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subgenus Philolithus

The top one (male) is Philolithus - Philolithus morbillosus Unkn Ironclad or death feigning Beetle - Philolithus morbillosus Unusual Eleodes sp. - Philolithus actuosus Darkling beetle w strongly ridged elytra - Philolithus Philothus or other? - Philolithus Philolithus densicollis? - Philolithus densicollis Stenomorpha - Philolithus densicollis Philolithus morbillosus? - Philolithus morbillosus
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Polyphaga
No Taxon (Series Cucujiformia)
Superfamily Tenebrionoidea
Family Tenebrionidae (Darkling Beetles)
Subfamily Pimeliinae
Tribe Asidini
Genus Philolithus
No Taxon subgenus Philolithus
Numbers
14 spp. in our area, 17 total(1)
Range
w NA (BC-CA to UT-AZ & Mexico), 8 spp. endemic to CA(1)
Works Cited
1.Catalogue of Tenebrionidae (Coleoptera) of North America
Yves Bousquet, Donald B. Thomas, Patrice Bouchard, Aaron D. Smith, Rolf L. Aalbu, M. Andrew Johnston, Warren E. Steiner Jr. 2018. ZooKeys 728: 1-455.