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Systematics and biology of some species of Micrurapteryx Spuler (Lepidoptera, Gracillariidae) from the Holarctic Region, with re-description of M. caraganella (Hering) from Siberia.

Kirichenko N, Triberti P, Mutanen M, Magnoux E, Landry JF, Lopez-Vaamonde C - Zookeys (2016)

Bottom Line: In addition, based on both morphological and molecular evidence as well as examination of type specimens, the North American Parectopa occulta Braun, 1922 and Parectopa albicostella Braun, 1925 are transferred to Micrurapteryx as Micrurapteryx occulta (Braun, 1922), comb. n. with albicostella as its junior synonym (syn. n.).Characters used to distinguish Micrurapteryx from Parectopa are presented and illustrated.These findings provide another example of the potential of DNA barcoding to reveal overlooked species and illuminate nomenclatural problems.

View Article: PubMed Central - HTML - PubMed

Affiliation: Sukachev Institute of Forest SB RAS, Akademgorodok 50/28, 660036, Krasnoyarsk, Russia; Siberian Federal University, 79 Svobodny pr., 660041, Krasnoyarsk, Russia; INRA, UR0633 Zoologie Forestière, F-45075 Orléans, France.

ABSTRACT
During a DNA barcoding campaign of leaf-mining insects from Siberia, a genetically divergent lineage of a gracillariid belonging to the genus Micrurapteryx was discovered, whose larvae developed on Caragana Fabr. and Medicago L. (Fabaceae). Specimens from Siberia showed similar external morphology to the Palearctic Micrurapteryx gradatella and the Nearctic Parectopa occulta but differed in male genitalia, DNA barcodes, and nuclear genes histone H3 and 28S. Members of this lineage are re-described here as Micrurapteryx caraganella (Hering, 1957), comb. n., an available name published with only a brief description of its larva and leaf mine. Micrurapteryx caraganella is widely distributed throughout Siberia, from Tyumen oblast in the West to Transbaikalia in the East. Occasionally it may severely affect its main host, Caragana arborescens Lam. This species has been confused in the past with Micrurapteryx gradatella in Siberia, but field observations confirm that Micrurapteryx gradatella exists in Siberia and is sympatric with Micrurapteryx caraganella, at least in the Krasnoyarsk region, where it feeds on different host plants (Vicia amoena Fisch. and Vicia sp.). In addition, based on both morphological and molecular evidence as well as examination of type specimens, the North American Parectopa occulta Braun, 1922 and Parectopa albicostella Braun, 1925 are transferred to Micrurapteryx as Micrurapteryx occulta (Braun, 1922), comb. n. with albicostella as its junior synonym (syn. n.). Characters used to distinguish Micrurapteryx from Parectopa are presented and illustrated. These findings provide another example of the potential of DNA barcoding to reveal overlooked species and illuminate nomenclatural problems.

No MeSH data available.


Related in: MedlinePlus

Adults of Micrurapteryx and Parectopa spp. 11Micrurapteryxsalicifoliella, specimen CNCLEP00117661 ♀ ex Salix (Canada, Ontario, Jellicoe) 12Parectoparobiniella, specimen CNCLEP00083021 ♂ ex Robinia (USA, Maryland, Scientists Cliffs). Scale bars: 2 mm.
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Figure 6: Adults of Micrurapteryx and Parectopa spp. 11Micrurapteryxsalicifoliella, specimen CNCLEP00117661 ♀ ex Salix (Canada, Ontario, Jellicoe) 12Parectoparobiniella, specimen CNCLEP00083021 ♂ ex Robinia (USA, Maryland, Scientists Cliffs). Scale bars: 2 mm.

Mentions: Braun (1925) indicated that Micrurapteryxalbicostella was closely allied to Micrurapteryxsalicifoliella Chambers (Fig. 11), Parectopathermopsella Chambers, and Micrurapteryxocculta Braun, “but separated from all of them by the dark head and thorax and the white costal edge.” We observed that these colour characteristics vary individually among all specimens examined, including among Micrurapteryxsalicifoliella. For example, a pair of Micrurapteryxocculta with identical barcodes reared from leafmines on the same lupine plant from British Columbia (specimens CNCLEP00121158 and CNCLEP00121159) shows the male with a dark head and thorax as well as a darkened dorsal edge as exhibited by the male holotype of Parectopaalbicostella, whereas the female has a white head, thorax, and costal edge as in the female holotype of Micrurapteryxocculta. In fact, the holotype of Parectopaalbicostella has the thorax predominantly dark peppered with white scales (Fig. 8, not really “streaked” as Braun described). Although this might suggest sexual dimorphism in colouration, both colour patterns (and others) were observed in each sex among the other specimens that we examined.


