A new genus and two new species of melicharid mites (Acari: Mesostigmata) associated with wood-decaying fungi and mycophagous erotylid beetles (Coleoptera: Erotylidae) in Europe

Zootaxa ◽  
2021 ◽  
Vol 4980 (1) ◽  
pp. 157-173
Author(s):  
PETER MAŠÁN ◽  
OMID JOHARCHI ◽  
VLADIMIR V. ABRAMOV

We describe a new genus in the mite family Melicharidae, Mycomelichares Mašán & Joharchi gen. nov., to accommodate two new species, Mycomelichares polypori Mašán & Joharchi sp. nov. and Mycomelichares reductus Mašán & Joharchi sp. nov. on the basis of specimens collected on wood-decaying fungi and/or mycophagous beetles of the genera Triplax Herbst and Tritoma Fabricius (Coleoptera: Erotylidae) in Slovakia and European part of Russia, respectively. Moreover, two previously described Proctolaelaps species—P. cyllodi Samšiňák, 1960 and P. slovacus Mašán, 1998 are transferred to the newly established genus. The new genus is characterized by specific characters in tritosternum (enlarged and brush-shaped, having their laciniae thickened, basaly fused and distally densely pilose), chelicerae (slightly dish-shaped digits with long, narrow and sharp denticles), ventral hypostome (setae h1 enlarged, thickened and distally flattened), setation (tendency towards placement of R series setae on soft integument, and reduction of some setae on idiosoma and legs), and unusual ecological specialisation on fungal substrates. Mycomelichares polypori sp. nov. is adapted to the life in sporophores of the basidiomycete bracket fungus, Polyporus squamosus (Polyporaceae). Mites of this species can be abundantly found on the lower fertile surface of the fungus, including large spore-bearing pores. Furthermore, keys to the melicharid genera reported from Palaearct, and the species of the genus are provided. 

2021 ◽  
Vol 26 (1) ◽  
pp. 85-123
Author(s):  
Samuel Geremias Dos Santos Costa ◽  
Cal Welbourn ◽  
Pavel Klimov ◽  
Almir Rogério Pepato

Unlike most terrestrial parasitengone mites (chiggers, erythraeids), known mostly from parasitic and easy-to-collect larvae, smaridid systematics are mainly based on the post larval instar. Larvae are rarely collected, and their biology and host associations are virtually unknown. Here we infer phylogenetic relationships of Smarididae based on 50 morphological characters using both larval and post larval instars, including data on the larval morphology of Trichosmaris obtained through rearing. The subfamily Smaridinae, as currently understood, was recovered paraphyletic: the genus Smaris was rendered as basal smaridid lineage, while the genus Fessonia (Smaridinae) was sister to Hirstiosomatinae, albeit with moderate support. Our analysis suggests that the genus Surasmaris Southcott, 1995 is a junior synonym of Trichosmaris Southcott, 1963 (syn. nov.), and two Sphaerotarsus species should be placed into Hirstiosoma: Hirstiosoma baenai (Mayoral & Barranco, 2017) comb. nov., Hirstiosoma quercus (Yazdanpanah, Saboori & Hakimitabar, 2016) comb. nov. Sphaerotarsus monticolus Southcott, 1997 and S. leptopilus were recovered as independent lineages, and hence, a new genus Southcottiana gen. nov. is proposed to include Southcottiana monticola comb. nov (Southcott, 1997). We describe two new species, Trichosmaris paulensis sp. nov. (adults, larvae) and T. calcarensis sp. nov. (larva), and present the first description of larval T. dispar, the type species of Trichosmaris, previously known only from post larval instars. Based on the above results, we give a key to larval genera of Smarididae and a key to species of Trichosmaris (larval and postlarval instars).


