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1.
Previous attempts to resolve the Ceratitis FAR complex (Ceratitis
fasciventris, Ceratitis
anonae, Ceratitis
rosa, Diptera, Tephritidae) showed contrasting results and revealed the occurrence of five microsatellite genotypic clusters (A, F1, F2, R1, R2). In this paper we explore the potential of wing morphometrics for the diagnosis of FAR morphospecies and genotypic clusters. We considered a set of 227 specimens previously morphologically identified and genotyped at 16 microsatellite loci. Seventeen wing landmarks and 6 wing band areas were used for morphometric analyses. Permutational multivariate analysis of variance detected significant differences both across morphospecies and genotypic clusters (for both males and females). Unconstrained and constrained ordinations did not properly resolve groups corresponding to morphospecies or genotypic clusters. However, posterior group membership probabilities (PGMPs) of the Discriminant Analysis of Principal Components (DAPC) allowed the consistent identification of a relevant proportion of specimens (but with performances differing across morphospecies and genotypic clusters). This study suggests that wing morphometrics and PGMPs might represent a possible tool for the diagnosis of species within the FAR complex. Here, we propose a tentative diagnostic method and provide a first reference library of morphometric measures that might be used for the identification of additional and unidentified FAR specimens. 相似文献
2.
Radka B?ízová Lucie Vaní?ková Mária Fa?arová Sunday Ekesi Michal Hoskovec Blanka Kalinová 《ZooKeys》2015,(540):385-404
Ceratitis
fasciventris, Ceratitis
anonae and Ceratitis
rosa are polyphagous agricultural pests originating from the African continent. The taxonomy of this group (the so-called Ceratitis FAR complex) is unclear. To clarify the taxonomic relationships, male and female-produced volatiles presumably involved in pre-mating communication were studied using comprehensive two-dimensional gas chromatography with time-of-flight mass spectrometry (GC×GC-TOFMS) followed by multivariate analysis, and gas chromatography combined with electroantennographic detection (GC-EAD). GC×GC-TOFMS analyses revealed sex specific differences in produced volatiles. Male volatiles are complex mixtures that differ both qualitatively and quantitatively but share some common compounds. GC-EAD analyses of male volatiles revealed that the antennal sensitivities of females significantly differ in the studied species. No female volatiles elicited antennal responses in males. The results show clear species-specific differences in volatile production and provide complementary information for the distinct delimitation of the putative species by chemotaxonomic markers. 相似文献
3.
Chrysantus M. Tanga Aruna Manrakhan John-Henry Daneel Samira A. Mohamed Khamis Fathiya Sunday Ekesi 《ZooKeys》2015,(540):467-487
Comparative analysis of development and survivorship of two geographically divergent populations of the Natal fruit fly Ceratitis
rosa Karsch designated as Ceratitis
rosa R1 and Ceratitis
rosa R2 from Kenya and South Africa were studied at seven constant temperatures (10, 15, 20, 25, 30, 33, 35 °C). Temperature range for development and survival of both populations was 15–35 °C. The developmental duration was found to significantly decrease with increasing temperature for Ceratitis
rosa R1 and Ceratitis
rosa R2 from both countries. Survivorship of all the immature stages of Ceratitis
rosa R1 and Ceratitis
rosa R2 from Kenya was highest over the range of 20–30 °C (87–95%) and lowest at 15 and 35 °C (61–76%). Survivorship of larvae of Ceratitis
rosa R1 and Ceratitis
rosa R2 from South Africa was lowest at 35 °C (22%) and 33 °C (0.33%), respectively. Results from temperature summation models showed that Ceratitis
rosa R2 (egg, larva and pupa) from both countries were better adapted to low temperatures than R1, based on lower developmental threshold. Minimum larval temperature threshold for Kenyan populations were 11.27 °C and 6.34 °C (R1 and R2, respectively) compared to 8.99 °C and 7.74 °C (R1 and R2, respectively) for the South African populations. Total degree-day (DD) accumulation for the Kenyan populations were estimated at 302.75 (Ceratitis
rosa R1) and 413.53 (Ceratitis
rosa R2) compared to 287.35 (Ceratitis
rosa R1) and 344.3 (Ceratitis
rosa R2) for the South African populations. These results demonstrate that Ceratitis
rosa R1 and Ceratitis
rosa R2 from both countries were physiologically distinct in their response to different temperature regimes and support the existence of two genetically distinct populations of Ceratitis
rosa. It also suggests the need for taxonomic revision of Ceratitis
rosa, however, additional information on morphological characterization of Ceratitis
rosa R1 and Ceratitis
rosa R2 is needed. 相似文献
4.
