Heterachthes Newman, 1840

Swift, Ian, 2008, Heterachthes rugosicollisMartins: A New Cerambycid to the North American Fauna (Coleoptera: Cerambycidae), and a Key to the Genus, The Coleopterists Bulletin 62 (4), pp. 545-549 : 545-549

Key to the species of North American Heterachthes Newman

1. Elytra with eburneous maculae (sometimes indistinct)....................... 2

– Elytra with maculae absent..................................................... 5

2. Elytra usually with two eburneous maculae................................... 3

– Elytra usually with four eburneous maculae.................................. 4

3. Elytral apices spinose; maculae subapical............................. sablensis

– Elytral apices subtruncate to rounded; maculae generally medial........... 6

4. Pronotum rugosely punctuate; postmedial fasciae forming a somewhat angulate transverse band.................................................. nobilis

– Pronotum very sparsely, shallowly punctuate; postmedial fasciae somewhat rounded, oblique................................................ quadrimaculata

5. Pronotum finely, densely punctuate; abdomen densely clothed in very short, appressed setae; elytra and pronotum with dense to sparse, appressed, pale pubescence................................................................. ebenus

– Pronotum coarsely, rugosely punctuate; abdomen nearly glabrous; elytra with sparse, suberect golden pubescence............................... texanus

6. Antemedial elytral maculate forming a single acute undulating (zigzag) band; integumental pubescence of two types: long and recurved (flying hairs), and short, suberect; pronotum with three medial tubercles................. polingi

– Antemedial elytral maculae pale, diffuse; pubescence short, golden, erect; pronotum lacking tubercles.......................................... rugosicollis