scholarly journals Two new species of the family Rhynchitidae (Coleoptera: Curculionoidea) from Eocene Baltic amber, with key to species and assumed trophic relationships

Fossil Record ◽  
2021 ◽  
Vol 24 (1) ◽  
pp. 117-127
Author(s):  
Andris Bukejs ◽  
Andrei A. Legalov

Abstract. Two new fossil species of Baltocar Kuschel, 1992 and Pseudomesauletes Legalov, 2001 (Curculionoidea: Rhynchitidae) are described from Eocene Baltic amber. Baltocar sontagae sp. nov. is similar to B. groehni Riedel, 2012 but differs in the shorter rostrum, tarsomere 1 shorter than tarsomere 5 and 1.4× as long as tarsomere 2, longer elytra, and shorter body. Pseudomesauletes lobanovi sp. nov. is similar to P. culex (Scudder, 1893) and P. ibis (Wickham, 1912): the new species differs from P. culex in the larger eyes, longer pronotum, being 0.44× shorter than elytra, and slightly smaller body size; from P. ibis it differs in the smaller body size, rostrum shorter than elytra, and weakly convex pronotum. This is the first record of Pseudomesauletes from Baltic amber and the sixth species of Baltocar. Keys to species of the genus Baltocar and to the Eocene species of the genus Pseudomesauletes are given. Assumed trophic relationships of these fossil taxa are discussed (urn:lsid:zoobank.org:pub:260EBE6E-DA6C-4D6D-A1D2-2C258224622F).

Crustaceana ◽  
2016 ◽  
Vol 89 (4) ◽  
pp. 431-458 ◽  
Author(s):  
Jong Guk Kim ◽  
Jong Guk Kim ◽  
Tae Won Jung ◽  
Jong Guk Kim ◽  
Tae Won Jung ◽  
...  

Herein two new species of the genusSyngastesMonard, 1924 are described from South Korea, with detailed descriptions and illustrations. Both new copepods,Syngastesmulticavussp. nov. andS. pseudofoveatussp. nov., have two inner setae on the first exopodal segment of P2 and P3.Syngastesmulticavussp. nov. most closely resemblesS. gibbosusBartsch, 1999 reported from Australia, as they both have a five-segmented antennule in the female. However,Syngastesmulticavussp. nov. has a rounded body outline instead of the gibbose outline observed inS. gibbosus.Syngastespseudofoveatussp. nov. resemblesS. foveatusBartsch, 1994 in almost all aspects. However, they differ clearly in the number of setae on the first exopodal segment of P2 and P3. We also provide a key to species of the genusSyngastesworldwide. The present study is the first record of the family Tegastidae in Korean waters.


Zootaxa ◽  
2020 ◽  
Vol 4779 (2) ◽  
pp. 260-272
Author(s):  
ALEXANDER A. KHAUSTOV ◽  
ANDREY V. FROLOV

Mites of the family Athyreacaridae are recorded from Asia for the first time. Two new species of Athyreacarus are described, A. indicus sp. nov., collected on the beetles Bolbohamatum laevicolle and B. marginale in India, and A. brevisetosus sp. nov., collected on a beetle Bolboceras sp. in Sri Lanka. An updated key to species of the genus Athyreacarus is provided. 


ZooKeys ◽  
2021 ◽  
Vol 1076 ◽  
pp. 67-81
Author(s):  
Yuji Ise ◽  
Jean Vacelet ◽  
Takato Izumi ◽  
Sau Pinn Woo ◽  
Shau Hwai Tan

Two new species of Discorhabdella are described from Sagami Bay, Japan. Discorhabdella has been suggested to have an ancient Tethyan origin according to discovery of their unique pseudoastrose acanthostyles from late Eocene to Oligocene deposits. This is the first record of the genus from the northwest Pacific and first record of the family Crambeidae from Japan. Discorhabdella hispidasp. nov. is distinctive within the genus by possession of special sigmoid microscleres and C-shaped isochelae with short alae. Discorhabdella misakiensissp. nov. is characterized by short choanosomal subtylostyles, and their length overlapped with that of the ectosomal subtylostyles. Only one other species, Discorhabdella tuberosocapitata (Topsent, 1890), has the same spicule composition. However, all spicule types are larger in D. tuberosocapitata than those of D. misakiensissp. nov., and the shape of the isochelae is different: the alae are more widely opened in D. tuberosocapitata. An identification key to species of the genus Discorhabdella is also provided. The discovery of two new species from warm temperate northwest Pacific extends the geographical distribution of the genus Discorhabdella.


Zootaxa ◽  
2020 ◽  
Vol 4878 (3) ◽  
pp. 401-411
Author(s):  
FABRIZIO FANTI ◽  
MAXIMILIAN G. PANKOWSKI

Two new species of soldier beetles (Coleoptera, Cantharidae) from the Priabonian deposits in Yantarny, Russia (Baltic amber) are described. Cantharis crisantha sp. nov. is characterized by its relatively small body size, laterally rounded prothorax, and simple claws with a small basal tooth. Of particular interest, this specimen has its aedeagus extruded—a feature described for the first time in a representative of the genus Cantharis found in amber, and something rarely seen in all known fossil species of the Cantharidae family. The second described species, Cantharis raeorum sp. nov., is characterized by a pronotum with straight sides and a transverse and concave part near the posterior margin. The species are compared with earlier reported fossil Cantharis.


