Calliphora alaskensis

(Shannon, 1923)

Calliphora alaskensis is a of blow fly in the Calliphoridae, first described by Shannon in 1923 with the basionym Steringomyia alaskensis. A , C. alaskensis echinosa, was described by Grunin in 1970 but is now considered a synonym. As a member of the Calliphora, it belongs to a group of flies commonly known as blue bottle flies that are significant in due to their role in decomposition.

Pronunciation

How to pronounce Calliphora alaskensis: //ˌkælɪˈfɔːrə ˌæləˈskɛnsɪs//

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Identification

No specific diagnostic features distinguishing Calliphora alaskensis from are provided in the available sources. Like other Calliphora , likely exhibit metallic blue or blue-green coloration typical of the . Precise identification presumably requires examination of morphological characters such as thoracic and abdominal bristle patterns, genitalia structure, and wing venation, though these specifics are not documented here. Larvae would be expected to resemble those of other calliphorid maggots, making species-level identification from stages difficult without molecular or advanced chemical analysis methods.

Distribution

The specific epithet "alaskensis" suggests an association with Alaska, though the precise geographic range is not explicitly documented in the provided sources. The synonym C. alaskensis echinosa implies potential broader distribution or variation in northern regions.

Ecological Role

As a blow fly in the Calliphoridae, Calliphora alaskensis likely functions as an active decomposer. Members of this family are known to locate and oviposit on carrion shortly after death, playing a significant role in nutrient cycling and decomposition processes. The presumably contributes to contexts as a postmortem indicator, though specific case documentation is not available.

Human Relevance

The has been included in research developing rapid identification techniques for . Direct analysis in real time (DART) mass spectrometry combined with machine learning has been demonstrated to distinguish blow fly species including Calliphora alaskensis from mixed maggot , potentially enabling faster species identification without rearing larvae to adulthood.

Similar Taxa

Calliphora vicinaAnother widespread Calliphora used as a model in research; share metallic blue coloration and larvae are morphologically similar, requiring chemical or molecular methods for differentiation.
Calliphora vomitoriaClosely related blue bottle fly with similar appearance; distinguished by subtle morphological differences in bristle patterns and genitalia that may not be apparent without detailed examination.

More Details

Taxonomic History

Originally described as Steringomyia alaskensis by Shannon in 1923, later transferred to Calliphora. The C. alaskensis echinosa was described by Grunin in 1970 but has been synonymized with the nominate form.

Forensic Application

Included in a 2024 study demonstrating that DART mass spectrometry with conformal prediction statistical modeling can identify up to six blow fly simultaneously from mixed maggot in ethanol suspension, including Calliphora alaskensis, Calliphora vicina, Calliphora vomitoria, Lucilia sericata, Lucilia cuprina, and Phormia regina.