scholarly journals Splendid Hybrids: The Effects of a Tiger Beetle Hybrid Zone on Apparent Species Diversity

2012 ◽  
Vol 2012 ◽  
pp. 1-10
Author(s):  
Mathew L. Brust ◽  
W. Wyatt Hoback ◽  
Stephen M. Spomer

Nonexpert citizen groups are being used to monitor species to track ecosystem changes; however, challenges remain for proper identification, especially among diverse groups such as beetles. Tiger beetles,Cicindelaspp., have been used for biological diversity monitoring because of their diversity and the ease of recognition. The finding of an apparent hybrid zone amongCicindela denverensisCasey,Cicindela limbalisKlug, andCicindela splendidaHentz in central Nebraska prompted a detailed study of the biogeography of this species group within Nebraska, a test of characteristics that could be used by citizen scientists, and limited breeding experiments. This study suggests that whileC. denverensisappears to hybridize with bothC. limbalisandC. splendidawithin the hybrid zone, all three species maintain their integrity across most of their ranges, largely occupy unique geographic regions, and at leastC. denverensisandC. splendidacooccur in many areas with no evidence of hybridization. Evidence of hybridization betweenC. limbalisandC. splendidawas found at only two sites. Furthermore, breeding experiments with virginC. splendidaandC. denverensisshowed that they are capable of producing hybrid larvae in the laboratory. The presence of morphological intergrades serves as a cautionary note when using biological indicator species.

Zootaxa ◽  
2018 ◽  
Vol 4526 (3) ◽  
pp. 381
Author(s):  
LYLIA BOUMENDJEL ◽  
NICOLAS RABET ◽  
MOUNIA AMAROUAYACHE

A new species of Chirocephalus collected in temporary freshwater ponds in Northeastern Algeria is described. Chirocephalus sanhadjaensis sp. nov. seems to be restricted to Ain-Magroun and Belkroun pools (Skikda Province). The most similar species is C. marchesonii Ruffo & Vesentini, 1957, which is endemic to Italy. The new taxon, belonging to the “diaphanus” species group of the genus Chirocephalus, is identifiable from all congeners primarily by the shape of the antennal appendages and that of the apex of the distal antennomere of the antennae. The resting eggs of C. sanhadjaensis sp. nov. are similar to those of C. diaphanus or C. salinus but are larger (448.24 ± 30.93 µm). The restricted distribution of this species confirms the high biological diversity of the area of the Guerbes-Sanhadja eco-complex. 


1974 ◽  
Vol 106 (6) ◽  
pp. 561-568 ◽  
Author(s):  
Richard Freitag

AbstractFemales of species in Cicindela have a groove or pit in the mesepisternum which is concluded to be a mating structure, "coupling sulcus," that is held by the mandibles of the male. Six character states of the coupling sulcus are described, and may be useful for identification at the species and species group levels. Primitive (groove) and advanced (cavity) states of the coupling sulcus are derived by comparison with a classification of North and South American Cicindela based on the male genitalia. I suggest the following hypothesis: the female mating structure evolved in response to the highly agile behaviour of diurnal tiger beetles; the advanced cavity-like coupling sulcus is a result of population adjustments to long periods of hot conditions; and the non-agile, crepuscular, and nocturnal habits of primitive tiger beetles such as Amblycheila, Omus, and Megacephala have resulted in no selection for a female mesepisternum coupling sulcus.


Zootaxa ◽  
2019 ◽  
Vol 2707 (1) ◽  
pp. 1 ◽  
Author(s):  
MICHAEL F. BRABY

Taxonomy is a major scientific discipline that underpins the preservation of biological diversity, but the discipline of taxonomy itself has, until recently, remained somewhat disconnected from conservation biology. Checklists summarise available taxonomic and systematic knowledge and in part provide a framework to optimise efforts and scarce resources for biodiversity conservation. Butterflies have been identified as a key bioindicator group of invertebrates for monitoring, assessing environmental change and for biodiversity conservation. A revised checklist of the butterflies (Hesperioidea: Hesperiidae and Papilionoidea: Papilionidae, Pieridae, Nymphalidae, Riodinidae, Lycaenidae) of Australia is presented, incorporating recent changes to both the higher and lower systematic levels of classification based on review of the literature, mandatory changes of specific epithets to achieve gender agreement, together with recommended common names. A total of 1,134 available species group names are listed, of which 423 are junior synonyms. Currently, 596 valid lower taxa (i.e. species and subspecies) are recognised in the fauna. Of the valid species, 430 are recorded from Australia, of which 404 occur on the mainland and Tasmania and 26 are restricted to remote oceanic islands. Gender changes affect 40 species/subspecies group names, of which 27 are valid taxa and 13 are junior synonyms. Comments are made on the size and composition of the fauna, taxonomic impediment, species concepts and utility of subspecies. Modelling the rate of species accumulation based on taxonomic research effort over the past 100 years using a generalized logistic function suggests that about 91% of the Australian butterfly fauna has been catalogued so far. A detailed review of known problems concerning the taxonomy among the lower systematic levels (i.e. genera, species and subspecies) is presented as candidates for future systematic research. Although Australian butterflies are relatively well-known taxonomically, it is estimated that there are approximately 40 species yet to be formally recorded/recognised and more than 60 problems at the lower systematic levels in which the nomenclature, taxonomic status of species/subspecies or monophyly of genera need to be resolved.


