A DNA barcode reference library of Neuroptera (Insecta, Neuropterida) from Beijing

Area of Science:

• Entomology
• Biodiversity Studies
• Molecular Taxonomy

Background:

• Neuroptera (lacewings) are ancient insects with some species valuable for biological control.
• Beijing's Neuroptera fauna was previously documented with 47 species across seven families and 32 genera.
• Understanding lacewing diversity is crucial for ecological and agricultural applications.

Purpose of the Study:

• To use DNA barcoding to identify and assess lacewing species diversity in Beijing.
• To establish a molecular baseline for Neuroptera species identification in the region.
• To update the known Neuroptera fauna of Beijing and China.

Main Methods:

• DNA barcoding utilizing the cytochrome c oxidase subunit I (COI) gene fragment.
• Sequencing and analysis of 217 COI gene barcode sequences.
• Species identification and comparison with existing taxonomic records.

Main Results:

• Successfully obtained 217 DNA barcode sequences representing 49 lacewing species.
• Identified 20 newly recorded Neuroptera species for Beijing.
• Nothochrysinae subfamily and two specific species (Chrysopila ciliata, Drepanepteryx algida) were newly recorded for Beijing and China, respectively.
• Potential cryptic species were suggested within Pseudomallada prasinus.

Conclusions:

• DNA barcoding is effective for lacewing species identification in Beijing, with potential for detecting cryptic diversity.
• The study significantly expands the known Neuroptera diversity in Beijing and China.
• Findings contribute to biodiversity knowledge and support the use of lacewings in biological control strategies.