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Buprestidae (Jewel Beetles)
Buprestids in love
Cantharidae (Soldier Beetles)
Soldier beetle
Cerambicidae (Long Horned Beetles)
Palo verde beetle
A palo verde beetle. The arrow points to this beetle's elytra.
Palo verde beetle head. The arrow points to the chewing mouthparts.
This palo verde beetle was in my carport last summer.
Palo verde beetle (Derobrachus hovorei) battle of the sexes
Palo verde beetle (Derobrachus hovorei)
Palo verde beetle (Derobrachus hovorei)
Palo verde beetle (Derobrachus hovorei)
Palo verde beetle (Derobrachus hovorei)
Palo verde beetle (Derobrachus hovorei)
Palo verde beetle
Palo verde beetle antenna
Palo verde beetle thorax
Palo verde beetle larva
Palo verde beetle jaws
Palo verde beetle, side view
Palo verde beetle, Derobrachus hovorei
Longhorn beetle
Cactus beetle, Moneilema gigas
Coccinellidae (Ladybugs)
Lots of beetles!
Ladybug pupa
Ladybug
Ladybugs mating
Dytiscidae (Predaceous Diving Beetles)
Predaceous diving beetle (Thermonectus nigrofasciatus)
Predaceous diving beetle foreleg. The suction pad is made up of several individual suction cups.
Sunburst beetle, Thermonectus marmoratus
Dytiscid lateral
Dytiscid A1
Dytiscid, no spine
Dytiscid, not antenna
Dytiscid, also not antenna
Dytiscid antenna
Predaceous diving beetle, Thermonectus nigrofasciatus.
Dryopidae (Long Toed Water Beetles)
Long toed water beetle, Postelichus sp
Elateridae (Click Beetles)
Chalcolepidius smaragdinus. Not sure of a common name, but I call this one the really pretty click beetle. :)
Chalcolepidius smaragdinus
Alaus zunianus, the Zuni eyed elater
Click beetle
Click mechanism side view. Pyrophorus sp.
Click beetle underside. The arrow points to the click mechanism.
Gryrinidae (Whirligig Beetles)
Dineutus sublineatus, a whirligig beetle.
Whirligig eyes, top pair
Whirligig eyes, bottom pair
Haliplidae (Crawling Water Beetles)
Crawling water beetle, Peltodytes sp.
Hydrophilidae (Water Scavenger Beetles)
Giant water scavenger beetle, Hydrophilus triangularis
Hydrophilid, side view
Hydrophilid A1
Hydrophilid spike
Hydrophilid, not antenna
Hydrophilid antenna
A water scavenger beetle's capitate antenna (Hydrophilus triangularis)
Hydrochus sp.
Passalidae (Bess Beetles)
Bess beetle
Psephenidae (Water Pennies)
Water penny, top view
Water penny, bottom view
Scarabaeidae (Scarab Beetles)
Cotinus mutabilis, also known as the fig beetle.
Grant's hurcules beetle, Dynastes granti
Fig beetle, Cotinis mutabilis
My June bug, Cotinis mutabilis
Ten-lined June beetle, Polyphylla decemlineata
Ten lined June beetle (Polyphylla decemkineata)
Beetle, Hemiphileurus illatus
Beetle
Silphidae (Carrion Beetles)
Carrion beetle
Specimen No. 9
Burying beetle with phoretic mites.
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The Dragonfly Woman 
In regards to the palo verde beetles, are they also called pine sawyer beetles? I google “Big black beetles in AZ” and saw pics of pine sawyer beetles and not palo verde beetles.
Are they the same beetle?
Pine sawyer beetles are different than palo verde beetles, but they look similar because they’re in the same family, the longhorn beetles. Pine sawyers are much smaller than the palo verde beetles though! Like less than half the size. Odd that your search isn’t including the palo verde beetle though! I’d think that would be the first thing that would pop up…