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Sphaeropthalma difficilis
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Wilson, Joseph S., 2017, Nocturnal Velvet Ants (Hymenoptera: Mutillidae) of Joshua Tree National Park, Riverside County, California with the description of three new species, Zootaxa 4319 (2), pp. 329-367
: 353-354
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353-354 |
|
Sphaeropthalma difficilis
|
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Boehme, Nicole F., Tanner, David A., Williams, Kevin A. & Pitts, James P., 2012, Faunal study of velvet ants (Hymenoptera: Mutillidae) and their activity patterns and habitat preference at Ash Meadows National Wildlife Refuge, Nye County, Nevada, USA, Zootaxa 3587, pp. 1-45
: 28-29
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28-29 |
|
Sphaeropthalma difficilis
|
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Pitts, James P., Wilson, Joseph S., Williams, Kevin A. & Boehme, Nicole F., 2010, Nocturnal velvet ant males (Hymenoptera: Mutillidae) of Deep Canyon, California including four new species and a fifth new species from Owens Lake Valley, California, Zootaxa 2553, pp. 1-34
: 21
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21 |
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Sphaeropthalma difficilis
|
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Pitts, James P., Wilson, Joseph S., Williams, Kevin A. & Boehme, Nicole F., 2009, Velvet ants (Hymenoptera: Mutillidae) of the Algodones sand dunes of California, USA, Zootaxa 2131, pp. 1-53
: 39-40
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39-40 |
