![](images/S/Sphaerionillum_castaneum_(h)_Chemsak_and_Linsley_CAS_JAC.jpg)
Specimen Type: holotype Sex: m Institution: CAS California Academy of Sciences, San Francisco, CA, USA Photographer: John Chemsak Collection Location: 5 miles North of Rio Hondo, Oaxaca, Mexico 18534
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![](images/S/Sphaerionillum_castaneum_(a)_Chemsak_and_Linsley_UCB.jpg)
Specimen Type: allotype Sex: f Institution: UCB Essig Museum of Entomology, Berkeley, California, USA Collection Location: Oaxaca, Mexico 18533
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![](images/S/Sphaerionillum_castaneum_(p)_Chemsak_and_Linsley_Oaxaca_UCB.jpg)
Specimen Type: paratype Institution: UCB Essig Museum of Entomology, Berkeley, California, USA Photographer: Larry G. Bezark Collection Location: Oaxaca, Mexico 13308
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![](images/S/Sphaerionillum_castaneum_Chemsak_and_Linsley.jpg)
13309
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