Lucie Vaní?ková Radka B?ízová Antonio Pompeiano Sunday Ekesi Marc De Meyer 《ZooKeys》2015,(540):507-524
The cuticular hydrocarbons (CHs) and morphology of two Ceratitis
rosa Karsch (Diptera: Tephritidae) populations, putatively belonging to two cryptic taxa, were analysed. The chemical profiles were characterised by two-dimensional gas chromatography with mass spectrometric detection. CHs of Ceratitis
rosa that originated from the lowlands and highlands of Kenya comprised of n-alkanes, monomethylalkanes, dimethylalkanes and unsaturated hydrocarbons in the range of the carbon backbone from C14 to C37. Hydrocarbons containing C29, C31, C33 and C35 carbon atoms predominated in these two populations. 2-Methyltriacontane was the predominant compound in both populations. Quantitative differences in the distribution of hydrocarbons of different chain lengths, mainly the C22, C32, C33 and C34 compounds of these two populations, were observed despite indistinct qualitative differences in these hydrocarbons. Morphological analyses of male legs confirmed that the flies belong to different morphotypes of Ceratitis
rosa previously labelled as R1 and R2 for lowland and highland populations, respectively. A statistical analysis of the CH compositions of the putative R1 and R2 species showed distinct interspecific identities, with several CHs specific for each of the lowland and highland populations. This study supports a hypothesis that the taxon Ceratitis
rosa consists of at least two biological species. 相似文献
5.
Massimiliano Virgilio Hélène Delatte Yasinta Beda Nzogela Christophe Simiand Serge Quilici Marc De Meyer Maulid Mwatawala 《ZooKeys》2015,(540):525-538
The fruit fly Ceratitis
cosyra is an important agricultural pest negatively affecting the mango crop production throughout Africa and also feeding on a variety of other wild and cultivated hosts. The occurrence of deeply divergent haplotypes, as well as extensive morphological variability, previously suggested possible cryptic speciation within Ceratitis
cosyra. Here we provide the first large-scale characterisation of the population structure of Ceratitis
cosyra with the main objective of verifying cryptic genetic variation. A total of 348 specimens from 13 populations were genotyped at 16 polymorphic microsatellite loci. Hardy-Weinberg equilibrium (HWE) deviations were observed in 40.4% of locus-population combinations and suggested the occurrence of genetic substructuring within populations. Discriminant Analysis of Principal Components (DAPC) showed genetic divergence between the vast majority of vouchers from Burundi and Tanzania (plus a few outliers from other African countries) and all other specimens sampled. Individual Bayesian assignments confirmed the existence of two main genotypic groups also occurring in sympatry. These data provided further support to the hypothesis that Ceratitis
cosyra might include cryptic species. However, additional integrative taxonomy, possibly combining morphological, ecological and physiological approaches, is required to provide the necessary experimental support to this model. 相似文献
6.
Third instar larvae of members of the Ceratitis FAR complex, including Ceratitis
fasciventris (Bezzi), Ceratitis
anonae Graham, and Ceratitis
rosa Karsch are described and compared with those of Ceratitis
capitata (Wiedemann). Diagnostic characters, such as presence vs. absence of a secondary tooth on the mandibles, previously used to separate Ceratitis
capitata from Ceratitis
rosa, are shown to vary in each species. Significant variation in diagnostic morphological characters among populations of Ceratitis
rosa from east and south Africa is documented; however, the differences are not simply congruent with the R1 and R2 designations based on other studies. Quantitative measures of numerous morphological characters are consistently smaller in the larvae of Ceratitis
fasciventris and distinguish them from other species of the FAR complex. Larvae of Ceratitis
capitata can be distinguished from those of the FAR complex by characters such as absence of accessory plates of the oral ridges, the shape of the anterior spiracle, and the pattern of dorsal spinules. Previous studies indicated that absence of accessory lobes separate the genus Ceratitis from Bactrocera, but this is shown to be incorrect, as accessory lobes are in fact present in several species of Ceratitis. 相似文献
7.
