Calyxochaetus frontalis

(Loew, 1861)

Calyxochaetus frontalis is a of long-legged fly in the Dolichopodidae, Sympycninae. Originally described by Loew in 1861, it belongs to the C. frontalis species group within the . A lectotype was designated for this species during a comprehensive 2021 revision that recognized 36 species in the genus and established five species groups. The species is known from the Nearctic region.

Pronunciation

How to pronounce Calyxochaetus frontalis: /kæˌlɪksɵˈkiːtəs frɒnˈtælɪs/

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Identification

Member of the C. frontalis group; distinguished from other species groups by morphological characteristics detailed in the revision. Specific diagnostic features for C. frontalis relative to in its species group (C. binodatus, C. bovanodatus, C. desertus, C. furcatus, C. lamellicornis, C. lacrima, C. nodatus, C. ornatus, C. pictipes, C. remifer, C. sobrinus, C. tohono) require examination of male genitalia and other subtle morphological traits. A key to males is provided in the revision.

Distribution

Nearctic region. Specific locality data mapped in the revision but not detailed in available abstract.

Similar Taxa

  • Calyxochaetus nodatusAlso in C. frontalis group; originally described by Loew in 1862, closely related and potentially morphologically similar
  • Calyxochaetus sobrinusMember of same group; requires careful examination to distinguish from C. frontalis
  • Calyxochaetus furcatusCongeneric in same group with which C. frontalis may be confused without proper identification keys

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