| 1a. Eyes small and set far forward on head; margin of head behind eye forms a right angle; body very elongate. |
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| 1b. Eyes large, set farther back; margins of head rounded; body less elongate. |
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| 2a. Brush of closely set and multiple hairs on posterolateral margins of terminalia. |
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| 2b. Evenly spaced hairs on posterolateral margins of terminalia. |
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| 3a. Darker pigmented with various pronounced brown or black markings on head or pronotum, dark abdominal stripe; sutures darkly marked; subgenital plate obviously originates near anterior of sternum nine. Sweltsa |
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| 3b. Lightly pigmented with only pale or no markings on pronotum, abdomen; head with dark markings; sutures not darkly marked; subgenital plate appears to rise near posterior margin of sternum eight. |
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| 4a. Meso- and metanota without median bar; mandibles weakly developed, little sclerotized; vagina membranous |
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| 4b. Meso- and metanota darkly marked with median bar; mandibles developed, sclerotized; vagina thickened or spinulated. |
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| 5a. Pale, no dark patterns |
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| 5b. Darkly pigmented, distinctly patterned Triznaka |