Asian Lady Beetle – Dalton, MA

Sample information

Picture
Entry by: Lila B.
Location
Collection date 02/22/2026
Captive / Cultivated? Wild-caught
Group Berkshire Community College
Observations

The specimen was found indoors above a lamp on Sunday, February 22, 2026, at 8:40 PM. The beetle was moving at the time of collection, and flying when trapped in jar. Outdoor temperature was approximately 30°F, consistent with winter conditions that often cause Asian lady beetles to move indoors for overwintering shelter.

Putative identification Arthropoda Insecta Coleoptera Coccinellidae Harmonia Harmonia axyridis

Methods

Extraction kit Monarch DNA extraction (NEB)
DNA extraction location Abdomen
Single or Duplex PCR Duplex Reaction
Gel electrophoresis system Edvotek Gel Electrophoresis
Buffer 1X TAE
DNA stain SYBR Safe
Gel images
Protocol notes

1.) We used a DNA extraction protocol based on the insect adaptation of New England Biolabs’ Monarch Spin gDNA Extraction kit (Product # T3010).

2.) The specimen was incubated for 45 minutes in a hot water bath at 56 degrees C.

 

Results

Wolbachia presence Unknown
Confidence level Low
Explanation of confidence level

My confidence in the results is low because the arthropod control gene did not amplify during PCR. Since the control gene was not detected, it is unclear whether the DNA extraction and PCR reaction worked properly for the specimen. Without a positive arthropod control band, the absence of Wolbachia pipientis results cannot be confidently interpreted as a true negative result. Possible reasons for this include degraded DNA, insufficient DNA extraction, or errors during PCR preparation. Therefore, the results are considered inconclusive rather than definitively negative.

Wolbachia 16S sequence
Arthropod COI sequence
Summary
Report Inappropriate Post