Pre-imaginal stages of Cychrus schmidti Chaudoir, 1837, and Cychrus semigranosus Palliardi, 1825, with a key to the larvae of the European Cychrus species (Coleoptera: Carabidae)

Zootaxa ◽  
2012 ◽  
Vol 3361 (1) ◽  
pp. 1-17 ◽  
Author(s):  
ENRICO BUSATO

Among the several European and Asiatic species belonging to the genus Cychrus Fabricius, the pre-imaginal morphology isknown just for a few of them. In the present work the larval morphology of Cychrus schmidti and C. semigranosus is described.The morphology of the first species is unique due to its chaetotaxy, which is completely different from that of all of the otherCychrus larvae described so far. The latter are characterized by completely glabrous thoracic and abdominal tergites. In C.schmidti, the tergites are covered by several long setae, a feature never recorded in other Carabidae Carabinae species. Basingon actual knowledge, a preliminary identification key of the European larvae of the Cychrus genus is provided. In the presentcontribution, the pupa of C. schmidti is also described; this is the first pupa of a species belonging to the Cychrus genus to be depicted. Moreover, new data on the biology of C. schmidti were collected from a laboratory breeding programme.

2017 ◽  
Vol 26 (2) ◽  
pp. 282-286
Author(s):  
D.R. Kasparyan ◽  
M. López-Ortega

A new species of the tribe Hemigasterini, Platymystax xalapa sp. nov., is described from the Mexican State of Veracruz. It is the first species of the genus described from the New World. A preliminary identification key to all known seven species of Platymystax of the world fauna is provided.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Krzysztof Szpila ◽  
Kinga Walczak ◽  
Nikolas P. Johnston ◽  
Thomas Pape ◽  
James F. Wallman

AbstractThe first instar larva of a species of the Australian endemic genus Aenigmetopia Malloch is described for the first time, along with the first instar larvae of three other Australian species representing the genera Amobia Robineau-Desvoidy and Protomiltogramma Townsend. Larval morphology was analysed using a combination of light microscopy, confocal laser scanning microscopy and scanning electron microscopy. The following morphological structures are documented: pseudocephalon, antennal complex, maxillary palpus, facial mask, modifications of thoracic and abdominal segments, anal region, spiracular field, posterior spiracles and details of the cephaloskeleton. Substantial morphological differences are observed between the three genera, most notably in the labrum and mouthhooks of the cephaloskeleton, sensory organs of the pseudocephalon, spinulation, sculpture of the integument and form of the spiracular field. The first instar larval morphology of Aenigmetopia amissa Johnston, Wallman, Szpila & Pape corroborates the close phylogenetic affinity of Aenigmetopia Malloch with Metopia Meigen, inferred from recent molecular analysis. The larval morphology of Amobia auriceps (Baranov), Protomiltogramma cincta Townsend and Protomiltogramma plebeia Malloch is mostly congruent with the morphology of Palaearctic representatives of both genera.


Zootaxa ◽  
2011 ◽  
Vol 2989 (1) ◽  
pp. 1 ◽  
Author(s):  
HERBERT RÖSLER ◽  
AARON M. BAUER ◽  
MATTHEW P. HEINICKE ◽  
ELI GREENBAUM ◽  
TODD JACKMAN ◽  
...  

A review of the taxonomy, phylogeny, and zoogeography of all currently recognized Gekko species is provided based on morphology (including size, scalation, color, and pattern) and mitochondrial and nuclear DNA sequence data. We distinguish six morphological (phenotypic) species groups within the gekkonid genus Gekko: the G. gecko, G. japonicus, G. monarchus, G. petricolus, G. porosus, and G. vittatus groups, all of which receive support from molecular phylogenetics. The taxon G. reevesii, formerly evaluated as a synonym of G. gekko, is revalidated herein at specific rank. Furthermore, a preliminary identification key of all currently recognized Gekko taxa is provided.


2012 ◽  
Vol 62 (1) ◽  
pp. 117-127 ◽  
Author(s):  
Frederik H. Mollen ◽  
John W.M. Jagt

ABSTRACT Mollen, F.H. and Jagt, J.W.M. 2012. The taxonomic value of rostral nodes of extinct sharks, with comments on previous records of the genus Lamna (Lamniformes, Lamnidae) from the Pliocene of Lee Creek Mine, North Carolina (USA). Acta Geologica Polonica, 62 (1), 117-127. Warszawa. Shark rostral nodes from the Yorktown Formation (Zanclean, early Pliocene) of Lee Creek Mine, North Carolina (USA), previously assigned to the genus Lamna Cuvier, 1816, have been reinterpreted using a preliminary identification key for extant Lamniformes based on rostral morphology. In addition, the fossil rostral nodes have been compared in detail with Recent material of both the porbeagle, Lamna nasus (Bonnaterre, 1788) and the salmon shark, Lamna ditropis Hubbs & Follet, 1947. Despite the fact that the rostra compared relatively well with those of Recent Lamna, the Lee Creek Mine specimens proved to differ significantly in having near-parallel lateral rostral cartilages that join the rostral node individually, instead of abutting ones. Based on this observation, we here propose to strike the genus Lamna from the Lee Creek Mine faunal list, so long as no other diagnostic material is forthcoming. These partially preserved rostra are likely to have belonged to extinct taxa within the families Lamnidae or Otodontidae, both of which have been documented from the Yorktown Formation on the basis of isolated teeth of at least three species, Cosmopolitodus hastalis (Agassiz, 1838), Megaselachus megalodon (Agassiz, 1835) and Parotodus benedenii (Le Hon, 1871).