Stephen D. Cairns 《ZooKeys》2016,(562):1-48
The transversely-dividing flabellids consist of five genera (Truncatoflabellum, Placotrochides, Blastotrochus, Placotrochus, and Falcatoflabellum) and 45 species. A dichotomous key is provided for these five genera as well as the species of the genus Truncatoflabellum and Placotrochides, the other three genera being monotypic. A tabular key is also provided for the 38 species of Truncatoflabellum. Two new combinations are suggested (Truncatoflabellum
gambierense and Truncatoflabellum
sphenodeum) and two new species are described (Truncatoflabellum
duncani and Truncatoflabellum
mozambiquensis). All but one species are illustrated and accompanied by their known distribution and a guide to the pertinent literature for the species. New records of 19 of the 45 species are listed. The transversely-dividing flabellids range from the Middle Eocene to the Recent at depths of 2–3010 m, and constitute 60% of the 65 known extant species of transversely-dividing Scleractinia. 相似文献
8.
Labidocera
churaumi
sp. n. is described from Okinawa, southwestern Japan. The female of the new species differs from other congeners in genital compound somite with right postero-lateral and left antero-lateral processes. The male is distinguished from other congeners by the structure of the fifth leg. This new species is assigned to a newly proposed species group, the Labidocera
madurae species group, within the Labidocera
detruncata species complex. In this species complex five Indo-West Pacific species groups are recognized (cervi, detruncata, gangetica, madurae, and pavo) and defined on the basis of difference in sexual dimorphism. 相似文献
9.
Two new species of the new genus Athaumaspis
gen. n., Athaumaspis
minutus
sp. n. and Athaumaspis
tibetanus
sp. n. from Vietnam and China are described. The subgenus Pseudothaumaspis of Thaumaspis is elevated to generic status and another two new species Pseudothaumaspis
bispinosus
sp. n. and Pseudothaumaspis
furcocercus
sp. n. are described, the remaining species of Thaumaspis are reviewed and keyed with the four new species. 相似文献
10.
Only three species belonging to the genus Ectomyelois Heinrich, 1956 are recorded from China, of which two species, Ectomyelois
bipectinalis
sp. n. and Ectomyelois
furvivena
sp. n. are described as new. We discuss the status of Ectomyelois that has been treated as a junior synonym by previous authors; we treat it as a valid genus, revised status, based on characters of the venation and female genitalia. Photographs of the adults and illustrations of the genitalia are given, along with a key to the three known Chinese species. 相似文献
11.
The cushion–star Parvulastra
exigua (Lamarck, 1816) is a widely distributed member of the temperate intertidal fauna in the southern hemisphere. In South Africa, it occurs in sympatry with the endemic Parvulastra
dyscrita (Clark, 1923), the two species being differentiated predominantly by gonopore placement. Several recent studies have suggested that there may be additional cryptic species within the Parvulastra
exigua complex in South Africa, based variously on color morphology, genetic evidence and the differential placement of the gonopores. This paper attempts to resolve whether one or more species are represented within Parvulastra
exigua. A total of 346 Parvulastra
exigua and 8 Parvulastra
dyscrita were collected from sites on the west and south–west coasts of South Africa; morphological, anatomical and genetic analyses were performed to determine whether cryptic species and/or Parvulastra
exigua specimens with aboral gonopores were present. Results show that neither cryptic species nor Parvulastra
exigua specimens with aboral gonopores occur at these sites. This study thus refutes previous claims of the existence of aboral gonopores in South African Parvulastra
exigua, and suggests that a single species is represented. The distinction between Parvulastra
exigua and Parvulastra
dyscrita is also confirmed, and features separating these two species are clarified and documented. 相似文献
12.
The genus Trachionus Haliday, 1833 (Hymenoptera, Braconidae, Alysiinae, Dacnusini) is reported for the first time from China. The genus is represented by four new species from Shaanxi province (NW China), which are described and illustrated. An identification key to the species in China is presented, a key to the genera of the Trachionus group and notes on the relationships with other Palaearctic species are added. 相似文献
13.
14.
