Macromya crocata

Reinhard, 1968

Macromya crocata is a of bristle fly in the Tachinidae. It belongs to the tribe Nemoraeini and was described by Reinhard in 1968. The species is found in North America, where it occurs in forested . Like other tachinid flies, it is a , though specific records for this species remain undocumented. are active during late summer and fall, often observed visiting flowers for nectar.

Pronunciation

How to pronounce Macromya crocata: /ˌmakroˈmaɪə ˈkroʊkətə/

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Identification

Macromya crocata strongly resembles Adejeania vexatrix, another large tachinid fly found in similar forested . However, M. crocata lacks the distinctive "beak" formed by elongated palps that characterizes A. vexatrix. Both share the spiny abdominal bristles typical of many tachinids. Macromya crocata may also be confused with Hystricia abrupta and Paradejeania rutilioides, though the latter is generally more robust, spinier, and more subdued in coloration.

Habitat

Forested in western North America.

Distribution

North America, with records from the western United States including Colorado, and ranging from British Columbia and Alberta south through California, Arizona, and New Mexico.

Seasonality

are on the wing in late summer and fall, typically July through October, with peak activity in August and September.

Ecological Role

As a tachinid fly, M. crocata serves as a of other insects, likely caterpillars given the habits of related . The species contributes to natural of potential pest and functions as a flower visitor, complementing .

Similar Taxa

  • Adejeania vexatrixNearly identical in appearance and preference, but distinguished by its elongated palps forming a beak-like structure and slightly smaller, brighter appearance.
  • Hystricia abruptaAnother common frequently mistaken for A. vexatrix and M. crocata; shares forested and general .
  • Paradejeania rutilioidesMore robust and spinier than M. crocata, with more subdued orange coloration; active later in the season (August–December).

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