster, setiform sensilli, interlamellar setaeshorter than lamellar and rostral setae, absence of anterior notogastral margin and three pairs of notogastral porose areas,to Pergalumna decoratissima Pérez-Íñigo & Baggio, 1986 from Brazil, however it differs from the latter by morphologyof rostrum, body size, surface of anal plates and length of epimeral setae. Pergalumna paralongisetosa sp. nov. is verysimilar in having the combination of setiform sensilli, long prodorsal setae, absence of anterior notogastral margin, threepairs of notogastral porose areas and long adanal setae ad 1 and ad 2 to Pergalumna longisetosa Balogh, 1960 from CentralAfrica, however it differs from the latter by body size, lengths of sensilli and interlamellar setae, absence of medial pore,length of epimeral setae. Pergalumna ecuadorensis sp. nov. can be distinguished from all similar species by having theround rostrum, setiform sensilli, long and setiform prodorsal setae, absence of anterior notogastral margin, smooth bodysurface and three pairs of oval notogastral porose areas, and by the very long interlamellar setae. Galumnopsis lanceosen-silla sp. nov. can be distinguished from all similar species (with smooth body surface) by the morphology of sensilli which are lanceolate, with tooth in distal part.


Acarina ◽  
2019 ◽  
Vol 27 (2) ◽  
pp. 151-164
Author(s):  
Sergey V. Mironov

Two new species of the feather mite genus Proctophyllodes (Proctophyllodidae: Proctophyllodinae) are described from passerines in the Primorye Territory, Russia: Proctophyllodes bochkovi sp. n. from the blue-and-white flycatcher Cyanoptila cyanomelana (Temminck) (Muscicapidae) and P. cyanopicae sp. n. from the azure-winged magpie Cyanopica cyanus (Pallas) (Corvidae). Proctophyllodes bochkovi belongs to the caulifer species group. It differs from the most similar species, P. cotyledon Trouessart, 1899, in having the genital arch not extending to the level of epimerites IIIa, the terminal lamellae symmetrical with pennate venation and by the absence of the paragenital apodemes in males, and in having a longer lobar region (78–88 μm) in females. Proctophyllodes cyanopicae belongs to the musicus group and is readily distinguished from the most similar species, P. picae (Koch, 1841), in having the hysteronotal shield with well pronounced circular lacunae, and setae g situated closer to the level of setae ps3 than to the genital arch tips in males, and in having the terminal cleft shaped as a longitudinal rectangle 50–55 μm long in females.


PeerJ ◽  
2021 ◽  
Vol 9 ◽  
pp. e11093
Author(s):  
Qiang Li ◽  
Xindong Cui ◽  
Plamen Stanislavov Andreev ◽  
Wenjin Zhao ◽  
Jianhua Wang ◽  
...  

Based initially on microfossils, Nostolepis is one of the first known ‘acanthodians’, which constitute a paraphyletic assemblage of plesiomorphic members of the total group Chondrichthyes. Its wide distribution has potential implications for stratigraphic comparisons worldwide. Six species of Nostolepis have been reported in China, including one species from the Xitun Formation (Lochkovian, Lower Devonian) of Qujing, eastern Yunnan. Acid preparation of rock samples from the Xitun Formation has yielded abundant acanthodian remains. Based on both morphological and histological examinations, here we identify five species of Nostolepis, including two new species. N. qujingensis sp. nov. is characterized by thin scales devoid of the neck anteriorly and the dentine tubules rarely present in the anterior part of the crown. N. digitus sp. nov. is characterized by parallel ridges on anterior and lateral margins of the crown, and the neck constricted and ornamented with pore openings. We extend the duration of N. striata in China from the Pridoli of Silurian (Yulungssu Formation) to the Lower Devonian in Qujing and report the first occurrences of N. amplifica and N. consueta in this region. This study increases the diversity of the Lower Devonian Xitun Fauna and provides a better understanding of the paleogeographic distribution of Nostolepis.


2014 ◽  
Vol 59 (4) ◽  
Author(s):  
Eliza Glowska ◽  
Izabella Laniecka

AbstractA new quill mite species Neopicobia hepburni sp. nov. is described from the Ecuadorian Piculet Picumnus sclateri Taczanowski (type host) and the Olivaceous Piculet Picumnus olivaceus Lafresnaye (Piciformes: Picidae) from Peru. Females of N. hepburni are distinguishable from most similar species N. ea Skoracki et Unsoeld by the propodonotal shield divided into 3 sclerites, the pygidial shield with a vertical furrow and wing-like appendages, the presence of the genital lobes, setae f2 2.7 times longer than f1 and length ratio of ag1:ag2:ag3 equals 2:1:2. In females of N. ea, the propodonotal shield is entire, the pygidial shield is oval, without vertical furrow and appendages, the genital lobes are absent, setae f2 are 4.5–5.5 times longer than f1 and length ratios of ag1:ag2:ag3 are 2.2–2.7:1:3–3.2.