Zootaxa ◽  
2009 ◽  
Vol 2304 (1) ◽  
pp. 1-20 ◽  
Author(s):  
M. JOCQUE ◽  
W. BLOM

Mysida are small, mostly marine crustaceans that are an important element of food webs, specifically as prey for several commercially important fish species. Taking their ecological and economical importance into account, relatively little attention is attributed to these organisms, and they are often neglected in biodiversity surveys and studies. To draw attention to these animals and stimulate research in New Zealand, we summarize information available for New Zealand Mysidae. We present a checklist of the 17 species recorded in New Zealand waters as well as a preliminary identification key to species based on the existing literature. We also provide an overview of mysid material available in collections in New Zealand.


2011 ◽  
Vol 2011 ◽  
pp. 1-5 ◽  
Author(s):  
M. C. Bloor

An investigation was undertaken to establish ifGammarus pulexandAsellus aquaticuspreferred a diet of unconditioned, artificially or naturally conditioned alder leaves (Alnus glutinosa). Standardised, 24 hourex situfeeding assays were undertaken with both species to determine their food preference. The results showed thatA. aquaticusate more leaf material compared toG. pulex(Z 23.909,P0.001) when exposed to all three test variables. Also, bothG. pulexandA. aquaticusdemonstrated a preference for naturally conditioned leaves compared to the other two variables, with unconditioned leaves proving the least popular food option for both macroinvertebrates (Z 18.803, ). However, both species ate varying amounts of all the leaf treatments (Z 136.399, ). Subsequently, the author outlined a feeding methodology for natural alder leaf conditioning that could be used during a laboratory breeding programme.


Hydrobiologia ◽  
1992 ◽  
Vol 245 (3) ◽  
pp. 169-177 ◽  
Author(s):  
Henri J. Dumont ◽  
Anatoli Y. Haritonov ◽  
Sergei N. Borisov

Author(s):  
Matthias Seidel ◽  
Vít Sýkora ◽  
Richard A. B. Leschen ◽  
Martin Fikáček

The New Zealand species of the water scavenger beetle genus Berosus Leach, 1817 are reviewed based on freshly collected material and museum specimens. Four species are recognized: Berosus pallidipennis (Sharp, 1884) widespread in the North and South Islands, B. muellerorum sp. nov. from the eastern part of the North Island, and B. halasi sp. nov. and B. maru sp. nov., both endemic to central part of South Island. The synonymy of B. mergus Broun, 1886 with B. pallidipennis is confirmed and lectotypes for both taxa are designated. The larval morphology of B. pallidipennis and B. muellerorum is briefly discussed. Distributional data of all species are reported and illustrated, indicating a noticeable lack of Berosus species in the northern part of North Island and in Stewart Island and the presence of two rare species in the South Island, east of Southern Alps. An identification key to New Zealand species of the genus is provided


Zootaxa ◽  
2020 ◽  
Vol 4810 (2) ◽  
pp. 305-327
Author(s):  
NICOLAS LAVESQUE ◽  
MARIO H. LONDOÑO-MESA ◽  
GUILLEMINE DAFFE ◽  
PAT HUTCHINGS

Telothelepodidae and Thelepodidae from French waters are revised based on material available in French marine stations and newly collected specimens. This work is the second part of the Spaghetti Project aiming to revise French species of “Spaghetti” worms. It describes three new species using both morphological and molecular tools: Streblosoma cabiochi n. sp., Streblosoma lindsayae n. sp. and Thelepus corsicanus n. sp. This study also permitted us to detect the presence of an Asiatic species, Thelepus japonicus, in Arcachon Bay and Normandy, introduced via oysters transfers. An identification key for European species of both families is also provided. 


Zootaxa ◽  
2019 ◽  
Vol 4648 (1) ◽  
pp. 165-177
Author(s):  
VLADIMÍR PAPÁČ ◽  
NATÁLIA RASCHMANOVÁ ◽  
ĽUBOMÍR KOVÁČ

New species of Megalothorax Willem, 1900 from Dobšinská Ice Cave, Slovakia, M. dobsinensis sp. n., is described and illustrated. New species inhabits a cold habitat along an inversed temperature gradient at the cave entrance. M. dobsinensis sp. n. differs from other species of the genus by the lack of chaeta X on Ant. IV and by T-shaped inner chaetae of thoracic and abdominal sensory fields. Only two other species, M. tuberculatus Deharveng & Beruete, 1993 and M. sanctistephani Christian, 1998 lack chaeta X on Ant. IV. M. dobsinensis sp. n. differs from both species by chaetotaxy of antennae and abdomen. Summary tables of antennae and legs chaetotaxy and dichotomous identification key for species with smooth mucro are provided. 


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