In most freshwater ecosystems, aquatic insects are dominant in terms of diversity; however, there is a disproportionately low number of records of alien species when compared to other freshwater organisms. The Chironomidae is one aquatic insect family that includes some examples of alien species around the world. During a study on aquatic insects in Amazonas state (Brazil), we collected specimens of Chironomidae that are similar, at the morphological level, to Chironomus
kiiensis Tokunaga and Chironomus
striatipennis Kieffer, both with distributions restricted to Asia. The objectives of this study were to provide morphological information on this Chironomus population, to investigate its identity using DNA barcoding and, to provide bionomic information about this species. Chironomus DNA barcode data were obtained from GenBank and Barcode of Life Data Systems (BOLD) and, together with our data, were analyzed using the neighbor-joining method with 1000 bootstrap replicates and the genetic distances were estimated using the Kimura-2-parameter. At the morphological level, the Brazilian population cannot be distinguished either from Chironomus
striatipennis or Chironomus
kiiensis, configuring a species complex but, at the molecular level our studied population is placed in a clade together with Chironomus
striatipennis, from South Korea. Bionomic characteristics of the Brazilian Chironomus population differ from the ones of Chironomus
kiiensis from Japan, the only species in this species complex with bionomic information available. The Brazilian Chironomus population has a smaller size, the double of the number of eggs and inhabits oligotrophic water, in artificial container. In the molecular analysis, populations of Chironomus
striatipennis and Chironomus
kiiensis are placed in a clade, formed by two groups: Group A (which includes populations from both named species, from different Asiatic regions and our Brazilian population) and Group B (with populations of Chironomus
kiiensis from Japan and South Korea). Genetic distance between the Brazilian population and specimens in Group A suggests that it was recently introduced in Brazil, and that its country of origin is probably South Korea. 相似文献
15.
16.
Three new genera of Mimallonidae are described. The monotypic genus Tostallo
gen. n. is erected to contain “Perophora” albescens Jones, 1912, which was previously placed in the preoccupied genus Perophora Harris, 1841 and was never formally moved to a valid genus. Perophora is a junior homonym of Cicinnus Blanchard, 1852, but the name albescens is not appropriately placed in Cicinnus due to external and genitalia characteristics entirely unique to the species albescens. The female of Tostallo
albescens
comb. n. is described and both sexes are figured for the first time. Auroriana
gen. n. is erected to contain Auroriana
florianensis (Herbin, 2012), comb. n. previously described as Cicinnus
florianensis, and two new species: Auroriana
colombiana
sp. n. from Colombia and Auroriana
gemma
sp. n. from southeastern and southern Brazil. The female of Auroriana
florianensis is described and figured for the first time. Finally, the monotypic genus Micrallo
gen. n. is erected to include a new species, Micrallo
minutus
sp. n. described from northeastern Brazil. 相似文献
17.
Takafumi Nakano 《ZooKeys》2016,(553):33-51
A new quadrannulate species of Orobdella Oka, 1895, Orobdella
naraharaetmagarum
sp. n., from the mountainous region of western Honshu, Japan is described. Orobdella
naraharaetmagarum is a small species with a body length of less than 5 cm. Phylogenetic analyses using nuclear 18S rRNA and histone H3, as well as mitochondrial cytochrome c oxidase subunit I, tRNACys, tRNAMet, 12S rRNA, tRNAVal, 16S rRNA, tRNALeu and NADH dehydrogenase subunit 1 markers indicated that the present new species is the sister species of the quadrannulate Orobdella
esulcata Nakano, 2010. Furthermore, mitochondrial DNA genealogy within Orobdella
naraharaetmagarum demonstrated that this new species is divided into eastern and western lineages. 相似文献
18.
19.
The musculature of male genitalia was studied hitherto only in two species of Tephritidae, one species of Platystomatidae, one species of Pallopteridae, and three species of Ulidiidae of the superfamily Tephritoidea. The split of the hypandrium from one structure into three (the hypandrium and two lateral sclerites) is traced. The hypandrial origin of the lateral sclerites of the hypandrial complex is shown based on the localization of muscle attachment sites. The subepandrial origin of the inner lobes of the surstyli is also confirmed. 相似文献
20.
The New World genus Philonome Chambers, 1874 is revised. This genus comprises twelve species, seven of which are described as new: two species, Philonome
nigrescens
sp. n. and Philonome
wielgusi
sp. n., from the United States; four species, Philonome
albivittata
sp. n., Philonome
curvilineata
sp. n., Philonome
kawakitai
sp. n., and Philonome
lambdagrapha
sp. n., from French Guiana; and one species, Philonome
penerivifera
sp. n., from Brazil. Lectotypes are designated for Philonome
clemensella Chambers, 1874 and Philonome
rivifera Meyrick, 1915. Partially on evidence of their head morphology and particularly from molecular evidence, the genus Philonome, previously associated with Bucculatricidae or Lyonetiidae, is reassigned to Tineidae. A possible systematic position of Philonome within Tineidae is discussed. Eurynome Chambers, 1875, is synonymized with Argyresthia Hübner, 1825 (Argyresthiidae). Photographs of adults and illustrations of genitalia, when available, are provided for all described species of Philonome and two species previously misplaced in Philonome, Argyresthia
luteella (Chambers, 1875) and Elachista
albella (Chambers, 1877). In addition, DNA barcodes were used for the delimitation of most species. 相似文献