1989 ◽  
Vol 121 (6) ◽  
pp. 439-443 ◽  
Author(s):  
Carmine A. Lanciani ◽  
Bruce P. Smith

AbstractRecent studies have suggested that the stylostome of parasitic larval water mites of the genus Arrenurus Dugès is a product of the mite, not the host. We tested this hypothesis by comparing stylostomes of the similar species Arrenurus novimarshallae Wilson and Arrenurus pseudotenuicollis Wilson formed in each of two mosquito species, Anopheles crucians Wiedemann and Anopheles quadrimaculatus Say: if the stylostome is produced by the mite, not the host, then stylostome form is likely to be constant in different host species parasitized by the mite.The stylostome of A. pseudotenuicollis is a short, broad, convoluted sac, and stylostomes within the two host species did not differ significantly. The stylostome of A. novimarshallae is a long, thin, convoluted tube, and although it was significantly smaller in A. quadrimaculatus than in A. crucians, its form remained constant. Dark pigment deposits around the stylostome’s attachment point and along the tube may represent host defense that reduces stylostome growth in A. quadrimaculatus. Laboratory-reared A. novimarshallae often die after a brief engorgement period on A. quadrimaculatus but not on A. crucians.Thus, the stylostome of these two mite species has a consistent form in each of two host species, an observation compatible with the hypothesis that the stylostome is a product of the mite. In addition, the ease of distinguishing these two mite species on the basis of stylostome morphology attests to the potential value of the stylostome as a taxonomic character.


1961 ◽  
Vol 68 (2) ◽  
pp. 162-170
Author(s):  
L. T. Threadgold ◽  
R. A. R. Gresson

SynopsisElectron micrographs of the anterior part of the mid-gut and hepatic cæca of Blatta orientalis Linn, show epithelial cells in both secretory and absorptive cycles. The epithelial cells possess microvilli and their lateral margins are provided with irregularly shaped projections that interdigitate with neighbouring cells. Vacuole-like structures were observed in association with the mitochondria of absorptive and degenerating cells. These vacuoles, it is suggested, represent degeneration products. Bundles of saccules and associated groups of vacuoles and vesicles represent the Golgi rods and granules of light microscopy. Epithelial cells engaged in absorption differ from those in which the elaboration of secretion is taking place, in the arrangement of the Golgi saccules and vacuoles, in the size of the Golgi vacuoles, in the distribution of the mitochondria, and in the possession of a less extensive endoplasmic reticulum.


2010 ◽  
Vol 55 (4) ◽  
Author(s):  
Nevena Kolarova

AbstractA new representative of the subfamily Analginae, Anhemialges mironovi sp. nov., collected from feathers of the Savi’s warbler Locustella luscinoides (Savi, 1824) (Passeriformes, Sylviidae) from the region of South Dobrudzha (Bulgaria), is described. This species is most similar to A. gaudi Mironov, 2009. The new species differs from A. gaudi by the following features in males: the incision in the interlobar membrane is longer, the gastral shield is split into two parts, and the hysteronotal shield bears a crescent-shaped subtegumental sclerotisation.


Zootaxa ◽  
2018 ◽  
Vol 4461 (2) ◽  
pp. 233 ◽  
Author(s):  
LUIZ GUSTAVO A. PEDROSO ◽  
FABIO AKASHI HERNANDES

Two new feather mite species of the family Analgidae are described from the Rufous-collared Sparrow, Zonotrichia capensis (Müller, 1776) (Passeriformes: Passerellidae), from Brazil: Analges ticotico sp. nov. (Analginae) and Strelkoviacarus brasiliensis sp. nov. (Anomalginae). Analges ticotico sp. nov. is characterized by the heteromorphic males having three short and rounded spines on the inner margin of femur III, the anterior margin of adanal shield convex, the hysteronotal shield with the anterior margin sinuous, and the terminal lamella rectangular. Strelkoviacarus brasiliensis sp. nov. is characterized by the anterior ends of the adanal shields being convergent and encompassing the bases of setae ps3 in males, and by the strongly convex median extension of the prodorsal shield and short dorsal setae vi, c2, d2 and e2 in females. These species represent the first records of corresponding feather mite genera in Brazil. 


Acarologia ◽  
2018 ◽  
Vol 58 (4) ◽  
pp. 881-896
Author(s):  
Ioana Cristina Constantinescu ◽  
Oana Paula Popa ◽  
Luis Ovidiu Popa ◽  
Ioana Cobzaru ◽  
D. Khlur B. Mukhim ◽  
...  

Two new feather mite species of the genus Montesauria Oudemans, 1905, collected from thrushes (Turdidae) in India, are described: Montesauria hernandesi sp. n. from Turdus dissimilis Blyth, 1847 and M. caerulea sp. n. from Myophonus caeruleus (Scopoli, 1786). Both species belong to the merulae species group, being morphologically closest to other two species of the genus, previously described from birds of the family Turdidae in Asia (Japan): M. sibirica Kuroki, Nagahori and Mironov, 2006 and M. aurea Kuroki, Nagahori and Mironov, 2006, respectively. The new species most clearly differ from those described in Japan by the dorsal shield ornamentation. In both sexes of M. hernandesi sp. n., the ornamentation of the prodorsal and hysteronotal shields is represented by round and ovate lacunae, and the ornamentation of the lobar shield of females has few ovate lacunae. In both sexes of M. caerulea sp. n., the ornamentation of the hysteronotal shield is very particular, with large and almost round lacunae in the anterior half and small ovate lacunae in the posterior half.


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