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Slender with usually contrasting irregular dark bands crossing tegmina. Pronotum with crest high and bilobed on pronotum and often with tooth at lower rear angle of sides. Hind tibiae can be greenish, yellowish, or brownish, but are more typically bluish to blue. Wings clear or whitish to bluish (usually with at least some blue color near base), and often with at least a faint, ill-defined curved dark cross band. T. salina, pallidipennis, and sparsa are similar, with pronotal crest lower toward front, without tooth on lower angle of sides, with yellowish hind tibiae. T. salina & pallidipennis have yellowish hind wings, and the dark band is always bold on the later, sometimes on the first. T. salina, pallidipennis, & pseudofasciata are often found together, and T. salina & pseudofasciata can be particularly confusing. T. sparsa has the dark band (when present) not evenly curved, but nearly straight on the inner side and narrowed at and forming a sharp angle with the spur that points toward the base. T. leucophaea is like T. sparsa except with hind tibiae blue. T. cyaneipennis and T. occidentalis have shorter wings, lower front pronotal crest, no tooth on lower pronotum, and the dark band of the hind wings is consistently present (and shaped rather like that of T. sparsa). Wings of T. cyaneipennis are most often blue. While those of T. occidentalis are often more green or yellowish. The species called "undescribed species A" here is similar, but smaller in size, and has wings yellowish to bluish; the pattern of the body and tegmina is more speckled and streaked with dark cross bands of the tegmina rarely as evident. The pronotum has sharp edges to the sides of the top, and no tooth at the lower rear angle of the sides; the front of the pronotum is not so elevated above. The dark band of the hind wing is ill-defined and weak, and shaped as in T. sparsa. The hind tibiae are not blue. These live in similar habitats through much of the Great Basin, and often they are together with T. psuedofasciata. They make harsher, more "crackling" sound in flight (rather like T. sparsa, leucophaea & cyaneipennis) that consists of pulses of two or three snaps, instead of longer buzz-like pulses. |
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