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Morphological identification of Lucilia sericata, Lucilia cuprina and their hybrids (Diptera, Calliphoridae).

Williams KA, Villet MH - Zookeys (2014)

Bottom Line: Discriminant function analysis of the characters successfully separated the specimens into three unambiguous groups - L. sericata, L. cuprina and hybrids.This is the first evidence that hybrids of these two species can be identified from their morphology.The usefulness of the morphological characters is also discussed and photographs of several characters are included to facilitate their assessment.

View Article: PubMed Central - HTML - PubMed

Affiliation: Entomology Department, Durban Natural Science Museum, Durban, South Africa.

ABSTRACT
Hybrids of Lucilia sericata and Lucilia cuprina have been shown to exist in previous studies using molecular methods, but no study has shown explicitly that these hybrids can be identified morphologically. Published morphological characters used to identify L. sericata and L. cuprina were reviewed, and then scored and tested using specimens of both species and known hybrids. Ordination by multi-dimensional scaling indicated that the species were separable, and that hybrids resembled L. cuprina, whatever their origin. Discriminant function analysis of the characters successfully separated the specimens into three unambiguous groups - L. sericata, L. cuprina and hybrids. The hybrids were morphologically similar irrespective of whether they were from an ancient introgressed lineage or more modern. This is the first evidence that hybrids of these two species can be identified from their morphology. The usefulness of the morphological characters is also discussed and photographs of several characters are included to facilitate their assessment.

No MeSH data available.


Related in: MedlinePlus

Posterior slope of the humeral callus behind the basal setae and the posterior edge of notopleuron behind the posterior notopleural seta. Lucilia sericata (A) and Lucilia cuprina (B).
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Figure 5: Posterior slope of the humeral callus behind the basal setae and the posterior edge of notopleuron behind the posterior notopleural seta. Lucilia sericata (A) and Lucilia cuprina (B).

Mentions: The hairiness of the posterior slope of the humeral callus (Table 2 and Suppl. material 1; Figure 5) behind the basal setae is a reliable character in separating Lucilia sericata and Lucilia cuprina even though there is variation within species in the number of hairs. The hybrids tended to have more hairs than the pure Lucilia cuprina specimens, but there was still overlap in the numbers of hairs between the hybrids and pure Lucilia cuprina.


Morphological identification of Lucilia sericata, Lucilia cuprina and their hybrids (Diptera, Calliphoridae).

Williams KA, Villet MH - Zookeys (2014)

Posterior slope of the humeral callus behind the basal setae and the posterior edge of notopleuron behind the posterior notopleural seta. Lucilia sericata (A) and Lucilia cuprina (B).
© Copyright Policy - creative-commons-attribution
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4109482&req=5

Figure 5: Posterior slope of the humeral callus behind the basal setae and the posterior edge of notopleuron behind the posterior notopleural seta. Lucilia sericata (A) and Lucilia cuprina (B).
Mentions: The hairiness of the posterior slope of the humeral callus (Table 2 and Suppl. material 1; Figure 5) behind the basal setae is a reliable character in separating Lucilia sericata and Lucilia cuprina even though there is variation within species in the number of hairs. The hybrids tended to have more hairs than the pure Lucilia cuprina specimens, but there was still overlap in the numbers of hairs between the hybrids and pure Lucilia cuprina.

Bottom Line: Discriminant function analysis of the characters successfully separated the specimens into three unambiguous groups - L. sericata, L. cuprina and hybrids.This is the first evidence that hybrids of these two species can be identified from their morphology.The usefulness of the morphological characters is also discussed and photographs of several characters are included to facilitate their assessment.

View Article: PubMed Central - HTML - PubMed

Affiliation: Entomology Department, Durban Natural Science Museum, Durban, South Africa.

ABSTRACT
Hybrids of Lucilia sericata and Lucilia cuprina have been shown to exist in previous studies using molecular methods, but no study has shown explicitly that these hybrids can be identified morphologically. Published morphological characters used to identify L. sericata and L. cuprina were reviewed, and then scored and tested using specimens of both species and known hybrids. Ordination by multi-dimensional scaling indicated that the species were separable, and that hybrids resembled L. cuprina, whatever their origin. Discriminant function analysis of the characters successfully separated the specimens into three unambiguous groups - L. sericata, L. cuprina and hybrids. The hybrids were morphologically similar irrespective of whether they were from an ancient introgressed lineage or more modern. This is the first evidence that hybrids of these two species can be identified from their morphology. The usefulness of the morphological characters is also discussed and photographs of several characters are included to facilitate their assessment.

No MeSH data available.


Related in: MedlinePlus