Zootaxa ◽  
2017 ◽  
Vol 4337 (2) ◽  
pp. 151 ◽  
Author(s):  
VALERIE M. BEHAN-PELLETIER

The oribatid mite family Tegoribatidae has been represented in continental North America by the genera Tegoribates and Tectoribates. Herein, I describe a new genus of Tegoribatidae from North America, Protectoribates, and two new species: Protectoribates occidentalis sp. nov., from forest habitats in western North American, and Tegoribates walteri sp. nov., from forest habitats in California, based on adults and immatures. The descriptions of adults of the type species of Tegoribates, T. subniger Ewing, and other North American species, T. americanus Hammer and T. bryophilus Woolley, are expanded and immatures of T. americanus are described for the first time. Immatures of Protectoribates are apheredermous whereas those of Tegoribates are eupheredermous, though retaining centrodorsal setae. Scutozetes Hammer 1952 is transferred from Tegoribatidae to Ceratozetidae after re-examination of type material. I provide a revised diagnosis for Tegoribates and a key to tegoribatid genera and species for North America. Finally, I provide a revised diagnosis for Tegoribatidae based on world genera. 


1989 ◽  
Vol 3 (6) ◽  
pp. 771 ◽  
Author(s):  
MS Harvey

A new halacaroid family, Pezidae, is erected for the new genus Peza, with two new species Peza ops (type species) and Peza daps. P. ops has been widely collected in south-eastern Australia, while P. daps is known only from a single female taken from the gill chamber of a burrowing crayfish, Engaeus fultoni Smith & Schuster (Crustacea : Decapoda : Parastacidae), in the Otway Ranges, Victoria. During winter and spring, females of both species apparently attach their eggs to their hind legs. The Pezidae is regarded as the sister-group of the remaining Halacaroidea.


Zootaxa ◽  
2021 ◽  
Vol 4966 (1) ◽  
pp. 41-53
Author(s):  
ALEXANDER A. KHAUSTOV ◽  
ALEXANDER V. PETROV ◽  
VASILIY B. KOLESNIKOV

A new genus and species, Unguitarsonemus paradoxus n. gen., n. sp. and a new species, Pseudotarsonemoides peruviensis n. sp. (Acari: Trombidiformes: Tarsonemidae), are described based on phoretic females collected on bark beetles Phloeotribus pilula and Ph. biguttatus, respectively, from Peru. A key to species of the genus Pseudotarsonemoides is provided. 


Zootaxa ◽  
2004 ◽  
Vol 728 (1) ◽  
pp. 1
Author(s):  
E. Akingbohungbe

Namaquaropus niger gen nov. & sp.nov. is described from South Africa. In addition, two new species of the subgenus Jehania Distant of Isometopus Fieber (I. mirus sp. nov. and I. maculipennis sp. nov.), and Paloniella flavicolor sp. nov. are described. With these, the known species of Isometopinae in South Africa now number sixteen.


1954 ◽  
Vol 2 (1) ◽  
pp. 143 ◽  
Author(s):  
EF Riek

This paper deals with the systematics of all known Australian Mecoptera. Two new species are described: Austrobittocw anomalus (Austrobittacus is a new genus) and Harpobittacus phaeoscius; and three new subspecies: Harpobittacus australis rubripes, H. tillyardi albatus, and H. t. rubricatus.


2017 ◽  
Vol 22 (3) ◽  
pp. 341
Author(s):  
Mercia Elias Duarte ◽  
Edmilson Santos Silva ◽  
Denise Navia

Eight new taxa of Eriophyidae mites associated with native trees in the Cupania genus—C. oblongifolia Mart. and C. impressinervia Acev (Sapindaceae)—from the Atlantic Forest in Brazil, are described and illustrated. They include two new genera and two new species of Nothopodinae, Colopodacini (Setibia domatiagena   gen. nov., sp. nov. and Aricolopodos alagoensis gen. nov., sp. nov.), one new genus and two new species of Cecidophyinae, Colomerini (Euryslobos keronidos gen. nov., sp. nov. and Gammaphytoptus cupanius sp. nov.), and one new species of Phyllocoptinae, Tegonotini (Shevtchenkella caboata sp. nov.).


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