Cratichneumon viator acerbus
(Cresson, 1867)
Cratichneumon viator acerbus is a of ichneumon in the Ichneumonidae. It was described by Cresson in 1867. As a member of the Cratichneumon, it belongs to a group of wasps. Records indicate presence in parts of Europe and North America.
Pronunciation
How to pronounce Cratichneumon viator acerbus: /kraː.tiˈkʰnɛʊ̯.mɔn viˈaː.tɔr aˈkɛr.bʊs/
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Identification
Distinguishable from nominate Cratichneumon viator viator and other primarily by subtle morphological differences in coloration and structural features, though specific diagnostic characters for this subspecies require examination. Separation from other Cratichneumon depends on detailed study of wing venation, propodeal , and ovipositor proportions.
Distribution
Documented from Belgium (including Flemish Region), Denmark, and parts of Canada (Southeast and Southwest regions). The disjunct distribution suggests either wider unrecorded range or potential introduction events.
Similar Taxa
- Cratichneumon viator viatorNominate ; distinguished by subtle morphological differences in coloration and body proportions
- Other Cratichneumon species members share general body plan; require examination of wing venation, propodeal structure, and genitalic features for reliable separation
More Details
Taxonomic note
This was originally described by Cresson in 1867. The subspecific status within Cratichneumon viator indicates recognition of geographically structured variation, though the biological basis for this distinction (genetic, ecological, or purely morphological) has not been clearly established in available literature.