Apiomerus cazieri
Berniker & Szerlip, 2011
Desert Bee Assassin
Apiomerus cazieri is a of ( ) to the Chihuahuan and Sonoran Deserts of the southwestern United States and northern Mexico. The species was described in 2011 and is commonly known as the Desert Assassin. It is an active with documented including the Trichodes ornatus and (). The species belongs to the Apiomerus, whose members are frequently observed hunting on flowers where they ambush .


Pronunciation
How to pronounce Apiomerus cazieri: /ˌeɪpiˈɒmərəsˌkæziˈɛri/
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Identification
Apiomerus cazieri can be distinguished from related by its desert distribution and specific associations. Within the Apiomerus, it replaces the darker A. crassipes to the east and the more broadly distributed A. spissipes of the Great Plains. The species shows typical Apiomerus with an elongate body, forelegs adapted for grasping prey, and a curved for piercing. Coloration and exact pattern details require specimen examination for definitive identification; consult Berniker et al. (2011) for diagnostic features separating it from in the crassipes and pictipes species groups.
Images
Habitat
Chihuahuan and Sonoran Desert environments, including desert scrub and arid grasslands. Associated with flowering plants where visitation occurs.
Distribution
Southwestern United States (Arizona, New Mexico, Texas) and northern Mexico. Records concentrated in desert regions of these areas.
Diet
Active of Trichodes ornatus (a in ) and (). Hunting strategy involves ambush on flowers where come to forage.
Host Associations
Behavior
Ambush that hunts on flowers, concealing itself on or beneath blossoms to capture visiting and other . Documented to hide under coneflower petals (Echinacea sp.) when hunting.
Ecological Role
in desert , contributing to regulation of and . May influence local dynamics of and associated flower-visiting .
Human Relevance
Potential minor impact on in managed located near natural desert . Bite can cause pain and should be avoided; like other reduviids, possesses capable of defensive stabbing.
Similar Taxa
- Apiomerus spissipesBroadly distributed across Great Plains, replaced by A. cazieri in desert Southwest; generally lighter coloration and different distribution
- Apiomerus crassipesOccurs further east, generally darker in coloration; distribution abuts or overlaps with A. cazieri in transitional zones
- Apiomerus flaviventrisAnother desert-dwelling with coloration; found in similar and requires careful examination for separation
More Details
Taxonomic history
Described by Berniker & Szerlip in 2011 as part of a comprehensive revision of the crassipes and pictipes groups of Apiomerus. The species epithet honors an (presumably Cazier, based on standard practices in the ).
Collection notes
Specimens have been collected at lights and by active searching on flowering vegetation. The appears to be genuinely uncommon in collections, with relatively few Oklahoma specimens available for study as of 2011.