Thyreodon apricus
Porter, 1984
Thyreodon apricus is a of ichneumon in the Ophioninae, described by Porter in 1984. The Thyreodon belongs to the tribe Enicospilini, a group of primarily tropical wasps. Members of Ophioninae are known for their ability to sting using their short, sharp ovipositors for defense. This species occurs in the southwestern United States and Mexico. Very little is known about its specific , and it has been subject to taxonomic confusion with similar large, colorful ichneumon wasps.
Pronunciation
How to pronounce Thyreodon apricus: /ˌθaɪrəˈdoʊn əˈpraɪkəs/
These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.
Identification
Thyreodon apricus is a large ichneumon that has been confused with Rhynchophion flammipennis due to similar coloration. The exhibits black or dark body coloration with bright orange or red wings, a pattern shared with other members of Enicospilini. Accurate identification requires examination of taxonomic characters not visible in field observations. The Thyreodon contains only a few described species, and species-level identification is challenging without examination.
Habitat
Known from arid and semi-arid regions of the southwestern United States and Mexico. Specimens have been associated with desert scrub and canyon environments.
Distribution
Recorded from Arizona, USA and Mexico. The has been documented at the mouth of Madera Canyon in Pima County, Arizona.
Seasonality
have been observed in August in Arizona. Activity patterns are likely tied to availability and seasonal conditions in desert environments.
Behavior
Members of the Ophioninae are typically , though some related in Enicospilini are day-active and visit flowers for nectar. Specific behavioral observations for T. apricus are lacking.
Ecological Role
As a member of Ophioninae, this likely functions as a of lepidopteran larvae, though specific records are not documented. The tribe Enicospilini generally parasitizes caterpillars of .
Similar Taxa
- Rhynchophion flammipennisSimilar large size and coloration with black or metallic blue body and bright orange or red wings. These have been confused in field observations and online images. Rhynchophion flammipennis is a known of Manduca sexta (Tobacco Hornworm), while Thyreodon apricus remains undocumented.
- Tarantula hawk wasps (Pompilidae: Pepsis/Hemipepsis)Similar aposematic coloration with black or metallic blue bodies and orange or red wings. These are spider-hunting wasps in a different , distinguished by their extremely long legs, different wing venation, and of hunting spiders rather than parasitizing caterpillars.
More Details
Taxonomic Uncertainty
The specimen discussed in the ' Eric' blog post was initially identified as Rhynchophion flammipennis but was subsequently re-evaluated by Bob Carlson and David Wahl as likely belonging to Thyreodon, though neither specialist was familiar with the in the southwestern region. This highlights ongoing taxonomic challenges in the Ophioninae of North America.
Collection History
The Thyreodon is represented in the University of California Riverside (UCR) entomology collection, which holds one of the world's largest collections of Ichneumonidae. However, specific voucher specimens of T. apricus are not separately listed in the available collection database.