2015 ◽  
Vol 26 (3) ◽  
pp. 132-155 ◽  
Author(s):  
Radomir Jaskuła ◽  
Tomasz Rewicz ◽  
Kajetan Kwiatkowski

The diversity and distribution of Cicindelinae in Morocco, including new unpublished data, is summarized and discussed. In total 17 species are reported from the country. Cicindela campestris campestris is excluded from the Moroccan fauna while the occurrence of Myriochila mirei is doubtful and should be confirmed by new data. The area adjacent to the Mediterranean Sea and Atlantic Ocean coastlines holds the highest species diversity, while mountainous regions are characterized by lower diversity but also by high level of species endemism. Grouped on the basis of their chorotypes, Moroccan Cicindelinae fall into six different groups: West Mediterranean (44% of Cicindelinae species), Maghreb endemics (22%), Mediterranean (11%), Saharian (11%), Mediterranean-Westturanian (6%) and Afrotropico-Indo-Mediterranean (6%). According to their phenology, the Moroccan tiger beetles can be divided into three groups: 1) spring active species, 2) spring-summer active species, and 3) summer active species.


1998 ◽  
Vol 28 (3) ◽  
pp. 247-247 ◽  
Author(s):  
Joachim ADIS ◽  
Wilfried PAARMANN ◽  
Maristela A. AMORIM ◽  
Erik ARNDT ◽  
Claudio R. V. da FONSECA

Over a seven year period from 1991 to 1997, 22 species of tiger beetles, representing nine genera, were recorded near Manaus, Brazil. In the Whitewaterfloodplains along the Rio Solimões-Amazonas (Ilha de Marchantaria), three diurnal species inhabit inundation forests and six species (two diurnal, four nocturnal) live in open areas. Data on their natural history and adaptation to living conditions in floodplains are presented. Fifteen species were located on non-flooded uplands (Reserva Florestal A. Ducke). Five diurnal species inhabit the forest floor, two species are canopy dwellers, and eight species (seven diurnal, one nocturnal) live in open areas on whitesand or laterite. Only one species, Pentacomia lacordairei, was found in both floodplain and upland forests. A key to the larvae of tiger beetle genera located near Manaus is presented.


2004 ◽  
Vol 13 (1) ◽  
pp. 23-27
Author(s):  
F. Cassola

Three tiger beetle species, Therates differens Sawada & Wiesner, 1999, Calomera brevipilosa (W. Horn, 1908) and Cosmodela separata (Fleutiaux, 1893), are recorded from Vietnam for the first time. The known tiger beetle fauna of this country is thus raised to a total of 132 species (45, or 34% of which are endemic), what definitely ranges Vietnam among the countries of the world with the richest outstanding entomological biodiversity (km2/species ratio: 2.507).


Zootaxa ◽  
2021 ◽  
Vol 5016 (2) ◽  
pp. 243-256
Author(s):  
ANDREY V. MATALIN ◽  
EVGENY E. PERKOVSKY ◽  
DMITRY V. VASILENKO

A new fossil tiger beetle species, Goriresina fungifora gen. n., sp. n. (Coleoptera, Cicindelidae), is described from Eocene Rovno amber. The new genus belongs to the subtribe Iresiina, tribe Cicindelini, due to the glabrous head, the labrum with six submarginal setae (latero-basal setae very long) and two apical teeth with notch between them, the glabrous and globular pronotum, the lack of setae on the metepisternum and metepimeron, as well as on the visible parts of abdominal sternites, the single long seta each on the fore- and mesotrochanter. The new species is characterized by the long and moderately convex labrum, two clypeal setae, the elongate and apicad converging elytra with an angularly, but smoothly rounded apex, the small and sharp sutural spine, the probable presence of an apical portion of the elytral humeral spot, a slightly sinuate, transverse medial fascia with an extended and downward directed apical portion, and a slightly transverse basal portion of the apical spot. This is the first record of a tiger beetle in Rovno amber and only a fourth well-preserved Cicindelidae from fossil resins.  


2020 ◽  
Vol 12 (15) ◽  
pp. 17129-17137
Author(s):  
Kushal Choudhury ◽  
Chandan Das ◽  
Amar Deep Soren

A faunistic survey was made to assess the tiger beetle fauna from the Chakrashila Wildlife Sanctuary and adjacent rivers for the first time from the western part of Assam, India.  A total of 15 species of tiger beetles (subfamily Cicindelinae) belonging to seven genera were recorded from forest, moist and dry riverine ecosystem using an occasional night trap.  Eight species belonging to five genera were recorded from the riverine ecosystem.  Two species, viz., Cylindera spinolae and Calochroa assamensis, were strictly restricted to the forest and Cosmodela virgula was recorded from both forest and riverine areas.  Cylindera (Eugrapha) minuta, Calochroa flavomaculata, and Lophyra (Spilodia) vittigera were collected using a night trap from the forest area.  The study revealed that habitat degradation due to human interference is the major threat to the tiger beetles in the study area.


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