Systematics and biology of some species of Micrurapteryx Spuler (Lepidoptera, Gracillariidae) from the Holarctic Region, with re-description of M. caraganella (Hering) from Siberia.

Kirichenko N, Triberti P, Mutanen M, Magnoux E, Landry JF, Lopez-Vaamonde C - Zookeys (2016)

Adults of Micrurapteryx and Parectopa spp. 11Micrurapteryxsalicifoliella, specimen CNCLEP00117661 ♀ ex Salix (Canada, Ontario, Jellicoe) 12Parectoparobiniella, specimen CNCLEP00083021 ♂ ex Robinia (USA, Maryland, Scientists Cliffs). Scale bars: 2 mm.
© Copyright Policy - creative-commons-attribution
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4829971&req=5

Figure 6: Adults of Micrurapteryx and Parectopa spp. 11Micrurapteryxsalicifoliella, specimen CNCLEP00117661 ♀ ex Salix (Canada, Ontario, Jellicoe) 12Parectoparobiniella, specimen CNCLEP00083021 ♂ ex Robinia (USA, Maryland, Scientists Cliffs). Scale bars: 2 mm.
Mentions: Braun (1925) indicated that Micrurapteryxalbicostella was closely allied to Micrurapteryxsalicifoliella Chambers (Fig. 11), Parectopathermopsella Chambers, and Micrurapteryxocculta Braun, “but separated from all of them by the dark head and thorax and the white costal edge.” We observed that these colour characteristics vary individually among all specimens examined, including among Micrurapteryxsalicifoliella. For example, a pair of Micrurapteryxocculta with identical barcodes reared from leafmines on the same lupine plant from British Columbia (specimens CNCLEP00121158 and CNCLEP00121159) shows the male with a dark head and thorax as well as a darkened dorsal edge as exhibited by the male holotype of Parectopaalbicostella, whereas the female has a white head, thorax, and costal edge as in the female holotype of Micrurapteryxocculta. In fact, the holotype of Parectopaalbicostella has the thorax predominantly dark peppered with white scales (Fig. 8, not really “streaked” as Braun described). Although this might suggest sexual dimorphism in colouration, both colour patterns (and others) were observed in each sex among the other specimens that we examined.

Bottom Line: In addition, based on both morphological and molecular evidence as well as examination of type specimens, the North American Parectopa occulta Braun, 1922 and Parectopa albicostella Braun, 1925 are transferred to Micrurapteryx as Micrurapteryx occulta (Braun, 1922), comb. n. with albicostella as its junior synonym (syn. n.).Characters used to distinguish Micrurapteryx from Parectopa are presented and illustrated.These findings provide another example of the potential of DNA barcoding to reveal overlooked species and illuminate nomenclatural problems.

View Article: PubMed Central - HTML - PubMed

Affiliation: Sukachev Institute of Forest SB RAS, Akademgorodok 50/28, 660036, Krasnoyarsk, Russia; Siberian Federal University, 79 Svobodny pr., 660041, Krasnoyarsk, Russia; INRA, UR0633 Zoologie Forestière, F-45075 Orléans, France.

ABSTRACT
During a DNA barcoding campaign of leaf-mining insects from Siberia, a genetically divergent lineage of a gracillariid belonging to the genus Micrurapteryx was discovered, whose larvae developed on Caragana Fabr. and Medicago L. (Fabaceae). Specimens from Siberia showed similar external morphology to the Palearctic Micrurapteryx gradatella and the Nearctic Parectopa occulta but differed in male genitalia, DNA barcodes, and nuclear genes histone H3 and 28S. Members of this lineage are re-described here as Micrurapteryx caraganella (Hering, 1957), comb. n., an available name published with only a brief description of its larva and leaf mine. Micrurapteryx caraganella is widely distributed throughout Siberia, from Tyumen oblast in the West to Transbaikalia in the East. Occasionally it may severely affect its main host, Caragana arborescens Lam. This species has been confused in the past with Micrurapteryx gradatella in Siberia, but field observations confirm that Micrurapteryx gradatella exists in Siberia and is sympatric with Micrurapteryx caraganella, at least in the Krasnoyarsk region, where it feeds on different host plants (Vicia amoena Fisch. and Vicia sp.). In addition, based on both morphological and molecular evidence as well as examination of type specimens, the North American Parectopa occulta Braun, 1922 and Parectopa albicostella Braun, 1925 are transferred to Micrurapteryx as Micrurapteryx occulta (Braun, 1922), comb. n. with albicostella as its junior synonym (syn. n.). Characters used to distinguish Micrurapteryx from Parectopa are presented and illustrated. These findings provide another example of the potential of DNA barcoding to reveal overlooked species and illuminate nomenclatural problems.

No MeSH data available.


Related in: MedlinePlus