2017 ◽  
Vol 22 (6) ◽  
pp. 797
Author(s):  
Xin-Feng Zhang ◽  
Tian-Ci Yi ◽  
Jian-Jun Guo ◽  
Dao-Chao Jin

Stenosternum cordata sp. nov. and Stenosternum bifurcata sp. nov., new to science, are described, which is the first record of Hoplomegistidae from Asia. Stenosternum cordata sp. nov. is distinguished by its heart-shaped latigynal shield with two pairs of setae along the lateral margin, and two pairs of setae along the posterior margin of the sternal shield. Stenosternum bifurcata sp. nov. is distinguished by having remarkable bifurcate corniculus, six pairs of setae on the sternal shield and three pairs setae on the latigynal shield. The family Hoplomegistidae Camin & Gorirossi, 1955 is redefined and a key to adult females of species is provided. 


Zootaxa ◽  
2017 ◽  
Vol 4250 (4) ◽  
pp. 347
Author(s):  
ANTONELA MARTELLI ◽  
VIRGINIA LO RUSSO ◽  
GABRIELA VILLARES ◽  
CATALINA T. PASTOR DE WARD

Two new free-living marine nematodes of the family Oxystominidae are described from San Antonio Bay (Río Negro) and San José Gulf (Chubut). Litinium australis sp. n., is characterized by having a rounded tail, by the first and second crown of cephalic setae with different lengths, gubernaculum with apophysis and by the presence of at least four precloacal papillae; Thalassoalaimus nestori sp. n., is characterized by having a conical tail, cephalic setae equal in length, gubernaculum with rounded and dorso-caudally directed apophysis and two precloacal papillae. An emended diagnosis of the genus Thalassoalaimus and a key to species are given. 


2020 ◽  
Vol 25 (4) ◽  
pp. 697-706 ◽  
Author(s):  
Sergey G. Ermilov ◽  
Josef Stary

Two new species of oribatid mites of the family Oppiidae collected from leaf litter in Madagascar are described. Ramuselloppia indistincta sp. nov. differs from Ramuselloppia anomala by larger body size, the presence of epimeral tubercles  and comparatively long lamellar, interlamellar and notogastral setae and the absence of costulae and heads of bothridial setae. An identification key to known species of Ramuselloppia is provided. Lanceoppia (Baioppia) rugosa sp. nov. differs from all species of the subgenus by heavily rugose posterior part of the notogaster. The genus Ramuselloppia and subgenus Lanceoppia (Baioppia) are recorded in the Ethiopian region for the first time; the species Multioppia (Hammeroppia) wilsoni is recorded in Madagascar for the first time.


2020 ◽  
Vol 94 (4) ◽  
pp. 696-715 ◽  
Author(s):  
Mateusz Zmudzinski

AbstractThe fossil record of the family Camerobiidae has been represented by only one species, Neophyllobius succineus Bolland and Magowski, 1990, described from Eocene Baltic amber. These prostigmatan mites are distinguishable by their distinctly long and slender stilt-like legs, and they are associated with aboveground vegetation where they hunt for other small invertebrates. This paper enhances the knowledge of fossil stilt-legged mites. Two new fossil species, N. electrus new species and N. glaesus new species, are described from samples of Baltic amber, and remarks on their morphology and taphonomy are provided. The discovery is complemented with a discussion on morphological singularities (the shape of the prodorsum, the location of setae h1 and h2 in living specimens, and lengths of genual setae), an anomaly of hypertrophied seta (found in the N. glaesus holotype), and some biogeographical issues.UUID: http://zoobank.org/d1602384-ae4f-4f90-b4a1-6cdedd77c9e1


Zootaxa ◽  
2017 ◽  
Vol 4341 (3) ◽  
pp. 375 ◽  
Author(s):  
NADINE DUPÉRRÉ ◽  
ELICIO TAPIA

The spider families Theridiosomatidae and Symphytognathidae found in the Chocó region of Ecuador are examined, a total of 16 and 69 adult specimens were collected respectively in a series of expeditions. In the family Theridiosomatidae, eight new species are described in four different genera; Chthonos kuyllur n. sp.; Naatlo mayzana n. sp.; Ogulnius laranka n. sp., O. paku n. sp.; Theridiosoma ankas n. sp., T. esmeraldas n. sp., T. kullki n. sp., and T. sacha n. sp. We present the first record of the family Symphytognathidae for Ecuador with the description of two new species in two different genera: Anapistula equatoriana n. sp. and Symphytognatha cabezota n. sp. 


2017 ◽  
Vol 22 (4) ◽  
pp. 456 ◽  
Author(s):  
Sergey G. Ermilov ◽  
JOSEF STARÝ

The oribatid mite family Liacaridae (Acari, Oribatida) is recorded in Vietnam for the first time. Two new species of liacarids of the genera Liacarus and Xenillus are described from Tam Dao National Park, northern Vietnam. Liacarus vietnamensis sp. nov. is similar to L. laterostris Mihelčič, 1954 in the morphology of lamellar cusps (inner teeth well-developed; interlamellar tubercle absent) and in having long interlamellar setae and short notogastral setae, but differs by the directions of lamellar cusps and morphology of bothridial setae. Xenillus tamdaoensis sp. nov. is similar to X. longipilus Pérez-Íñigo & Peña, 1995 in having long notogastral setae, insertion of notogastral setae lm posterior to la, and the presence of an interlamellar tubercle, but differs by the morphology and position of lamellar cusps, size of the interlamellar tubercle and length of interlamellar setae.


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