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Figure 1.Holotype male of Tibicen neomexicensis sp. n.: a dorsal view b ventral view; and paratype female: c dorsal view d ventral view.
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Figure 3.Key morphological features separating Tibicen neomexicensis sp. n. (a) and Tibicen chiricahua (b): 1) the color of the cubitus anterior vein (CuA) and its second branch (CuA2) in the hind wing, and 2) the color of the anterior margin of the subcostal vein (Sc) of the fore wing.
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Figure 4.Spectrograms and oscillograms of the calling song of Tibicen neomexicensis sp. n.: a complete call b 0.5 seconds from the middle of phrase 2, illustrating 14 amplitude bursts c a single amplitude burst from b, illustrating the pulse structure. Spectrograms were generated using a 256-sample Fast Fourier Transform with the Hamming window function.
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Figure 5.Spectrograms and oscillograms of the calling song of Tibicen chiricahua: a complete call b 0.5 seconds from the middle of phrase 2, illustrating 27 amplitude bursts c a single amplitude burst from b, illustrating the pulse structure. Spectrograms were generated using a 256-sample Fast Fourier Transform with the Hamming window function.
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Figure 6.Geographic distribution of Tibicen chiricahua (orange circles) and Tibicen neomexicensis sp. n. (yellow triangles), estimated from field observations and museum specimens. Green regions indicate pinyon-juniper habitats. The gray region represents the Albuquerque Basin and Chihuahuan Desert. Tibicen chiricahua is also found in Mexico (Sanborn 2007).
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